Lon Chaney Jr.
Dan McCormick
Acting
Lionel Atwill
Dr. Paul Rigas
Acting
Anne Nagel
June Lawrence
Acting
Frank Albertson
Mark Adams
Acting
Samuel S. Hinds
Dr. John Lawrence
Acting
William B. Davidson
District Attorney Ralph B. Stanley
Acting
Ben Taggart
Detective Sergeant Regan
Acting
Constance Bergen
Nurse
Acting
Ivan Miller
Doctor
Acting
Chester Gan
Chinese Boy, Wong
Acting
George Meader
Dr. Bruno
Acting
Frank O'Connor
Detective
Acting
John Dilson
Medical Examiner
Acting
Byron Foulger
Alienist #2
Acting
Jessie Arnold
Mrs. Frank Davis (uncredited)
Acting
James Blaine
Charlie, Prison Guard (uncredited)
Acting
Gary Breckner
Radio Announcer (uncredited)
Acting
Lowell Drew
Jury Foreman (uncredited)
Acting
John Ellis
Assistant District Attorney (uncredited)
Acting
Douglas Evans
Police Radio Announcer (uncredited)
Acting
Jack Gardner
Reporter (uncredited)
Acting
William Hall
Mike - Dynamo Operator (uncredited)
Acting
Russell Hicks
Warden Harris (uncredited)
Acting
Wright Kramer
Judge (uncredited)
Acting
Tom Quinn
Detective (uncredited)
Acting
Bob Reeves
Prison Guard (uncredited)
Acting
Mel Ruick
Defense Attorney (uncredited)
Acting
Francis Sayles
Frank Davis (uncredited)
Acting
Paul Scott
Prison Chaplain (uncredited)
Acting
David Sharpe
Hay Wagon Passenger (uncredited)
Acting
Victor Zimmerman
Dynamo Operator #2 (uncredited)
Acting
Corky
Corky the Dog (uncredited)
Acting