Cordelia Chase (Charisma Carpenter)Cordelia Chase is a student at Sunnydale High School. She is wealthy, beautiful, entitled, and very fashionable. She is your typical mean girl, a cheeleader and the leader of the popular clique. She is, however, no dummy, but in fact an excellent student. She is not above using her feminine wiles to get her way. She constantly torments other students she perceives as inferior including nerdy bookworm Willow Rosenberg and her best friend Xander Harris.When Buffy Summers first arrives at Sunnydale High, Cordelia is welcoming but soon changes her tune and makes sure Buffy becomes a social outcast at the school.As most Sunnydale students do Cordelia keeps finding herself in life-threatening situations and is saved by Buffy. She soon learns the secret of the Slayer and the Hellmouth and becomes a reluctant member of the Scooby Gang, with Buffy, Willow, Xander, and librarian Rupert Giles, who is actually Buffy's Watcher.