|“||I never had a graduation, a prom or you know, a life. But you did. You have everything, and it's not because you're a good little girl who deserves happiness, it's because you stole mine!||”|
Katerina Petrova (Bulgarian: Катерина Петрова; English: Katherine Pierce) is one of the main characters of The Vampire Diaries. She was the main antagonist of Season One (through John Gilbert's and Isobel's actions, as both were working for her), and one of the major antagonists of Season Two. She was also a recurring character in the third and fourth seasons.
After giving birth to a baby girl deemed "illegitimate" and being separated from her, she was banished off to England, where she met Niklaus Mikaelson and Elijah Mikaelson. At first, she was attracted to the two brothers. However, after finding out that Klaus planned on using her as a sacrifice in order to break the curse that had been placed on him (as she was Tatia's Doppelgänger as a human), she sabotaged his plan by turning herself into a vampire, stealing the moonstone, which Klaus needed in order to break the curse, and then running away. After that, she ran from him for over five centuries.
Her activities during her first centuries as a vampire are unknown, but at some point between the 15th and 19th centuries, she met and befriended Pearl, her daughter Anna, and Emily Bennett. In the late 19th century, she traveled to Mystic Falls, where she met Stefan and Damon Salvatore and subsequently turned them both into vampires after falling in love with them. When the Town Council found out that vampires were in the town, she faked her death and escaped with the help of George Lockwood in exchange for the moonstone.
During the 20th century, she watched over Stefan while still hiding from Klaus. In 2010, she came back to Mystic Falls with the intention of finally earning her freedom from him. To that end, she turned Caroline Forbes into a vampire, and Mason Lockwood into a werewolf. She escaped Mystic Falls again shortly after coming back, when the Original family came back to the town as well.
After failing to induce Klaus' forgiveness by securing the cure and handing it over to Elijah, Katherine managed to draw Klaus away from Mystic Falls by revealing to him in a letter that a witch in New Orleans named Jane-Anne Deveraux was plotting against him. Now that he is gone, she is officially back in Mystic Falls.
In Graduation, Katherine gets into a violent fight with Elena. As she is about to rip her descendant Doppelgänger's heart out of her chest, the latter forces the cure down the former's throat, making her fall unconscious. It seems that Katherine is now human again, after being a vampire for over five centuries.
Katherine is the descendant of Tatia, and the maternal ancestor of Isobel Flemming and her daughter, Elena Gilbert. She was once the romantic interest of Stefan and Damon Salvatore. Since the late 15th century, she has also been the romantic interest of Elijah, with whom she was involved until he effectively ended their relationship by leaving to join his half-brother in New Orleans.
Katerina is a member of the Petrova Family.
Katerina Petrova (Cyrillic Катерина Петрова) was born into a wealthy Bulgarian family on June 5th 1473. In 1490, when she was about 16 or 17 years of age, Katerina became pregnant by an unknown man, and her family disowned her for the shameful birth of an illegitimate daughter. She carried the child to term, but seconds after her daughter's birth, Katerina's father took the child away, claiming it would be better for both of them to never see one another. Katerina was devastated by this and was banished to England, where she quickly adjusted by becoming English. In 1492, she met Trevor, who introduced her to Lord Elijah, who in turn introduced her to his younger brother, Lord Niklaus. Katerina was attracted to Klaus, until she found out what he was, and that he was planning on using her as a sacrifice to break the The Hybrid Curse placed on him. She escaped with the help of Trevor, who had fallen in love with her. He led her pursuers astray and told her to go east, to a cottage in the woods where she would be safe. When she arrived at a cottage, Katerina met a vampire named Rose.
When Rose found out that Katerina had escaped from Klaus with the moonstone, she locked her in a room and told her that she would take her to Klaus as soon as the opportunity arose. Katerina tried to commit suicide by stabbing herself with a knife, saying she would rather die than go back to Klaus, but Rose force-fed her some of her blood to heal her. When Rose turned her back to confront Trevor, Katerina hung herself with a length of rope. Later, when Katerina woke up in transition, Trevor asked why she did it and claimed he would have helped her live. Katerina responds by saying that he would have been able to help her run and that running was never going to be enough. Rose then explains to Trevor that Katerina used him to escape and, knowing Klaus would find out their role in the escape, Rose attempted to kill Katerina with a stake. Katerina used the owner of the cabin as a shield, which resulted in her death. Katerina then gave in to her instincts and drained the little old lady, completing her transition into a vampire. She then threw the body towards Rose and Trevor and fled into the night. Katerina returned to Bulgaria in the latter months of 1492 to find her entire family brutally slaughtered by Klaus. She knew he had done it as revenge for her escape and subsequent transition. She was last seen weeping over her mother's dead body.
372 years had passed when in 1864 Katerina arrived in Mystic Falls, Virginia, by which time she had taken the name Katherine Pierce, presumably to avoid detection by Klaus. At some point she had become friends with Pearl and her daughter, Anna, and she saved the life of the witch Emily Bennett, putting Emily in her debt. Emily forged her a special piece of jewelry with the stone Lapis Lazuli which allowed her to walk in the sun without being burned. She was taken in by one of the town's founders, Giuseppe Salvatore, having spun a story about being orphaned by a fire that killed her family. Katherine met and fell in love with his son Stefan Salvatore, though she quickly began a physical relationship with Stefan's older brother, Damon, as well. Katherine created quite a few vampires while living in Mystic Falls, which inevitably alerted the Founding Families to their existence. Pearl warned Katherine that the town knew about the vampires after discovering an elixir containing vervain, which Honoria Fell had asked to be sold at the apothecary. Pearl tried to convince her to leave, but Katherine refused, claiming she had a plan in motion. Her plan, it turned out, was to turn Stefan and Damon into vampires, having seduced them both during her stay at the Salvatore household.
Realizing how quickly the Founder's Council would take action against the vampires, Katherine struck a deal with George Lockwood: she would give him the moonstone if he would help her fake her death. Eventually, Stefan unwittingly suggested to his father that he knew a vampire, and Giuseppe guessed Katherine's true identity. Giuseppe spiked Stefan's drink with vervain and, later that same night, Katherine bit him. She was incapacitated by the vervain in his bloodstream, and, hearing the commotion, Giuseppe burst in to take her away. Damon later went to rescue her, and Stefan, upset that he had hurt his brother and jeopardized Katherine's life, helped him in the effort. They were both killed trying to save her, shot by their own father, Giuseppe, who was ashamed his sons had succumbed to the wiles of a demon.
Katherine and the other vampires were taken to Fell's Church to be destroyed, but George helped Katherine escape. She gave George the moonstone, but instead of leaving right away, she turned to see Damon and Stefan's bodies lying in the road. She ran to Stefan, kissed him, and promised they would be together again someday. After transitioning into a vampire, Damon was told by Emily that Katherine was trapped in the tomb beneath the church, and as a result, the older Salvatore never stopped loving Katherine as he awaited the day he would be able to rescue her. In reality, Katherine was still lying low to evade Klaus, and she kept a close eye on the younger Salvatore brother, pointing out that she had seen him in the front row of a concert in the 1980s to prove that she'd always been watching over him.
