Jimmy Neutron: Boy Genius— Full Cast

Debi Derryberry

as James 'Jimmy' Isaac Neutron (voice)

Megan Cavanagh

as Judy Neutron / VOX (voice)

Mark DeCarlo

as Hugh Neutron / Pilot / Arena Guard (voice)

Jeffrey Garcia

as Sheen Estevez (voice)

Patrick Stewart

as King Goobot V (voice)

Martin Short

as Ooblar (voice)

Frank Welker

as Goddard / Poultra (voice)

Rob Paulsen

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

Carolyn Lawrence

as Cindy Vortex (voice)

Crystal Scales

as Libby Folfax (voice)

Candi Milo

as Nick Dean / Britney / PJ (voice)

David L. Lander

as Yokian Guard / Gus (voice)

Carlos Alazraqui

as Mr. Estevez (voice)

Jim Cummings

as Ultra Lord / Mission Control / General Bob (voice)

Keith Alcorn

as Bobby / Kid / Control Yokian (voice)