Calificación
Reparto

Richard Denning
Rick

Lori Nelson
Louise Madison

Paul Birch
Jim Madison

Mike Connors
Tony Lamont

Adele Jergens
Ruby

Raymond Hatton
Pete

Paul Dubov
Radek

Jonathan Haze
Contaminated Man

Paul Blaisdell
Mutant

Roger Corman
Nelson - Louise's Fiancée in Framed Photograph (uncredited)

Chet Huntley
Narrator (voice) (uncredited)