 Aside from the title character, over a dozen characters that  originated on "Buffy the Vampire Slayer" crossed over to this show,  including Cordelia, Spike, Oz, Buffy, Wesley, Faith, Darla, the  Master (in flashbacks), Drusilla, Chantarelle (a.k.a. Lilly or  Anne), Harmony, Willow, Angelus (whom this show indicates is a  separate entity from Angel) and Andrew. No character that originated  on "Angel" ever appeared on "Buffy."