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