Buffy the Vampire Slayer
Angel (played by David Boreanaz) was an Irish vampire first named Liam. He was born in 1727, in Galway, Ireland. After being turned into a vampire in 1753, he spent the next 145 year creating terror as "Angelus" (face of an angel). In 1898, he killed the daughter of gypsies. As punishment, the Gypsies returned Angelus human soul to him. This caused him to have to feel all the pain he had caused. Angel went to the United States and lived on the streets. He stopped killing people to drink their blood because with a soul he knew it was wrong. He lived a very poor life drinking the blood of rats until a messenger from the Powers That Be took him to California to show him Buffy. He fell in love with her and changed his life so he could help her. Buffy fell in love with Angel but he turned evil after she gave him one true moment of happiness (after they had sex). Then he turned into Angelus and when he was finally changed back (after months, by Willow), Buffy stabbed him in order to once again save the world by closing acaphla (against her feelings of love for him).