In the 1920s, Katherine was in Chicago at the same time as Stefan, but she only observed him from afar. After a police raid cleared out the speakeasy, Katherine spotted Rebekah's necklace on the ground. She moved to pick it up, but ran away before Stefan could see or notice her. She watched him for a few moments before slipping into the shadows.
During the 1970s, Katherine employed the talents of the vampire Will, who owned the music club and bar, Billy's, and ran an identity theft ring that secured new identities for vampires. Damon, who was friends with Will and helped him by killing people to steal their ID cards, unwittingly helped Katherine in her mission to remain undetected.
Season One through Four
When Katherine learned of the escape of the Tomb vampires, she gave her descendant and friend, Isobel, a Lapis Lazuli medallion, enabling the young vampire to walk in the sun. Katherine needed the tomb vampires dead because she didn't want Klaus to find out she was still alive, so she had Isobel retrieve Johnathan Gilbert's invention and give it to John Gilbert to use against the vampires in Mystic Falls. This resulted in the deaths of the remaining tomb vampires. In Founder's Day after the chaos has settled, Katherine, having stolen some of Elena Gilbert's clothes, goes to the Gilbert house, where she poses as Elena in the presence of Damon. The two kiss, only to be interrupted by Elena's aunt, Jenna Sommers. Unaware of the presence of vampires or the existence of Katherine, Jenna invites her into the house. Katherine startles John Gilbert in the kitchen, still pretending to be Elena. She notices the magic ring he is wearing and, using a butcher's knife, viciously chops his fingers off, then stabs him. Elena arrives and comes to John's aid while Katherine hovers behind her.
Seeing John Gilbert seriously injured, Elena calls for help and is terrified by Katherine's super-speed around the house before leaving. Upon her return, Damon and Stefan are left reeling after she's caused so much damage in so little time. At the mayor's wake at the Lockwood mansion, she engages in a small power play with Bonnie, claiming that it never ends well for Bennett witches. Bonnie attempts her usual attack against vampires, but Katherine, a much older vampire than Bonnie is used to encountering, seems to have a certain amount of resistance to such spells.
Katherine claims to Stefan that she returned for him, and the two engage in light banter, Katherine playfully and Stefan suspiciously. Their conversation effectively ends when Stefan tells Katherine he hates her and in retaliation she skewers him with a metal rod. Later, Damon demand the truth after he and Katherine make out, and she confesses that she never loved him and that "it was always Stefan" that she loved.Later, she visits Caroline Forbes in the hospital and tells her to give the Salvatores a message: "Game on." Then she smothers Caroline with a pillow, killing her with Damon's blood in her system. A few days later, Katherine appears in Caroline's bedroom and tells her not to be frightened, and that they were going to have so much fun together.
After blackmailing Caroline into distracting Elena, Katherine sets her sights on Stefan for the day. She gets an early start by manipulating his dreams, bringing him back to when he had escorted her to the Founder's Ball in 1864. In the dream, he notices that Damon has found someone to entertain himself with - Elena. Katherine then takes the dream to present day, where Elena and Damon are getting cozy at the Mystic Grill. Stefan wakes suddenly to find Elena asleep in his arms, but he quickly realizes it is actually Katherine.
Later, after he has locked Katherine up in the cellar and threatened her with vervain unless she tells the truth about her return, Stefan interrogates her and she reveals her deal in 1864 with George Lockwood, a werewolf. In exchange for the rare moonstone, Lockwood saved her from imprisonment in the tomb. Stefan points out that she betrayed all the other vampires, including her friend Pearl, just to fake her death, and Katherine seems to have no regrets about her past actions. She insists that she never compelled Stefan to love her, that his love for her was real, and she only compelled him not to fear her. After she escapes the interrogation, she finally meets her doppelgänger, Elena, face to face. In a final flashback to 1864, Katherine is ready to leave Mystic Falls, but falls back to kiss an unconscious Stefan one last time, promising they would be together again one day.
It is soon revealed that Katherine had set up Mason Lockwood's first kill in order to trigger his werewolf gene. She continues to manipulate him by seducing him and persuading him to find the moonstone from the Lockwood mansion. After Mason is killed, Katherine compels Jenna to stab herself as revenge on the Salvatore camp, and also compels Matt to pick a fight with Tyler and not stop until Tyler kills him. Katherine decides to retrieve the moonstone herself with the help of Lucy, a witch. She dances with Stefan and briefly tries for a diplomatic surrender, but when he refuses to give up the stone, she kills Aimee Bradley in the middle of the dance floor. Later, Caroline successfully lures Katherine into a room upstairs that Bonnie had put a spell on, preventing vampires from leaving it. Stuck in the room with Damon and Stefan, Katherine goads the brothers until they attack her.
Unfortunately, Lucy had cast a spell over Katherine and Elena so that whatever happened to Katherine would also happen to Elena. After learning of Bonnie's involvement, however, Lucy turns the tables on Katherine; after her debt to Katherine has been paid by getting her the moonstone, Lucy incapacitates her. Katherine awakes imprisoned in the tomb, where Damon says she should have been for a long time. As Damon closes the door of the tomb, Katherine screams that Elena is in danger and needs to be protected.
After learning from Rose about the existence of the Originals, Elena visits Katherine to ask her about her past. Katherine complies in exchange for incremental amounts of blood; he time in the tomb without sustenance has weakened her. Through flashbacks, Katherine reveals that she had borne a child before she was turned, and that she was the first Petrova doppelgänger. She explains that, as such, Klaus wanted to sacrifice her as part of a ritual to break a curse. Katherine recounts how she foiled Klaus' plan by tricking Rose into turning her, thus rendering her useless for the sacrifice. Now that another doppelgänger had appeared, the moment Klaus discovered Elena's existence he would find her for the sacrifice and attempt the ritual again.
When Stefan finally arrives searching for Elena, Katherine warns them that Klaus would not hesitate to kill all of the people Elena loves, just like Klaus had done to her. Stefan accuses her of tricking Elena, in a desperate attempt to get herself out of the tomb, but Katherine insists that the tomb is the safest place to be, as no vampire would want to enter for fear of being trapped. Later, alone once more, Katherine peruses the Petrova family history that Elena had brought, tearing up over drawings of her parents.
