Richard Denning
Rick
Acting
Lori Nelson
Louise Madison
Acting
Paul Birch
Jim Madison
Acting
Mike Connors
Tony Lamont
Acting
Adele Jergens
Ruby
Acting
Raymond Hatton
Pete
Acting
Paul Dubov
Radek
Acting
Jonathan Haze
Contaminated Man
Acting
Paul Blaisdell
Mutant
Visual Effects
Roger Corman
Nelson - Louise's Fiancée in Framed Photograph (uncredited)
Production
Chet Huntley
Narrator (voice) (uncredited)
Acting