All Cast

Debi Derryberry

Debi Derryberry

James 'Jimmy' Isaac Neutron (voice)

Megan Cavanagh

Megan Cavanagh

Judy Neutron / VOX (voice)

Mark DeCarlo

Mark DeCarlo

Hugh Neutron / Pilot / Arena Guard (voice)

Jeffrey Garcia

Jeffrey Garcia

Sheen Estevez (voice)

Patrick Stewart

Patrick Stewart

King Goobot V (voice)

Martin Short

Martin Short

Ooblar (voice)

Frank Welker

Frank Welker

Goddard / Poultra (voice)

Rob Paulsen

Rob Paulsen

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

Carolyn Lawrence

Carolyn Lawrence

Cindy Vortex (voice)

Crystal Scales

Crystal Scales

Libby Folfax (voice)

Candi Milo

Candi Milo

Nick Dean / Britney / PJ (voice)

David L. Lander

David L. Lander

Yokian Guard / Gus (voice)

Carlos Alazraqui

Carlos Alazraqui

Mr. Estevez (voice)

Jim Cummings

Jim Cummings

Ultra Lord / Mission Control / General Bob (voice)

Keith Alcorn

Keith Alcorn

Bobby / Kid / Control Yokian (voice)

Kimberly Brooks

Kimberly Brooks

Zachary / Reporter / Angie / Libby's Mom (voice)

Andrea Martin

Andrea Martin

Ms. Winfred Fowl (voice)

Billy West

Billy West

Bobby's Twin Brother (voice) / Butch (voice) / Jailbreak Cop (voice) / Old Man Johnson (voice) / Robobarber (voice) / Flurp Announcer (voice) / Yokian Officer (voice) / Anchor Boy (voice) / Guard (voice)

Mary Hart

Mary Hart

Yokian Newscaster #2 (voice)

Bob Goen

Bob Goen

Yokian Newscaster #1 (voice)

Dee Bradley Baker

Dee Bradley Baker

Norad Officer (voice)

Laraine Newman

Laraine Newman

Hostess (voice)

John A. Davis

John A. Davis

Octapuke Kid / Guard / Bennie (voice)

Paul Greenberg

Paul Greenberg

Guard (voice)

Mark Menza

Mark Menza

Yokian Incubator Operator (voice)

Jeannie Elias

Jeannie Elias

Little Girl / Camera Person (voice)

Michael Hagiwara

Michael Hagiwara

Chris (voice)

Richard Allen

Richard Allen

Digital Voice (voice)

Brian Capshaw

Brian Capshaw

Screamer (voice)

Cheryl Ray

Cheryl Ray

Screamer (voice)

Matthew Russell

Matthew Russell

Hyperactive Kid / Arena Yokian (voice)