In an attempt to get the moonstone from Katherine, Bonnie performs a spell that involves burning Stefan's picture of Katherine from 1864 and throwing the ashes on her, rendering her unconscious for a minute or two. Jeremy, in a valiant effort to spare Bonnie from overexerting her powers, ventures into the tomb alone and asks Katherine for the moonstone. Naturally she refuses, so he shoots a stake into her chest and, while she's distracted, throws the ashes into her face and incapacitates her. While she is unconscious, he enters the tomb, searches for and finds the moonstone, and tries to leave but Katherine revives and attacks him. When Stefan and Bonnie arrive, Katherine holds Jeremy hostage and demands that Bonnie open the tomb so that she can escape. When Bonnie fails, Katherine bites Jeremy but Stefan reacts by entering the tomb and throwing Jeremy out of it, now imprisoning himself along with Katherine.
Katherine is very pleased with herself for trapping Stefan with her. She enjoys planting dreams in his head while he sleeps, though later she does offer the useful advice of seeking out Isobel for information about Klaus. After Elena strikes a deal with Elijah, the warlock Jonas breaks the spell of the tomb, allowing vampires to leave it. Elijah allows Stefan to leave, but compels Katherine to stay inside.
When Damon visits Katherine in the tomb fishing for confirmation about how to kill an Original, she begs Damon not to kill Elijah, because then she would be stuck in the tomb forever. Later this is revealed to be a lie: rather, Katherine knew that killing the Original that had compelled her would actually release her from the compulsion. After they've staked Elijah, Damon finds Katherine in his shower, cheekily asking for a robe to borrow. She further surprises Damon by reaffirming her pledge to help him protect Elena. Katherine subsequently takes up residence with the Salvatore brothers, much to the displeasure of Elena.
Katherine repeatedly states that she will help them to deal with Klaus, and engages in research with the brothers. She is staked and nearly killed by Luka Martin when he infiltrates the mansion via astral projection in an attempt to release Elijah, but is rescued by Damon, who unwittingly burns Luka to death. When his father strikes out in a rage against Elena, Katherine tricks him into believing that she is Elena and kills him. Later, she flirts with Damon in bed, despite admitting to him that she knew the dagger would kill the vampire who used it, and, having to make a choice between Damon and Stefan in a deal with John and Isobel, she chose Stefan once again. Needless to say, Damon does not play along and asks Katherine to find another room to sleep in.
Despite insisting to Stefan and Damon that she's on their side when it comes to killing Klaus, Katherine reunites with Isobel, formulating a contingency plan in case things don't go well for the Salvatores. She helps Isobel kidnap Elena, but soon Isobel double-crosses her and the warlock Maddox incapacitates her, later delivering her to Klaus.
In The Last Dance, Klaus/Alaric compels her to tell him everything she knows, even coaxing out of her information she isn't sure about. He denies her request that he just kill her; he considers death to be a "kindness" after searching for her for over 500 years, and promises to draw out his punishment for at least half as long. After their conversation, Klaus/Alaric hands her a pocket knife and compels her to stab herself repeatedly until he returns. In Klaus, Katherine asks Klaus/Alaric why he would undo the curse in Mystic Falls knowing that a lot people will try to stop him.Klaus/Alaric reveals to her that he must perform the ritual at the doppelgängers birthplace. Katherine remarks that she didn’t know that was a requirement, to which Klaus/Alaric responds with the cruel reminder that, though she had fled before she could learn these details, Klaus did just fine finding her birthplace - and slaughtering her family. As Klaus/Alaric is leaving, he tells her she can't leave until he tells her to. Later, Damon and Andie Star go to Alaric’s apartment to discover Katherine is alive. Damon tells Katherine he has vervain, which won’t undo Klaus/Alaric’s compulsion but will prevent further compulsion. Before he gives it to her, he demands to know why she double-crossed them with Isobel. She replies that she didn't think the others could stand a chance against Klaus and she was looking out for herself. Damon gives her the vervain and tells her she owes him - and he will collect. Later that night Katherine is drinking and dancing around the apartment until she hears Klaus/Alaric returning. He tells her Alaric's body is no longer useful. Irritated when Katherine tries to ply him with alcohol, Klaus/Alaric snatches the bottle away from her, throws it against the wall and compels her to sit down and shut up. Having taken the vervain, Katherine only pretends to submit to his compulsion. When Maddox returns with Greta and Klaus's casket, they perform a spell to return Klaus to his true body. They open the casket and Katherine watches in horror as the real Klaus walks out.
In The Last Day, Damon goes to Alaric's apartment to collect his debt for giving her vervain. He asks Katherine where Klaus is keeping the werewolf. Katherine is reluctant to help out but reveals that Klaus has captured Caroline and Tyler. She is shocked to learn that Elena has vampire blood in her system and Damon warns her that this means she would have to compete with Elena for Stefan's love forever. Katherine reveals that Caroline and Tyler are being held in the tomb.
Klaus returns to Alaric's apartment and is immediately suspicious of Katherine. He compels her to tell him what she has been doing but, as she is taking vervain, she is able to lie. Still suspicious, he compels her to remove her daylight bracelet, walk to the window and stand in the sunlight. Katherine has to do it to keep up the ruse and screams in pain until Klaus relents, satisfied. Later that night, after Klaus returns to the apartment and tells Katherine that Elena is with Greta, Damon appears and tells Klaus that he rescued the werewolf and vampire and killed Maddox, thereby foiling his plan. Klaus has Katherine leave the room, then informs Damon of his backup plans. Katherine revives Damon with a blood bag (Klaus had knocked him out off-screen) and tells him that Klaus has gone to begin the ritual. She admits that she had to do something so Klaus wouldn't realize she was on vervain, and reveals that Klaus made her make a call as Elena to lure someone out, explaining that he needed another vampire. Damon asks why Klaus didn't use him as the vampire in the sacrifice. Apparently Klaus had said that Damon was as good as dead. She points out the ugly wound on his arm and asks what it is. He replies, "It's a werewolf bite."
In The Sun Also Rises, Damon shows Katherine his werewolf bite but decides to leave. She is hurt that after 145 years he is leaving without saying goodbye and tells him not to depart on bad terms. She insists that she didn't have a choice and had to lure Jenna for Klaus, adding that she chose her life over Jenna's. Damon observes that Katherine will survive all of this without a scratch. Katherine points out that she doesn't let love get in the way and Damon tells her to enjoy an eternity alone. He leaves to offer himself to Klaus, but Katherine insists that Klaus won't accept him as his blood is impure.
In As I Lay Dying, Damon has a flashback and remembers speaking to Katherine in the 1860s. In it, she asks if he will miss her while he is off fighting and he says he will, but points out that she will still have Stefan. Katherine asks if it is so wrong for her to want them both. However, Damon hallucinates that Elena has joined them. Elena tells him that Katherine was just toying with him and he could have walked away - he had a choice. Flashback-Katherine bids him to return quickly.Stefan shows up at Alaric's apartment looking for Klaus and finds Katherine there, wondering why Klaus's compulsion hasn't worn off. He admits that they failed to kill him just before Klaus returns. She watches as Stefan tries to bargain with Klaus for the cure to a werewolf bite. Klaus calls Katherine over and bites her; she starts to panic, but Klaus immediately feeds her his blood, and the bite heals, revealing that Klaus's blood is the cure. Meanwhile, Damon suffers more hallucinations of Katherine, mixing the present with the past, thinking he is chasing her through some woods. He remembers begging Katherine to feed him her blood so they could be together forever. Back in the apartment, Klaus calls Katherine over and compels her to take his blood to Damon and to come right back. She leaves immediately, but Stefan, knowing that Katherine has been ingesting vervain, worries that she will never deliver the cure to Damon.
