Director
Joseph M. Newman
DIRECTOR
Jack Arnold
Writer
Franklin Coen
WRITER
George Callahan
Stars (in credits order)
Jeff Morrow
Exeter
Faith Domergue
Dr. Ruth Adams
Rex Reason
Dr. Cal Meacham
Lance Fuller
Brack
Russell Johnson
Dr. Steve Carlson
Douglas Spencer
The Monitor
Robert Nichols
Joe Wilson
Karl Ludwig Lindt
Dr. Adolph Engelborg
Charlotte Alpert
Metaluna Woman at Decompression Console (uncredited)
Jack Byron
Photographer (uncredited)
Spencer Chan
Dr. Hu Ling Tang (uncredited)
Richard Deacon
Pilot (uncredited)
Coleman Francis
Express Deliveryman (uncredited)
Marc Hamilton
Metaluna Inhabitant (uncredited)
Edward Hearn
Reporter (uncredited)
Edward Ingram
Orangey
Neutron--Cat (uncredited)
Regis Parton
Mutant (uncredited)
Manuel París
Dinner Guest (uncredited)
Olan Soule
First Reporter (uncredited)
Les Spears
Lizalotta Valesca
Dr. Marie Pitchner (uncredited)
Robert Williams
Webb (uncredited)
