Full Credits
32 members

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)
Gary Breckner
Radio Announcer (uncredited)
Lowell Drew
Jury Foreman (uncredited)
John Ellis
Assistant District Attorney (uncredited)

Douglas Evans
Police Radio Announcer (uncredited)
Jack Gardner
Reporter (uncredited)

William Hall
Mike - Dynamo Operator (uncredited)

Russell Hicks
Warden Harris (uncredited)
Wright Kramer
Judge (uncredited)
Tom Quinn
Detective (uncredited)

Bob Reeves
Prison Guard (uncredited)
Mel Ruick
Defense Attorney (uncredited)
Francis Sayles
Frank Davis (uncredited)
Paul Scott
Prison Chaplain (uncredited)

David Sharpe
Hay Wagon Passenger (uncredited)
Victor Zimmerman
Dynamo Operator #2 (uncredited)
Corky
Corky the Dog (uncredited)
23 members
George Waggner
Director
Harry Essex
Story
Sid Schwartz
Story
George Waggner
Screenplay
Len Golos
Story
Jack Bernhard
Associate Producer
Elwood Bredell
Director of Photography
Charles Henderson
Music
Frank Skinner
Music
Hans J. Salter
Music Director
Bernard B. Brown
Sound Supervisor
Charles Previn
Orchestrator
Hans J. Salter
Original Music Composer
Charles Carroll
Sound
Harold H. MacArthur
Art Direction
Jack Otterson
Art Direction
Russell A. Gausman
Set Decoration
Vera West
Costume Design
Jack Pierce
Makeup Artist
Arthur Hilton
Editor
David Sharpe
Stunts
Eric Wybrow
Technical Supervisor
John P. Fulton
Special Effects