Angel
Angel is a famous vampire legendary for both his villainy and heroism. Born Liam in 1727 in Galway, Ireland, he was sired by Darla in 1753 and became known as Angelus, earning notoriety for being one of the most sadistic and brutal demons in history. Both The Master and the First Evil recognized how purely evil Angelus was. However, in 1898, Angelus was cursed by gypsies as vengeance for killing a member of their clan. They returned his soul, forcing him to live for eternity in guilt over the countless crimes he committed. In the late 20th century, Angel, as he began calling himself, became an ally and lover of the current Slayer, Buffy Summers. Realizing they could never be together, Angel left Buffy and moved to Los Angeles, where he became a Champion of the Powers That Be and dedicated himself to "helping the helpless" in the hopes of achieving attonement.