A cartoon version of the WB's Buffy the Vampire Slayer is being developed at Fox Kids Network and could debut as early as February 2002, USA Today reports. The new series — created and executive produced by Buffy mastermind Joss Whedon — will find the Scooby gang back in high school. "When making the primetime version, the cast aged so quickly, they got out of high school so fast, that [Joss] never got a chance to do more high school stories," explains Fox Kids exec Maureen Smith. It's unclear whether Buffy's live-action cast will supply the voices for their cartoon counterparts.