Angel (season 1)
At the end of the third season of "Buffy", the 242-year-old, re-ensouled vampire Angel left Sunnydale to give teenage Slayer Buffy Summers the chance to live a normal life. Angel is now living in the big city of Los Angeles. With Buffy gone Angel is now completely cut off from society, every day getting closer and closer to giving in to his vampiric hunger. It's not until he befriends the half demon and fellow Irishman Doyle, who is sent visions of people in trouble by The Powers That Be, and fellow Sunnydale resident Cordelia Chase, who grounds Angel's life in the humanity around him, that he truly begins to take charge of his life and seek atonement for his past sins. He sets up his own detective agency, Angel Investigations and begins to "help the helpless".
Cordelia Chase
Cordelia is introduced in "Welcome to the Hellmouth" as one of Sunnydale High's popular cheerleaders, attending school alongside vampire slayer Buffy Summers. Through her interactions with Buffy and her friends, she comes to accept the existence of supernatural forces and helps Buffy fight against them. In the television series "Angel", Cordelia joins Angel, a heroic vampire with a soul, in forming a detective agency dedicated to stopping supernatural forces and helping the helpless. After Cordelia acquires the ability to see visions of those in need, she becomes a more compassionate and heroic character. In the middle of the third season, she becomes a love interest of the protagonist Angel. In the fourth season of "Angel", she appears to take on a villainous role before it is revealed that she is possessed by a malevolent deity; this storyline eventually leads to her death and subsequent exit from the series. The character makes further canonical appearances in the comic books "Buffy Season Eight" and "", in a dream flashback and as a spirit guide.