Credits
Cast

Gene Barry
Jonathan Clark

Valerie French
Eve Wingate

George Voskovec
Prof. Klaus Bechner

Azemat Janti
Ivan Godofsky

Stefan Schnabel
The Soviet General

Friedrich von Ledebur
Dr. Karl Neuhaus

Ralph Clanton
Mr Ingram

Arnold Moss
The Alien
Monty Ash
Soviet Prison Physician

Theo Marcuse
Soviet Col. Gregor

Paul Birch
Admiral

Paul Frees
Radio Newscaster Ward Mason
Marie Tsien
Su Tan
Charles Bennett
Gorki

John Bleifer
Spokesman
Irvin Ashkenazy
2nd Man

David Bond
Dr. Schmidt

Philip Van Zandt
Taxi Driver

Mel Welles
Russian Marshal
Peter Norman
Interrogator
Art
Ross Bellah
Art Direction
Frank Tuttle
Set Decoration
Camera
Henry Freulich
Director of Photography
Crew
Will Sheldon
Second Unit

Ray Harryhausen
Special Effects
Directing

William Asher
Director
Editing
Jerome Thoms
Editor
Production
Lewis J. Rachmil
Executive Producer

Helen Ainsworth
Producer
Sound
Mischa Bakaleinikoff
Original Music Composer
Ferrol Redd
Sound Director
Writing
John Mantley
Screenplay, Novel