The Grim Adventures of Billy & Mandy/Jimmy Neutron

Cast

 * Irwin as Jimmy Neutron
 * Stan Marsh (From South Park) as Carl Wheezer
 * Billy as Sheen Estevez (both are dumb)
 * Mandy as Cindy Vortex
 * Mindy as Libby
 * Gladys as Judy Neutron
 * Harold as Hugh Neutron
 * Grim as King Goobat V
 * The Wasp#1 (From Maya the Bee) as Ooblar