However, Katherine does follow through and appears at the eleventh hour, interrupting Elena's would-be final moments with Damon. She admits that she decided to deliver it because she owed Damon. Elena asks about Stefan, and Katherine informs them that Stefan has surrendered himself to Klaus in exchange for the cure. Before she leaves, and after taunting Elena about working two Salvatores at once, she adds that it's OK to love them both - she did, after all.
Katherine makes her first appearance of the season in The End of The Affair, when she calls Damon and gives him information about Stefan's whereabouts. She declines to tell Damon where she is, but is later seen exiting a phone booth in Chicago. In Disturbing Behavior, she is still in Chicago and catches Stefan's attention outside of a boutique where Rebekah is trying on clothes. She fishes for information about Rebekah's necklace, which Klaus is looking for and which Stefan gave to Elena. She wants to know Stefan's plans, but he refuses to share them. Katherine warns him about plotting against Klaus, as well as dealing with Rebekah. She later saves him from Gloria's torture by stabbing the witch in the neck, and wants in on his plans if they involve taking down Klaus, but he turns her down again.
Towards the end of the episode, Katherine fools Bonnie into thinking she's Elena, and manages to steal Esther's Talisman. She shows up at the Boarding House with the necklace, proposing to Damon that they team up and get away from Mystic Falls to go on a little "road trip".
In The Reckoning, after they stop the car, Katherine reveals to Damon that she has kidnapped Jeremy. She needs Jeremy because he is able to communicate with ghosts, and he has a connection with Anna, one of the only people who knew anything about Mikael, a vampire who hunts vampires. Anna says Mikael is the only one who can kill Klaus for good, and he was entombed by a witch in the 1990s. Anna reluctantly gives them information about him, warning them that Mikael will kill all of them if awakened.
Katherine ignores her warning, and is able to locate his tomb with Jeremy's help. Katherine spends two days trying, unsuccessfully, to get Mikael to feed, and finally brings him a human and drips fresh blood into his mouth. Mikael opens his eyes, and, horrified, orders her to stop feeding him the blood. As he continues to lay in his coffin, still very weak, she begins to doubt his formidable reputation. She asks him whether he can kill Klaus or not, and Mikael answers affirmatively. He asks Katherine to remove the chains restraining him; after she does, he reveals that he does not feed on living things, and proceeds to attack and feed on her.
In Homecoming, Damon enlists Katherine in a plan to kill Klaus. She pretends to be Elena so that Elena won't be in danger when everything goes down. However, during the party, Klaus, thinking that she is Elena, reveals that in the event that Klaus is killed, the other Hybrids will kill Damon. Katherine then runs back to the Salvatore house, revives Stefan (whom Mikael and Damon had incapacitated to keep him away from the party) and tells him what Klaus said. She tries to convince him to care enough to stop Damon from killing Klaus, because regardless of what he decides, she is going back to see the plan through.
Back at the party, Mikael compels one of the hybrids to grab Katherine (pretending to be Elena) and threatens to kill her if Klaus does not leave the Lockwood house. Klaus, believing that Mikael is bluffing, says to go ahead. Mikael then stabs Katherine, who falls down apparently mortally wounded, right as Damon jumps Klaus. Much to Mikael's surprise, Katherine stands up, throws wolfsbane grenades at the approaching hybrids and flees the scene.
Later, she calls Damon to tell him he had a good plan and confirms Damon's assumption that she's already heading out of town. She hangs up with Damon and turns to Stefan, who is in the passenger seat. He asks Katherine why she, who has wanted Klaus dead for 500 years, would stop a plan to kill him just to save Damon. Katherine says she did it not just to save Damon, but also Stefan's humanity. He doesn't believe her, reminding her that she only cares about herself. Katherine tells him he knows that's not true, and that despite everything that had happened, she did love Stefan and Damon.
Katherine then says that humanity is a vampire's greatest weakness, and no matter how hard one tries to suppress it, it keeps trying to fight its way back in - and sometimes, she lets it. Stefan confesses that he doesn't want to let his humanity back in after everything he has done. Katherine says that he must, because she needs him to get angry enough at Klaus to do what she has planned next. She convinces him to steal the coffins that Klaus keeps his family in, before she herself puts as many miles as possible between her and Klaus.
In We All Go A Little Mad Sometimes, Katherine appears to Elena through vivid hallucinations. She torments Elena, telling her they're both the same and that she deserves to die. She proceeds to tell Elena that now that she’s a vampire, Stefan is going to hate her, too. Later, Elena finds herself walking to the Wickery Bridge with Connor on one side and Katherine on the other, asking her if she's ready to die yet and telling her she can't take back what she's done, that she's a monster who deserves to die.
In Down the Rabbit Hole, Katherine makes her dramatic return. Unseen by the characters or viewers, she kills Massak and presumably steals the headstone from him. Later, she confronts and attacks Elena in the caves, defeating her and switching clothes with her. As Vaughn is about to finish Jeremy off, “Elena” swoops in to save him. She is about to bite Vaughn and kill him when Jeremy reminds her of the Hunter’s Curse; instead she just knocks Vaughn out. Katherine continues to pose as Elena while Jeremy begs her to heal Bonnie with her blood to save her, but “Elena” insists they must raise Silas and get the cure first. Growing impatient, Katherine reveals her identity and grabs Jeremy, slits his wrist, and puts it in Silas’ mouth, causing Silas' eyes to open. To speed things up, Katherine bites Jeremy’s neck and holds the wound over Silas’ mouth. Silas gains enough strength to raise his hand and hold Jeremy’s head in place, so Katherine grabs the now unguarded cure and flees.
While not physically appearing in Bring It On, Katherine did send the vampire Will to kill the werewolf Hayley, who was now no more than a liability, having served her sole purpose of telling Katherine where to find the cure and how to get it. Later on, Hayley reveals to Klaus that Katherine had successfully managed to avoid him for over five hundred years because she had established a network of people who were willing to do anything for her, including tie up loose ends.
