David Hedison
Andre Delambre
David Hedison
Andre Delambre
Patricia Owens
Helene Delambre
Vincent Price
François Delambre
Herbert Marshall
Insp. Charas
Kathleen Freeman
Emma
Betty Lou Gerson
Nurse Andersone
Charles Herbert
Philippe Delambre
Eugene Borden
Dr. Ejoute (uncredited)
George Calliga
Club Member (uncredited)
Harry Carter
Orderly (uncredited)
Bill Clark
Policeman (uncredited)
Arthur Dulac
French Waiter (uncredited)
Bess Flowers
Audience Member (uncredited)
Herschel Graham
Club Member (uncredited)
Torben Meyer
Gaston (uncredited)
Sol Murgi
Audience Member (uncredited)
George Nardelli
Detective (uncredited)
Franz Roehn
Police Doctor (uncredited)
Charles Tannen
Doctor (uncredited)
Kurt Neumann
Director
Paul Sawtell
Original Music Composer
Merrill G. White
Editor
Robert L. Lippert
Producer
Karl Struss
Director of Photography
James Clavell
Screenplay
Kurt Neumann
Producer
George Langelaan
Story
Theobold Holsopple
Art Direction
Lyle R. Wheeler
Art Direction
Eli Benneche
Set Decoration
Don Isaacs
Sound Editor
Ben Nye
Makeup Artist
Walter M. Scott
Set Decoration
L.B. Abbott
Visual Effects
Eugene Grossman
Sound
Dick Jensen
Sound Editor
Harry M. Leonard
Sound
Kathleen Fagan
Script Supervisor
Wayne Fitzgerald
Title Designer
Clarence Marks
Dialogue Coach
Orven Schanzer
Assistant Editor
Earl Gilbert
Lighting Technician
Adele Balkan
Costume Design
Helen Turpin
Hairstylist
Bernhard Kaun
Conductor
James B. Gordon
Special Effects
Jack Gertsman
Assistant Director