James Isaac 'Jimmy' Neutron / Nissa (voice)
Judy Neutron / Vox (voice)
Hugh Neutron / Yokian Waiter (voice)
Carl Wheezer / Principal Willoughby / Butch / Yokian (voice)
Sheen Estevez (voice)
Cindy Vortex (voice)
Libby Fallfax (voice)
Miss Fowl (voice)
Nick Dean / Woman #1 (voice)
Sam / Benny / Man #1 (voice)
King Goobot / Yokian / Man #2 / Alarm (voice)
Ooblar / Yokian Waiter (voice)
Goddard / Poultra (voice)
