Anime/The Grim Adventures of Billy & Mandy

Cast

 * Orochimaru (from Pokemon) as Grim
 * Ash Ketchum (from Pokemon) as Billy
 * May (from Pokemon) as Mandy
 * Jessie (from Pokemon) as Eris
 * Miroku (from Inuyasha) as Dick
 * Kagome (from Inuyasha) as Kagome
 * Naruto (from Naruto) as Irwin
 * Misty (from Pokemon) as Claire
 * and more