Produced and Directed by Kurt Neumann
Story by George Langelaan
Written by James Clavell
Cinematography by Karl Struss
Film Editing by Merrill G. White
Music by Paul Sawtell
Special Photographic Effects : L.B. Abbott
Special Effects : James B. Gordon
Makeup Artist : Ben Nye
Art Director : Theobold Holsopple, Lyle R. Wheeler
Set Decoration : Eli Benneche, Walter M. Scott
Costume Design by Adele Balkan
Executive Wardrobe Designer : Charles LeMaire
Assistant Director : Jack Gertsman
Cast
Al Hedison (Andre Delambre)
Patricia Owens (Helene Delambre)
Vincent Price (Francois Delambre)
Herbert Marshall (Inspector Charas)
Kathleen Freeman (Emma)
Betty Lou Gerson (Nurse Andersone)
Charles Herbert (Philippe Delambre)
Eugene Borden (Dr. Ejoute)
Harry Carter (Orderly)
Arthur Dulac (French Waiter)
Torben Meyer (Gaston)
Franz Roehn (Police Doctor)
Charles Tannen (Doctor)