Hugh Maddox
Jimmy Clark (as Michael Road)
Russ Novack
Ship's Captain (uncredited)
Spaceman (uncredited)
Prosecutor
Dans Forth
Politician (uncredited)
Boy with Toddy (uncredited)
Race Bannon (voice)
Tony Millionaire
Ugh (voice)
Zandor
Ab
Brad Capo
Zandor / Tundro / Zok / ... (voice)
Marshal Tom Sellers
Ed Graham
Mr. Fantastic (voice)
Joe Merchant
Go-Go Ravine / Trainer / Guy #2 / Chauffeur (voice)