Joe Alaskey
Duck Dodgers / The Martian Commander (voice) (67 eps)
Bob Bergen
The Eager Young Space Cadet (voice) (67 eps)
Richard McGonagle
Dr. I.Q. Hi (voice) (67 eps)
Tia Carrere
The Martian Queen (voice) (67 eps)
Michael Dorn
Centurion Robot (voice) (67 eps)
Mako
Happy Cat (voice) (3 eps)
Henry Winkler
Dr. Maniac (voice) (2 eps)
Dave Mustaine
Himself (voice) (2 eps)
Grey DeLisle
Catapoid (voice) (2 eps)
Loni Anderson
Herself (voice) (1 eps)
Amy Brassette
Jamie Wynters (voice) (1 eps)
Tom Jones
Tom Jones (voice) (1 eps)
Kelly Ripa
The New Cadet (voice) (1 eps)
Macy Gray
Lady Chanticleer (voice) (1 eps)
Brian Wilson
Brian Wilson (voice) (1 eps)
Genndy Tartakovsky
Cyber Pirate of the Future (voice) (1 eps)
Tim Curry
Magnificent Rogue (voice) (1 eps)
Lewis Black
Manobrain (voice) (1 eps)
Quentin Tarantino
Master Moloch (voice) (1 eps)
Burt Reynolds
Royal Serpenti (voice) (1 eps)
Marc Singer
Kirk Manlord (voice) (1 eps)
Jim Cummings
Tazmanian Devil / Father (voice) (1 eps)
John O'Hurley
Star Johnson (voice) (1 eps)
Candi Milo
Rikki Roundhouse (voice) (1 eps)