| Person | Type | Job | Role(s) |
|---|---|---|---|
 Frank Fenton | Crew | Writing | Screenplay |
Harry J. Wild | Crew | Camera | Director of Photography |
Howard Benedict | Crew | Production | Producer |
Lee S. Marcus | Crew | Production | Executive Producer |
Lynn Root | Crew | Writing | Screenplay |
Martin Mooney | Crew | Writing | Story |
Ray McCarey | Crew | Directing | Director |
 Renié | Crew | Costume & Make-Up | Costume Supervisor |
Richard Van Hessen | Crew | Sound | Sound Recordist |
 Roy Webb | Crew | Sound | Original Music Composer |
Theron Warth | Crew | Editing | Editor |
 Van Nest Polglase | Crew | Art | Art Direction |
 Vernon L. Walker | Crew | Crew | Special Effects |
 Anthony Warde | Cast | Actor | Max, Convict (uncredited) |
 Brooks Benedict | Cast | Actor | Reporter (uncredited) |
Bruce Mitchell | Cast | Actor | Train Conductor (uncredited) |
Carole Wayne | Cast | Wife of SOS (uncredited) | |
 Charles C. Wilson | Cast | Actor | R.J. Reynolds, Sunday Editor (uncredited) |
 Charlie Hall | Cast | Actor | Cockney Convict Heckler (uncredited) |
 Chester Clute | Cast | Actor | Sidney Keats |
 Cliff Edwards | Cast | Actor | Happy |
 Cy Schindell | Cast | Actor | Red Vernon (uncredited) |
 Dell Henderson | Cast | Actor | Dell, Deputy Taking Vander to Prison (uncredited) |
Donald Kerr | Cast | Actor | Prison Library Clerk (uncredited) |
Eddie Hart | Cast | Actor | Reporter (uncredited) |
 Elliott Sullivan | Cast | Actor | Tony Brody |
 Frank Mills | Cast | Actor | Convict Chef Dominick (uncredited) |
 Frank O'Connor | Cast | Actor | Frank, Prison Guard (uncredited) |
 George Magrill | Cast | Actor | Guard in Yard (uncredited) |
Grace Lenard | Cast | Actress | Marie Brody (uncredited) |
 Grady Sutton | Cast | Actor | Jock, Vander's Nephew (uncredited) |
 Hal K. Dawson | Cast | Actor | Mike, a Reporter (uncredited) |
 Harry Strang | Cast | Actor | Convict (uncredited) |
Herman Marks | Cast | Convict Taunting New Prisoners (uncredited) | |
 Horace McMahon | Cast | Actor | Sylvester Odgen 'SOS' Schofield (as Horace MacMahon) |
 Joe Devlin | Cast | Actor | Vince Connell (uncredited) |
 John Dilson | Cast | Actor | Observer at Train Station (uncredited) |
 John Sheehan | Cast | Actor | Deputy Taking Keats & Kellogg to Prison (uncredited) |
 Kenneth Harlan | Cast | Actor | Jerry Connell (uncredited) |
Larry McGrath | Cast | Actor | Visitor's Room Guard (uncredited) |
 Lee Tracy | Cast | Actor | Nick Burton |
 Leo Cleary | Cast | Actor | Deputy Taking Collins to Prison (uncredited) |
 Linda Hayes | Cast | Actress | Helen Hewitt |
 Morgan Conway | Cast | Actor | James Brent |
 Paul Guilfoyle | Cast | Actor | Ox |
 Raymond Walburn | Cast | Actor | Bruce Vander |
 Richard Cramer | Cast | Actor | Guard Finding Keats' Menu (uncredited) |
Sam Lufkin | Cast | Actor | Convict (uncredited) |
 Sammy Stein | Cast | Actor | Mess Hall Guard (uncredited) |
 Selmer Jackson | Cast | Actor | Dr. Harry Lindsay |
 Shemp Howard | Cast | Actor | Professor |
 Thomas E. Jackson | Cast | Actor | Warden Tom Hammond |
 Thurston Hall | Cast | Actor | Harold Kellogg |
 Truman Bradley | Cast | Actor | Dr. William 'Bill' Collins |
 Vinton Hayworth | Cast | Actor | 'Windy' Windsor (as Jack Arnold) |
 Virginia Vale | Cast | Actress | May Thomas |
Chester Tallman | Cast | Guard (uncredited) | |
Roger Laswell | Cast | Guard (uncredited) | |
Donald McNamee | Cast | Reporter (uncredited) | |
| Person | Type | Job | Role(s) |
