Boris Karloff

Character: John Ellman

Ricardo Cortez

Character: Nolan

Edmund Gwenn

Character: Dr. Evan Beaumont

Marguerite Churchill

Character: Nancy

Warren Hull

Character: Jimmy

Barton MacLane

Character: Loder

Henry O'Neill

Character: District Attorney Werner

Joe King

Character: Judge Roger Shaw

Addison Richards

Character: Prison Warden

Paul Harvey

Character: Blackstone

Robert Strange

Character: Merritt

Joe Sawyer

Character: 'Trigger' Smith

Eddie Acuff

Character: 'Betcha'

Kenneth Harlan

Character: Stephen Martin

Miki Morita

Character: Loder's Butler Sako

Ruth Robinson

Character: Mrs. Shaw

George Beranger

Character: Nolan's Butler (uncredited)

Wade Boteler

Character: Cellist's Guard (uncredited)

Frank Darien

Character: Cemetery Caretaker (uncredited)

Edward Gargan

Character: Guard Sitting Outside Warden's Office (uncredited)

Crauford Kent

Character: British Radio Announcer (uncredited)

Milton Kibbee

Character: Reporter (uncredited)

William H. O'Brien

Character: Juror (uncredited)

Paul Panzer

Character: Man in Courtroom (uncredited)

Leo White

Character: Man in Courtroom (uncredited)