الإعلان التشويقي
طاقم التمثيل
John Dilson
Medical Examiner
Douglas Evans
Police Radio Announcer (uncredited)
Frank O'Connor
Detective
Russell Hicks
Warden Harris (uncredited)
Anne Nagel
June Lawrence
Ben Taggart
Detective Sergeant Regan
Ivan Miller
Doctor
Chester Gan
Chinese Boy, Wong
George Meader
Dr. Bruno
Bob Reeves
Prison Guard (uncredited)
Lon Chaney Jr.
Dan McCormick
Byron Foulger
Alienist #2
William Hall
Mike - Dynamo Operator (uncredited)
William B. Davidson
District Attorney Ralph B. Stanley
Constance Bergen
Nurse
James Blaine
Charlie, Prison Guard (uncredited)
Lionel Atwill
Dr. Paul Rigas
Frank Albertson
Mark Adams
David Sharpe
Hay Wagon Passenger (uncredited)
Samuel S. Hinds
Dr. John Lawrence
Jessie Arnold
Mrs. Frank Davis (uncredited)