Ruth Roman
Ann Hemple Nicholson
Sterling Hayden
John Emmett
Werner Klemperer
Dr. Frederick Simmons
Richard Gaines
Dean William Brant
Charles Davis
Edward Manning Kirkpatrick aka Kirk
Jeanne Cooper
Helen Bethke
Peter Hansen
Karl Plesser
Karl Ludwig Lindt
Dr. Reinhart Kissel
John Mitchum
Bud--Deputy Sheriff
John Frederick
Sheriff
Leonard Bremen
Collision Shop Owner (uncredited)
Sidney Clute
Mechanic (uncredited)
Ken Curtis
FBI Agent Jim Anderson (uncredited)
Harry Hines
Motel Owner (uncredited)
Tom McKee
Man from Sanitarium (uncredited)
Bert Stevens
Motorcycle Cop (uncredited)
Crew
Henry S. Kesler
Producer
Donald Hamilton
Novel
Henry S. Kesler
Director
Kenneth Peach
Director of Photography
Bert Shefter
Original Music Composer
Paul Sawtell
Original Music Composer
Aaron Stell
Editor
Henry S. Kesler
Screenplay
Francis J. Scheid
Sound
Donald Hamilton
Story
Adele Parmenter
Wardrobe Designer
Horace Hough
Assistant Director
Ralph E. Black
Production Supervisor
James Richard
Sound Editor
Einar Bourman
Wardrobe Designer
Turnley Walker
Story
Adele Parmenter
Costume Design
Einar Bourman
Costume Design
Betty Pagel
Casting
Rudi Feld
Art Direction
Herman N. Schoenbrun
Set Decoration