Buffy, Xander, and Willow have all had relationships with vampire slayers.
1. Katie Holmes and Ryan Reynolds were almost cast as Buffy Summers and Xander Harris. Holmes declined because she wanted to attend high school, while Reynolds didn't want to be "the guy from high school."
2. Sarah Michelle Gellar originally auditioned for the role of Cordelia, while Charisma Carpenter auditioned for the title role of Buffy. Nathan Fillion auditioned for the role of Angel and Danny Strong auditioned for the role of Xander.
3. Several other actresses auditioned for the role of Buffy but were later cast in different roles, including Julie Benz, Elizabeth Anne Allen, Mercedes Mcnab, and Julie Lee.