Jimmy Neutron: Boy Genius

Debi Derryberry James 'Jimmy' Isaac Neutron (voice)

Megan Cavanagh Judy Neutron / VOX (voice)

Mark DeCarlo Hugh Neutron / Pilot / Arena Guard (voice)

Jeffrey Garcia Sheen Estevez (voice)

Patrick Stewart King Goobot V (voice)

Martin Short Ooblar (voice)

Frank Welker Goddard / Poultra (voice)

Rob Paulsen Carl Wheezer / Mr. and Mrs. Wheezer / Kid in Classroom (voice)

Carolyn Lawrence Cindy Vortex (voice)

Crystal Scales Libby Folfax (voice)

Candi Milo Nick Dean / Britney / PJ (voice)

David L. Lander Yokian Guard / Gus (voice)