Lon Chaney Jr.
Dan McCormick
Lionel Atwill
Dr. Paul Rigas
Anne Nagel
June Lawrence
Frank Albertson
Mark Adams
Samuel S. Hinds
Dr. John Lawrence
William B. Davidson
District Attorney Ralph B. Stanley
Ben Taggart
Detective Sergeant Regan
Constance Bergen
Nurse
Ivan Miller
Doctor
Chester Gan
Chinese Boy, Wong
George Meader
Dr. Bruno
Frank O'Connor
Detective
John Dilson
Medical Examiner
Byron Foulger
Alienist #2
Jessie Arnold
Mrs. Frank Davis (uncredited)
James Blaine
Charlie, Prison Guard (uncredited)
المخرج
George Waggner
الكتّاب
Harry Essex، George Waggner، Len Golos
الموسيقى
Charles Henderson، Frank Skinner، Hans J. Salter
التصوير
Elwood Bredell
المونتاج
Arthur Hilton
Universal Pictures
