|“||We are but five men. Bound by fire in the last breath of a dying witch to a single cause; the destruction of all vampires.||”|
— Alexander on The Witch in The Five (flashback)
The Witch of The Five was a witch who lived in the late 11th to early 12th century. She created the Brotherhood of the Five by casting the spell on the warrior Alexander and his four brothers that gave them their Hunter's Mark and their supernatural abilities (enhanced strength and agility, along with an immunity to vampire compulsion, immortal psychic powers, and other magical mental manipulation such as Passenger spells). According to one of the order's original members, Alexander, she created the brotherhood with her dying breath, suggesting that she died shortly after the spell was cast. 
The Witch of The Five was a member of the Bennett Family.
During the 12th century, the Witch of the Five wanted to fulfill her ancestor Qetsiyah's ultimate goal of curing and killing the immortal Silas so Qetsiyah could punish him by trapping him with her on the Other Side for eternity. So, to complete this mission, the witch found five brothers and bound them together with a spell, thereby creating the Brotherhood of the Five and entrusting them with the mission of killing Silas and slaying vampires. She died shortly after she performed the spell that bound them together, presumably due to overuse of magic and/or illnesses related to her old age.
- The Five (Flashback)
The Witch had long, frizzy black hair with some grayish streaks through it, medium-brown skin, and brown eyes. She appeared to dress in the typical style of a common woman in the early Middle Ages.
- Since the Other Side has been destroyed, she most likely found peace or was sucked into oblivion.
- The witch appeared to be quite powerful, as she managed to find a magical way to shield the Five from Silas' psychic powers, which was something that not even Qetsiyah was capable of doing without incapacitating Silas himself in some way. Her hunters were also immune to vampiric compulsion, as well as Passenger spells cast by the Travelers.