Mayhem reigns supreme in the animated kingdom as whiz kid Jimmy Neutron and Timmy from "The Fairly Oddparents" swap places in each other's worlds.
Mark DeCarlo
Hugh Neutron (voice)
Rob Paulsen
Carl Wheezer / Announcer (voice)
Jeffrey Garcia
Sheen Estevez (voice)
Carolyn Lawrence
Cindy Vortex (voice)
Crystal Scales
Libby Folfax (voice)
Frank Welker
Goddard (voice)
Susanne Blakeslee
Wanda (voice)
Daran Norris
Cosmo / Dad / Jorgen Von Strangle (voice)
Grey DeLisle
Vicky / Principal Waxelplax (voice)
