- Glenn Ford
- Joe Hufford
- Broderick Crawford
- George Knowland
- Millard Mitchell
- Malloby
- Dorothy Malone
- Kay Knowland
- Carl Benton Reid
- Capt. Douglas
- Frank Faylen
- Ponti - Convict
- Will Geer
- Mapes - Convict
- Martha Stewart
- Bertie Williams
- Henry O'Neill
- Detective Dorn
- Douglas Kennedy
- Det. Bailey
- Roland Winters
- Vernon Bradley - Attorney
- Ed Begley
- Mackay - Head of Parole Board
- Wilton Graff
- Dr. Agar
- Griff Barnett
- Mr. Hufford
- Jay Barney
- Convict Nick - Prison Cook
- Brandon Beach
- Convict
- Whit Bissell
- States Attorney Owens
- Marshall Bradford
- Parole Board Member
- Chet Brandenburg
- Convict
- Benny Burt
- Blackie - Convict
- James Bush
- Guard in Kitchen
- John Butler
- Curly - Convict
- Frank Cady
- Eddie
- Charles Cane
- Police Desk Sergeant
- Clancy Cooper
- Prison Guard
- Harry Cording
- Convict in Prison Yard
- Jimmy Dime
- Convict in Prison Yard
- Jimmie Dodd
- Convict Grant
- John Doucette
- Tex - Convict
- Duke Fishman
- Convict in Prison Yard
- Fred Graham
- Guard in Laundry
- William E. Green
- Dr. Masterson
- Ilka Grüning
- Martha Lorry
- Richard Hale
- Judge
- Chuck Hamilton
- Policeman
- Harry Harvey
- Parole Board Member
- Bradford Hatton
- Parole Board Member
- Tom Kingston
- Train Conductor
- Robert Malcolm
- Guard
- Alphonse Martell
- Melreau - Convict
- James Millican
- Guard in Kitchen
- Carroll O'Connor
- Prison Guard
- Eddie Parker
- Guard in Laundry
- Jack Perry
- Convict in Prison Yard
- Vincent Renno
- Freddie
- Fred F. Sears
- Fingerprint Man
- Charles Sherlock
- Policeman
- William Tannen
- Prison Guard
- Ray Teal
- Cell Block / Yard Guard (uncredited)
- William Vedder
- Whitey - 2nd Convict
- Peter Virgo
- Luigi - Convict
- Blackie Whiteford
- Convict in Prison Yard
- Harry Wilson
- Convict in Prison Yard