Katherine does not appear again until American Gothic, when Elena and Rebekah track her to a small town where she has compelled everyone to keep her presence there, among other things, a secret. However, Elena is able to glean information from the townsfolk, who are unaware that Katherine has a doppelgänger and believe that Elena is Katherine. Katherine spots Elena searching the town and ambushes her, but Rebekah quickly intervenes and reestablishes dominance. Rebekah and Elena bring Katherine to a diner to interrogate her, which she unwillingly endures with her usual snark. When Katherine mentions Jeremy, whose death she had caused, Elena remains indifferent and Katherine realizes that her descendant has abandoned her humanity. Rebekah attempts to compel Katherine to reveal where the cure is, but Katherine smiles and informs them that she's on vervain. However, she does reveal that she wants the cure in order to barter with Klaus for her freedom. When Elena finds out Katherine is supposed to be meeting someone named "EM", she exchanges clothing and accessories with Katherine and goes to the meeting in her place.
After Elena leaves, Katherine antagonizes Rebekah until the Salvatores arrive, demanding to know where Elena is. Katherine admits that Elena has unknowingly gone to meet Elijah, with whom she hints at having a sexual relationship. Rebekah tells Stefan where Elena is meeting "EM" and Katherine reluctantly agrees to take Rebekah and Damon to the cure.
Katherine takes Rebekah and Damon to a home she says is hers and, after opening a safe, claims that the cure has been stolen. They don't believe her, so Rebekah heads upstairs to search, leaving Damon alone with Katherine. He notices that the fish tank suspiciously has no fish in it, but only a large treasure chest. When he reaches into the tank, his hand gets burned - it is filled with vervain. Damon begins to attempt to scoop out the chest with a net when Katherine shoves his head into the vervain for several seconds, then sends him howling in pain to the floor. She secures the chest herself and almost escapes out the front door, but Rebekah reappears and blocks her way. Katherine tosses the cure away from herself, distracting Rebekah long enough so that she can escape.
While Elijah and Elena discuss the foolishness men who believe the innocent girls they (Elijah and the Salvatores) fell in love with still exist within who Katherine and Elena are now, Katherine appears suddenly and snaps Elena’s neck. Elijah kneels by Elena’s lifeless body and confronts Katherine about her killing Jeremy and feeling nothing for Elena despite their similarly tragic fates. Katherine says she didn't enjoy killing Jeremy, but that doing so was necessary to survive. Elijah wonders aloud if that’s what he is to her -- a means to survive. She protests, insisting that she loves him, but Elijah cannot be persuaded. She makes a last-ditch effort by reminding him that she can't broker a deal with Klaus without his help, but this appears to hurt the situation more than it helps, and Elijah leaves her.
Katherine arrives, alone, at the home of the woman Elena and Rebekah had first talked to when they got to town and retrieves her "package" - the real cure and the key to securing her freedom. Later, Katherine confronts Elijah on the street and tells him that he was right: she’s told so many lies to survive for so long, she’s beginning to believe them herself. She admits that she doesn’t remember who she was when they met, but that she’d like to find out. Katherine explains that she could use the cure to make Klaus mortal and kill him, but this would mean losing Elijah, a consequence she's not willing to accept. Elijah, moved by Katherine's speech, still resists temptation and raises concerns about Katherine's track record for deceiving men. Katherine responds by taking his hand and placing the cure in it, saying she wants him to trust her like she's now trusting him, and that he must decide what happens next, with both the cure and their relationship.
Katherine does not appear in Pictures of You, but she does leave Klaus a letter:
I hear Elijah has refused you the cure and in return, you have refused me my freedom. Shame on you both. But while you boys sort out your problems, I have one last thing to offer you. I've caught wind that there is a witch in New Orleans named Jane-Anne Deveraux plotting a move against you. Hunt her down. What she has to say will rattle you so deeply to your core that chasing little old me will be the least of your concerns. It's been a fun five centuries, Klaus, but I've worn down too many good heels running from you.
Love and hate,
In The Originals, Katherine returns to Mystic Falls after Klaus's departure to New Orleans. She casually strolls into the Salvatore boarding house and tells Stefan and Damon that Hayley was exactly what they needed to get rid of Klaus for good. Later, she shows up at Rebekah's house uninvited and eavesdrops on Rebekah's phone call with Elijah. She insists that she and Klaus are the same in that they are driven by their loneliness, and Klaus won't be able to walk away from his new situation with Hayley.After Rebekah refuses to follow Klaus and Elijah to New Orleans, Katherine begs Elijah to stay with her so they can make a life of their own and let Klaus deal with his own business. Elijah kisses her on the forehead and says, "Goodbye, Katerina".
In She's Come Undone, Katherine meets with Bonnie, who wants Silas' headstone which Katherine stole along with the cure. Katherine, reluctant to give up her potential leverage, asks Bonnie how she could benefit from handing it over, but Bonnie just vaguely insists that she would make it worth Katherine's while.Later, she arrives at the Salvatore boarding house at the brothers' request; they want Katherine's help with bringing back Elena's humanity, and Katherine is more than happy to torture her doppelgänger. When she enters the house, she taunts Rebekah and Matt before heading down to the cell where Elena is locked up. Katherine pulls Elena out of the vault and makes a snarky remark about checking to see if Elena still has a heart before she plunges her hand in Elena's chest. Katherine interrogates her, asking about what transpired between Elena and Elijah in Willoughby; Katherine clearly believes that whatever Elena said turned Elijah against her. In response, Elena goads Katherine about running from Klaus for so long, calls her a self-obsessed maniac and cruelly wonders aloud why anyone would want to be with "damaged goods" like her. Katherine retaliates by grabbing Elena's neck and admits that she's done terrible things to survive, but instead of turning off her humanity, she dealt with it. She adds that Elena wouldn't last a week as a vampire without everyone fawning over her before she locks her in the vault again. After a moment, she decides that seeing Elena go on a rampage would be more entertaining and unlocks the vault, leaving it open for Elena to escape.
She returns to the main level of the house and pours herself a few successive glasses of bourbon while talking to Damon. She taunts him by predicting that Elena will rush back to Stefan when she gets her humanity back, calling this the tragedy of Damon: he never gets the girl. At that moment, Stefan shows up and reveals that Elena has escaped. Katherine feigns carelessness before admitting that she would derive more pleasure from seeing Elena continue her downward spiral than if she managed to start recovering from it.
Bonnie sets up another meeting with Katherine, who has figured out that Bonnie needs the headstone because it contains Qetsiyah's blood. Having the headstone would give Bonnie the power to drop the veil to The Other Side whenever she chooses, instead of having to wait to channel the power of the full moon. Katherine asks again what is in it for her, and Bonnie sweetens the deal by promising that once the veil is dropped, she'll find out from Qetsiyah how she made Silas invulnerable to any weapon, and in turn Bonnie will share the secret with Katherine. With the prospect of finally having true freedom from Klaus in her sights, Katherine agrees to the deal.
