James Avery

Gor-illa (voice)

Karen Maruyama

Shao Lin (voice)

Jerry Doyle

Captain Simian (voice)

Dom Irrera

Spydor (voice)

Maurice LaMarche

Dr. Splitz/Splitzy (voice)

Jeff Bennett

Orbitron (voice)

Michael Dorn

Nebula (voice)

Malcolm McDowell

Rhesus 2 (voice)

David Carradine

Mandrax (voice)

Oliver Muirhead

The " " (voice)

Frank Welker

Apax (voice)

Ellen Gerstell

Doctor Kleb (voice)

René Auberjonois

Gardener / Alien Gladioluses (voice)

Jerry Houser

Larnus / Tronus (voice)

Tress MacNeille

Vel-Dar (voice)

Gordon Bressack