All Grown Up/Jimmy Neutron

Cast

 * Tommy as Jimmy Neutron
 * Chuckie as Carl Wheezer
 * Dil as Sheen Estevez
 * Angelica as Cindy Vortex
 * Susie as Libby Folfax
 * Larry (from SpongeBob) as Nick Dean
 * Squilliam (from SpongeBob) as Eustace Strych
 * Stu as Hugh Neutron
 * Didi as Judy Neutron
 * Spike as Goddard
 * more ideas?