In The Walking Dead, Katherine met Bonnie in the woods where we learned that Bonnie wanted to charge all three points of the Expression Triangle (where the massacres had taken place) and channel the mystical energy from Silas' tombstone. That would drop the veil inside the points of the Triangle just long enough to get what she needs -- which is to contact Qetsiyah and find out how she put Silas down. Katherine tried to walk away, but Bonnie had linked them so that Katherine was on an invisible leash and whatever happened to one of them happened to the other. Bonnie couldn't have Silas getting inside Katherine's head and finding out Bonnie could do the spell whenever she wanted. She went with Bonnie to the other two places where the massacres took place and then they went to a cave which is located in the centre of the expression triangle. Katherine heard someone coming, so Bonnie gave her more leash so she could go stop them. It was Elena, who managed to stake Katherine in the stomach. Bonnie felt it, too, and bled. Elena could've finished Katherine off, but Stefan had heard from Bonnie about the link, so he stopped Elena. Katherine bolted.In Graduation, Katherine confronts Bonnie, demanding the immortality that she was promised in return for the tombstone containing Qetsiyah's calcified blood. When Bonnie informs her that she is out of luck since Bonnie was unable to contact Qetsiyah about the spell, Katherine gets angry and vengeful, and threatens to kill Elena, who she feels has a better life than she deserves. Bonnie threatens her right back, but is distracted by other students arriving for graduation, giving Katherine the opportunity to slink away. When Elena arrives back at the school looking for Bonnie and Jeremy before the veil is put back up, she is ambushed by Katherine, who throws her against lockers and kicks her around. After a few nasty comments from Katherine, Elena gets riled up and begins to fight back with almost equal measure. Katherine gains the upper hand, and is about to rip out Elena's heart when Elena pulls the cure out of her pocket and shoves it into Katherine's mouth. She forces Katherine's jaw shut to break open the vial as she struggles to get free from Katherine's grip. After a few moments Katherine falls unconscious next to Elena, who wishes her a "happy, human life."
It is unknown what effect the cure will have on Katherine, though it is assumed that she will now be human. However, any potential side effects of taking the cure have not yet been revealed.
The Originals Series
In her early life, Katherine was a young and attractive girl who was punished by her family for having a child out of wedlock. After she was banished from Bulgaria, she relocated to England and seemed quite capable of making independent and intelligent choices. After she met Klaus, discovered that he and Elijah were vampires and that Klaus planned to sacrifice her in a ritual, she escaped them and ran for her life. On her way she even conned Rose into turning her into a vampire, securing at once the means to outrun Klaus as well as his eternal ire for thwarting his plans.
|“||We manipulate, we thirst for power, we control, we punish, but our actions are driven by one singular place deep inside. We're alone, and we hate it.||”|
— Katherine about Klaus and herself
After she had turned, she immediately fled the only vampires she knew and apparently learned to survive as one on her own. The large gap of time from her transition to her arrival in Mystic Falls is a mystery, but she likely befriended Pearl during this time. In 1864, she seduced both Damon and Stefan Salvatore, revealing to a compelled Stefan that she had big plans for the three of them to be together. Although she did develop genuine affection for both brothers, and even love for Stefan, she was also calculating and selfish, selling out the other vampires in town in order to fake her own death. Her actions both in 1492 and 1864 demonstrate an extremely well-developed sense of self-preservation, almost always at the expense of any human compassion or remorse.
In present day, Katherine remains very much the same in this respect. She returns to Mystic Falls with the goal of securing the moonstone as well as a vampire, a werewolf, and the second doppelgänger, solely for the purpose of handing them over to Klaus in exchange for amnesty. In the process, she manipulates and seduces Mason Lockwood to have him do her bidding, orchestrates the activation of both Mason's and Tyler's werewolf gene, turns Caroline into a vampire, compels Jenna to stab herself, lures Jenna out of her house to be sacrificed in Klaus' ritual, and leaves behind her a trail of other casualties, all in the name of securing her freedom. However, she redeems herself to the Salvatores, if only slightly, first by delivering the antidote to Damon's werewolf bite and later by helping in the plan to kill Mikael.
Despite her ruthlessness, it is clear that Katherine has deep, genuine feelings for Stefan. Unable to reveal herself to him without ruining the usefulness of being dead, she still observed him from afar over the years, admitting as much to Stefan in the present day. In fact, Katherine is usually at her most honest about her true feelings when she believes she is unobserved, as when she kissed an unconscious Stefan before leaving Mystic Falls, and when she looked on at him in the 1920s speakeasy.
Her relationships with other characters also sometimes reveal a crack in the "psychotic bitch" facade. Although she claims to his face that she never loved him, Damon still holds some of her affection, and she has offered him genuine help more than once. With regard to her doppelgänger, although she was willing to trade Elena's life for her freedom from Klaus, she never demonstrated any real animosity toward her. In fact she freely admitted an admiration for her descendant's tenacity, a quality she values in herself. And despite fearing Elijah nearly as much as Klaus because of her escape centuries earlier, she has since become his ally, and even seems to genuinely care about and possibly love him.
Katherine's extremely heightened sense of self-preservation has helped her develop a knack for creating elaborate plans and deceptions. Even when she takes a risk, which must be well worth it, she proceeds with caution and a means of escape in place. Thus, despite whatever feelings she has for Stefan, Damon, and now Elijah, it cannot be certain whether she would save their lives over her own, though the evidence so far suggests Katherine could not help but choose her own survival above all else.
Throughout her centuries-long life, Katherine has always been tough, feisty, independent and smart. If a task needs doing, she'll find a way to accomplish it, usually through a combination of uncompromising will and skilled manipulation of people and circumstances. Her personal motto - "Better you die than I" - does well to encapsulate her instinct for self-preservation as well as the detached cruelty which many vampires choose to adopt. But in her private moments, there is yet a glimpse of the human girl who once said that life is too cruel to live without love.
- Main article: Katherine Pierce/Appearance
The simplest way of distinguishing Katherine from Elena is in observing basic cosmetic differences: Katherine favors a curly hair style, while Elena typically wears hers straight; Katherine often pairs a sensually cut outfit with heels, while Elena is usually seen wearing comfortable, practical options like jeans, T-shirts and sneakers; and Katherine tends to wear more makeup than Elena.
However, there are subtler differences between the two that only a keener eye can detect. Katherine's eyes seem to be a shade darker than Elena's, having a smoky, shadowy appearance; where Elena's eyes are guileless, Katherine usually seems to be hiding something behind hers. Her mannerisms are more deliberate, almost as though she is performing for her audience - a skill that comes in handy when she wants to borrow the identity of the younger doppelgänger. Even her speaking voice seems harsher, more cutting than Elena's.
- Emily Bennett - She was Katherine's handmaiden in 1864 as well as a powerful witch. Katherine betrayed her when she told the people in town that Emily was a witch.
- Henry - He was a vampire who helped Katherine to investigate the werewolf attacks within the town of Mystic Falls back in 1864. Henry was staked and killed by Alaric Saltzman in the 21st century.
