 Peter LorreStephen Danel | Stephen Danel |
 Rochelle HudsonLorraine Danel | Lorraine Danel |
 Robert WilcoxMark Sheldon | Mark Sheldon |
 Don BeddoeBrand | Brand |
 George E. StoneSiggy | Siggy |
 Kenneth MacDonaldDoctor Rosener | Doctor Rosener |
 Charles MiddletonCaptain Cort | Captain Cort |
 Stanley BrownEddie | Eddie |
| EEarl GunnMitchell | Mitchell |
 Sam AshAmes - Parolee (uncredited) | Ames - Parolee (uncredited) |
 Raymond BaileyMystery Killer (uncredited) | Mystery Killer (uncredited) |
 Trevor BardetteDistrict Attorney (uncredited) | District Attorney (uncredited) |
 Bruce BennettHazen - Guard (uncredited) | Hazen - Guard (uncredited) |
| BBernie BreakstonTownsend (uncredited) | Townsend (uncredited) |
 Donald DouglasDepartment of Justice Official | Department of Justice Official |
 Richard FiskeHale (uncredited) | Hale (uncredited) |
 William GouldParole Board Member (uncredited) | Parole Board Member (uncredited) |
 Chuck HamiltonCop (uncredited) | Cop (uncredited) |
 Howard HickmanJudge (uncredited) | Judge (uncredited) |
 Al HillClinton (uncredited) | Clinton (uncredited) |
 Eddie LaughtonBorgo - Parolee (uncredited) | Borgo - Parolee (uncredited) |
 George McKayClerk (uncredited) | Clerk (uncredited) |
 Walter MillerDetective (uncredited) | Detective (uncredited) |
| EEdmund MortimerParole Board Member (uncredited) | Parole Board Member (uncredited) |
 Forbes MurrayChairman of Parole Board (uncredited) | Chairman of Parole Board (uncredited) |
| LLee PratherWarden (uncredited) | Warden (uncredited) |
 Addison RichardsJackson (#46) (uncredited) | Jackson (#46) (uncredited) |
 Harry StrangCop (uncredited) | Cop (uncredited) |
 John TyrrellDurkin - Prisoner (uncredited) | Durkin - Prisoner (uncredited) |
