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