- George Lockwood - George was a werewolf and the co-conspirator in Katherine's faked death. She and George made a deal in which George helped her escape and told no one of it, in exchange for giving George the moonstone.
- Will - He had a business to get vampires fake identities but due to not being able to walk in the sunlight he had a deal with Damon. He gave her a fake identity back in the 70s.
- Mason Lockwood - Mason was a werewolf and a romantic partner of Katherine's in the 21st century whom she manipulated in order to obtain the moonstone. Mason was killed by Damon.
- Jimmy - He was a friend of Mason Lockwood. Katherine used her power of mind control on Jimmy and compelled him to attack Mason while accusing him of sleeping with his girlfriend, Marla. Mason accidentally killed him, which triggered the curse.
- Isobel Flemming - Isobel is Elena's biological mother and Katherine's descendant. She helped Katherine in her plan to destroy the tomb vampires and seek information about The Originals. Katherine also helped her obtain a Lapis Lazuli necklace to allow her to walk in daylight. Isobel later betrayed Katherine.
- John Gilbert - Not directly. Isobel asked John to get a device that was taken from Johnathan Gilbert in 1864. John fails to get the device, so Isobel gets it herself by trading Jeremy for it, whom she had kidnapped. She then gives it to John, who uses it to destroy the vampires that came out of the tomb. Katherine was the one to instigate the plan to kill the tomb vampires.
- Jenna Sommers - Katherine used mind control on Jenna to spy on Elena and Stefan. After Katherine learns of Mason Lockwood's death, she orders Jenna to commit suicide by stabbing herself, but she survived.
- Caroline Forbes - Katherine turned Caroline into a vampire, and continued to threaten and manipulate her to do her bidding. She ordered Caroline to keep Elena away from Stefan and occupy her for the day so that Katherine could spend time with him.
- Matt Donovan - After learning of Mason's death, Katherine uses her power of compulsion on Matt, ordering him to provoke Tyler Lockwood into killing him, in order to trigger Tyler's werewolf curse. She planned to use him along with Bonnie, Caroline and Elena to hand over to Klaus in exchange for her freedom.
- Sarah - Katherine compelled Sarah to attack Tyler if Matt failed, and when Caroline breaks up Matt and Tyler's fight, Sarah attacks Tyler and he accidentally kills her, triggering the werewolf curse.
Former Powers and Abilities
Some of these powers are more potent when the vampire gets older and feeds on human blood.
- Super Strength - Vampires are much stronger than humans and grow stronger with time. Even new vampires who are still in transition can toss a fully grown human across a room with great speed and force. Their strength is also more powerful then werewolves that are not in wolf form.
- Super Speed - Vampires can accelerate their movements to cover short distances in an instant, faster than the human eye can see. When running across long distances, they appear as vibrating blurs of motion.
- Emotional Control - The supernatural ability to control and manipulate the emotions of one's self.
- Dream Manipulation - Vampires can control dreams and subconscious. The vampires can produce and modify dreams, bestow nightmares or lucid dreaming. Other effects of this ability is the distortion of reality and trapped in the dreams.
- Heightened Senses - They can hear whispered conversations, even ones in far off buildings, smell blood, and see in total darkness.
- Mind Compulsion - Vampires have the ability to control minds, plague people's dreams, and alter/erase human memories.
- Immortality - A vampire stops aging once turned. Upon their transformation, vampires then on become immune to all conventional illness, disease, virus and infection. The only known disease or infection that can kill a vampire is a werewolf bite.
- Healing Factor - Vampires can snap their finger bones back into place after being broken and have been seen to fully recover from gunshots, stab wounds, and torso impalement.
- Lapis Lazuli - She possess a Lapis Lazuli necklace that she later turned into a bracelet that enables her to walk in daylight without being harmed.
- Vervain Immunity - After her plan was almost stopped in 1864 after ingesting vervain in Stefan's blood, Katherine started to ingest vervain every day for over 150 years, causing it to have less of an effect on her than other vampires.
Attitude Toward Humans
Based on what has been shown in the series, Katherine has no regard for human life. To her, humans are a means to an end, whether as victims to feed on or pawns in a plot for personal gain. The notable exceptions to this general disregard are Stefan and Damon Salvatore.
In 1864, Katherine took sadistic pleasure in demonstrating to a human Damon how a vampire lures in a victim by playing the role of a lost woman in order to stop a coach on a deserted road, anticipating the concern this would draw from its passengers. She fed on and killed her victims without any apparent remorse. In the present day, though she has shown no qualms about harming humans, her violence towards them is usually attended by a vague sense of purpose: she chops off John Gilbert's fingers and stabs him as she infiltrates the Gilbert home; she turns Caroline into a vampire as part of her plan to plead amnesty with Klaus; she maims and kills Aimee Bradley to emphasize how badly she wants the moonstone and compels Matt and Sarah to provoke Tyler into killing them; she knocks out Jeremy to use him to get to Mikael; she kills cemetery visitors in order to feed and awaken Mikael; and she kills various people on the island in order to get to the cure.
The only humans that Katherine, as a vampire, has seemed to not view as mere collateral damage were Damon and Stefan, whom she lived with in 1864. Although her relationships with both brothers seem to have had a certain amount of manipulation and scheming involved, Katherine demonstrated both before and immediately after Stefan's transition-death that she genuinely cared for him. Her relationship with Damon does not appear to have had the same depth of such feelings, but she cared enough about him to want to turn him into a vampire. Still, her behavior around the Salvatores was so wrapped up in whatever her ulterior motives happened to be that it's not always clear where the selfish manipulation ended and the genuine affection began.
Katherine's attitude toward vampires does not diverge far from her attitude toward humans; she merely has to be more clever in how she manipulates them. She was willing to sell out those she considers friends, like Pearl and the other vampires in Mystic Falls at the time. She regards werewolves to be little better than humans: she only deals with George Lockwood in order to procure her escape from Mystic Falls in 1864, and uses Mason and Tyler Lockwood in her plan to strike a deal with Klaus. She deals with witches with a bit more wariness, though her arrogance sometimes gets the better of her. Although she apparently lived with Emily Bennett for years and treated her as a confidante, she betrayed her during her escape from the town. Later, Lucy Bennett helps Katherine to repay a debt, but Katherine underestimates the witch's willingness to turn against her after the debt is paid.Like most vampires in the series, Katherine's attitude towards the lives of others has been significantly influenced by the end of her human life and how her vampirism affected her family. She suffered the heartache of being separated from her illegitimate daughter and disowned by her family, and not long after suffered the despair of finding her entire family dead, brutally murdered by Klaus. Any trace of the human girl who still believed in love seemed to evaporate after this last great loss, though it peeks through occasionally when it comes to Stefan.
