Rex Reason
饰 Dr. Cal Meacham
Faith Domergue
饰 Dr. Ruth Adams
Robert Nichols
饰 Joe Wilson
Russell Johnson
饰 Steve Carlson
Douglas Spencer
饰 The Monitor of Metaluna
Karl Ludwig Lindt
饰 Dr. Adolph Engelborg
Regis Parton
饰 Mutant (uncredited)
Richard Deacon
饰 Pilot (uncredited)
Coleman Francis
饰 Express Deliveryman (uncredited)
罗伯特·B·威廉姆斯
饰 Webb (uncredited)
Charlotte Alpert
饰 Metaluna Woman at Decompression Console (uncredited)
Spencer Chan
饰 Dr. Hu Ling Tang (uncredited)
Lizalotta Valesca
饰 Dr. Marie Pitchner (uncredited)
