If you guys watch the show you will understand this.
Buffy Ă— Kat
Anya Ă— Lynne
Willow Ă— Little Mo
Cordelia Ă— Belinda
Dawn Ă— Zoe
Faith Ă— Hayley
Ashley Tisdale Ă— Stacey
These are the character that I feel that are parallel to the Slater. I chose Ashley Tisdale because she looks like Buffy and Lacey Turner was cast as Stacey because she looked like Kat