Overall, Katherine has no respect for anyone's life but her own, and will not spare a life unless it suits her interests to do so. Although she has risked her life in the past to save Damon and Stefan, doing so was in the context of repaying a debt and killing Klaus; it remains untested whether her affection for the brothers could ever truly transcend her sense of self-preservation.
Attitude Towards Vampires
Stefan thinks Katherine is very beautiful, when she first arrives to Mystic Falls, even though he is supposed to be engaged to Rosalyn Cartwright. She and Stefan kissed in the library at the Veritas Estates for the first time. She stays in the carriage house with Emily and she killed Rosalyn out of jealousy. She acts as innocent to avoid being uncovered as a vampire. Katherine was with Damon before Stefan and compelled him to take her secret better. Stefan believed her to have died. He tells Damon that he is wasting away Katherine's gift.
- Katherine is a feminine first name of uncertain origin. It appears to come from the Greek Αικατερινη, meaning "each of the two", or possibly from καθαρος (Katharos) meaning "pure". There are several famous bearers of this name, including Catherine de' Medici and Catherine the Great from Russia. The name is common in English.
- In Slavic-language countries, like Bulgaria, surnames typically take both a masculine and a feminine form. For instance, Katerina Petrova's father would have had the surname Petrov, while she and her mother had the feminine form Petrova.
- Petrov/Petroff (masculine) or Petrova (feminine) is one of the most common surnames in both Russia and Bulgaria. The surname is derived from the first name Pyotr (Пётр, Russian) or Petar (Петър, Bulgarian), both equivalent to the English name Peter. Petrov means "son of Peter" in Russian and Bulgarian.
- Pierce is a medieval form of PETER. This was the name of the main character in the 14th-century poem 'Piers Plowman' by William Langland.
- Katerina, Isobel, Rose, and Klaus are the only characters so far to have an episode named after them.
- Nina Dobrev, the actress who plays Katherine Pierce, was born in Bulgaria and speaks Bulgarian. For this reason, Katherine, who was German in the books, became Bulgarian in the series.
- In the books, Katherine von Swartzschild was a German girl who was a vampire of great beauty and kindness, but at the same time, immature, manipulative and selfish. In the TV series, Katerina Petrova, a.k.a. Katherine Pierce, was a Bulgarian girl who was also of great beauty and kindness, but also self-centered and ruthless after she became a vampire. Katherine Pierce and Katherine Von Swartzschild are both selfish, vain, sadistic and manipulative, and both faked their deaths.
- Katerina Petrova is Bulgarian, but her name and surname are Russian in origin.
- Rose was the vampire responsible for turning Katherine on the TV series. However, Klaus was the one who turned Katherine into a vampire in the novels, completely changing the back stories of Katherine and Klaus for the series. Klaus felt emotion for Katherine, so he wanted to avenge her death in the novels.
- Katherine was a "birthday gift" from Trevor to Klaus in 1492.
- In the TV series, Katherine is much older than in the books. In the books, Katherine was born in 1614 and turned in 1631, whereas in the TV series, she was born in 1473 and turned in 1492.
- Katherine's life is seriously affected by Klaus in the books and the series. In the books, Katherine Von Swartzschild becomes insane, paranoid, unstable, selfish, cruel, and sadistic because of Klaus's influence for centuries. In the series, Katherine Pierce becomes selfish, cruel, manipulative, and sadistic, because her child was taken away from her against her will, and because her family was slaughtered by Klaus.
- Katherine's parents are the first of Klaus' victims to be seen in the TV series.
- When she arrives in Mystic Falls, Katherine claims to be an orphan who lost her family in a fire. She may in fact have burned down her house with her family inside after they were murdered by Klaus, out of respect for them.
- Vanessa Monroe, a research assistant and former student of Isobel, mentions in Bad Moon Rising that Katherine arrived in Mystic Falls in April 1864, but this is inconsistent with Katherine's story that her family perished in the Atlanta campaign fires, which occurred in September of that year.
- Katherine wore a cameo lapis lazuli necklace up until the 1920s at least. This necklace is seen in all 1864 flashbacks as well as the 1920s flashback. After this she wears a different necklace, which she later begins to wear as a bracelet.
- She is the first of three women in her family to have slept with Damon Salvatore. Both of her descendants Isobel Saltzman and Elena Gilbert have also slept with him.
- Many people have fallen in love with or felt attracted to Katherine. Vampires and people like Stefan, Damon, Mason, Trevor and Elijah have been in love with her. Noah was also obsessed with her. It is thought that the Petrova doppelgangers have an uncanny ability to win others affections, especially from men, as evidenced by all of the love triangles the three Petrova women have been involved.
- Others can usually tell Katherine apart from Elena by their hair, make-up and wardrobe choices. (See Physical Appearance.)
- Katherine is quite adept at disguising herself as Elena. She has been mistaken as Elena by Jenna Sommers on many occasions, which resulted in Jenna inviting Katherine into the Gilbert's home and being lured into a trap after receiving a frantic call from "Elena".
- Katherine uses mind compulsion on Jimmy, Matt and Sarah to activate the werewolf curses in first Mason Lockwood and then Tyler Lockwood.
- Despite claiming to know all about The Originals in The House Guest, she did not know that Klaus wanted to become a hybrid, that the dagger and white oak ash would not work on him, or that the curse was fake, until after The Sun Also Rises.
- Katherine is the first vampire shown to be fed on by another vampire.
- She has been absent from Mystic Falls since Homecoming. She comes back in Pictures of You.
- She, Damon, Stefan and Caroline have all been bitten by either a werewolf or a hybrid, but were all healed with Klaus's blood.
- Katherine's remorseless behavior typically suggests that she "turns off" her humanity, but a few of her actions - delivering Klaus's blood to cure Damon, warning Stefan about how dangerous Klaus is and rescuing him from the witch Gloria, alerting Stefan to Klaus's intention to possibly kill Damon - as well as her own admission, have suggested that there are still human feelings within her, whether or not she always lets them affect her.
- It is possible Katherine knows about Tatia, as when Elena asked her in Katerina what the Petrova family has to do with the Klaus, she was familiar with the concept of creating the doppelgänger. However, she has never specifically mentioned the Original Petrova, either by name or other reference.
- She is present in Pictures of You, The Originals, She's Come Undone, The Walking Dead and Graduation, and she plays a role in Bonnie's plan to defeat Silas
- In the Season Four's finale, Elena forced the Cure down Katherine's throat.
- She is the first vampire to be cured of her vampirism.
- She is now technically the oldest living human.
- During her tenure as a main character in Season 2, Katherine is absent from 4 episodes: Brave New World, Rose, The Descent and Crying Wolf.
- A Day in the Limelight - has an episode named after her, plus frequent flashbacks into her origins.
- Briarpatching - Katherine uses this technique on Damon when she tells him not to dagger Elijah as she would be stuck in the tomb forever.
- Magnificant Bastard - "Plan B "