Debi Derryberry
в ролята на James 'Jimmy' Isaac Neutron (voice)
Megan Cavanagh
в ролята на Judy Neutron (voice) / VOX (voice)
Mark DeCarlo
в ролята на Hugh Neutron (voice)
Jeffrey Garcia
в ролята на Sheen Estevez (voice)
Patrick Stewart
в ролята на King Goobot V (voice)
Martin Short
в ролята на Ooblar (voice)
Frank Welker
в ролята на Goddard (voice) / Poultra (voice)
Rob Paulsen
в ролята на Carl Wheezer (voice) / Mr. Wheezer (voice) / Mrs. Wheezer (voice) / Kid in Classroom (voice)
Carolyn Lawrence
в ролята на Cindy Vortex (voice)
Crystal Scales
в ролята на Libby Folfax (voice)
Candi Milo
в ролята на Nick Dean (voice) / Britney (voice) / PJ (voice)
David L. Lander
в ролята на Yokian Guard (voice) / Gus (voice)
Carlos Alazraqui
в ролята на Mr. Estevez (voice)
Jim Cummings
в ролята на Ultra Lord (voice) / Mission Control (voice) / General Bob (voice)
Keith Alcorn
в ролята на Bobby (voice) / Kid (voice) / Control Yokian (voice)
Kimberly Brooks
в ролята на Zachary (voice) / Reporter (voice) / Angie (voice) / Libby's Mom (voice)
Andrea Martin
в ролята на Ms. Winfred Fowl (voice)
Billy West
в ролята на 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)
Bob Goen
в ролята на Yokian Newscaster #1
Mary Hart
в ролята на Yokian Newscaster #2 (voice)
Bob Goen
в ролята на Yokian Newscaster #1 (voice)
Dee Bradley Baker
в ролята на Norad Officer (voice)
Greg Eagles
в ролята на Libby's Dad (voice)
Jack Angel
в ролята на Additional Voices (voice)
Laraine Newman
в ролята на Hostess (voice)
Gregg Berger
в ролята на Additional Voices (voice)
Mickie McGowan
в ролята на Additional Voices (voice)
Phil Proctor
в ролята на Additional Voices (voice)
