Boris Karloff
Dr. John Garth
Acting
Evelyn Keyes
Martha Garth
Acting
Bruce Bennett
Dr. Paul Ames
Acting
Don Beddoe
Capt. McGraw
Acting
Edward Van Sloan
Dr. Ralph Howard
Acting
Ben Taggart
Warden Thompson
Acting
Pedro de Cordoba
Victor Sondini
Acting
Wright Kramer
George Wharton
Acting
Bertram Marburgh
Stephen Barclay
Acting
Robert Fiske
District Attorney
Acting
Frank Richards
Otto Kron - Convict
Acting
Kenneth MacDonald
Anson, Prison Guard
Acting
Ernie Adams
Sam - Hospital Prison Orderly
Acting
Frederick Burton
Governor Prentiss
Acting
Edward Earle
Dr. Nichols
Acting
Richard Fiske
Mandish
Acting
George McKay
Reardon
Acting
John Tyrrell
Sanders
Acting
Jack Cheatham
Patrolman Olson
Acting
Charles Trowbridge
Judge Braden
Acting
Bert Moorhouse
Cousel at Defense Table
Acting
Sam Harris
Courtroom Spectator
Acting
Edmund Mortimer
Courtroom Spectator
Acting
Stanley Brown
Prison Gate Guard
Acting
Eddie Laughton
Guard
Acting
James T. Mack
Butler
Acting
Gohr Van Vleck
Police Dispatcher
Acting