Full Credits
19 members

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)
28 members
Kurt Neumann
Director
Kathleen Fagan
Script Supervisor
Jack Gertsman
Assistant Director
James Clavell
Screenplay
George Langelaan
Short Story
Robert L. Lippert
Producer
Kurt Neumann
Producer
Karl Struss
Director of Photography
Paul Sawtell
Original Music Composer
Eugene Grossman
Sound
Harry M. Leonard
Sound
Don Isaacs
Sound Editor
Dick Jensen
Sound Editor
Bernhard Kaun
Conductor
Theobold Holsopple
Art Direction
Lyle R. Wheeler
Art Direction
Eli Benneche
Set Decoration
Walter M. Scott
Set Decoration
Wayne Fitzgerald
Title Designer
Ben Nye
Makeup Artist
Adele Balkan
Costume Design
Helen Turpin
Hairstylist
L.B. Abbott
Visual Effects
Merrill G. White
Editor
Orven Schanzer
Assistant Editor
James B. Gordon
Special Effects
Clarence Marks
Dialogue Coach
Earl Gilbert
Lighting Technician