Lionel Atwill

Dr. Paul Rigas

Lon Chaney Jr.

Dan McCormick

Russell Hicks

Warden Harris

Samuel S. Hinds

Dr. John Lawrence

Anne Nagel

June Lawrence

Frank Albertson

Mark Adams

William B. Davidson

District Attorney Ralph B. Stanley

Chester Gan

Chinese Boy, Wong

Lionel Atwill

Dr. Paul Rigas

Lon Chaney Jr.

Dan McCormick

Russell Hicks

Warden Harris

Samuel S. Hinds

Dr. John Lawrence

Anne Nagel

June Lawrence

Frank Albertson

Mark Adams

William B. Davidson

District Attorney Ralph B. Stanley

Chester Gan

Chinese Boy, Wong

David Sharpe

Hay Wagon Passenger

Douglas Evans

Police Radio Announcer

William Hall

Mike - Dynamo Operator

Bob Reeves

Prison Guard

Ivan Miller

Doctor

Jack Gardner

Reporter

Frank O'Connor

Detective

Francis Sayles

Frank Davis

Victor Zimmerman

Dynamo Operator #2

Ben Taggart

Detective Sergeant Regan

Tom Quinn

Detective

George Meader

Dr. Bruno

John Dilson

Medical Examiner

Gary Breckner

Radio Announcer

Mel Ruick

Defense Attorney

Constance Bergen

Nurse

Jessie Arnold

Mrs. Frank Davis

James Blaine

Charlie, Prison Guard

Wright Kramer

Judge

Lowell Drew

Jury Foreman

Assistant District Attorney

Paul Scott

Prison Chaplain

Arthur Hilton

Editor

Russell A. Gausman

Set Decoration

Jack Otterson

Art Direction

Vera West

Costume Design

Jack P. Pierce

Makeup Artist

George Waggner

Director

George Waggner

Screenplay

Hans J. Salter

Original Music Composer

Arthur Hilton

Editor

Russell A. Gausman

Set Decoration

Jack Otterson

Art Direction

Vera West

Costume Design

Jack P. Pierce

Makeup Artist

George Waggner

Director

George Waggner

Screenplay

Hans J. Salter

Original Music Composer

Harry Essex

Story

Jack Bernhard

Associate Producer

John P. Fulton

Special Effects

Elwood Bredell

Director of Photography

Sid Schwartz

Story

Len Golos

Story