Ulfreth

 was a change demon that inhabited the Hellmouth.

Biography
In 2019, Ulfreth attempted to feed from the fear of Buffy Summers and Angel after they entered Sunnydale's activated Hellmouth. It dragged the vampire into a hole and gave him visions of Helen Chou, Francis, Julie, and Brewster, who Angel described as "friends I couldn't save".

Buffy went after him into the hole and had visions of Joyce, Xander, and Willow, but the Slayer was able to regain control by punching one of the figures and leaving it unconscious. While Ulfreth attempted to control them, it had talked about the unknown Angel being the vessel and Buffy sacrificing herself with blood.

Appearances

 * Hellmouth, Part Two