 Humphrey BogartADA Martin Ferguson | ADA Martin Ferguson |
 Zero Mostel'Big Babe' Lazich | 'Big Babe' Lazich |
 Ted de CorsiaJoseph 'Joe' Rico | Joseph 'Joe' Rico |
 Everett SloaneAlbert Mendoza | Albert Mendoza |
 Roy RobertsCaptain Frank Nelson | Captain Frank Nelson |
 Michael TolanJames 'Duke' Malloy | James 'Duke' Malloy |
 King DonovanSergeant Whitlow | Sergeant Whitlow |
 Bob SteeleHerman | Herman |
 Adelaide KleinOlga Kirshen | Olga Kirshen |
 Don BeddoeThomas O'Hara | Thomas O'Hara |
 Tito VuoloTony Vetto | Tony Vetto |
 John KelloggVince | Vince |
 Jack Lambert'Philadelphia' Tom Zaca | 'Philadelphia' Tom Zaca |
 Harry WilsonB. J. (uncredited) | B. J. (uncredited) |
 Dan RissMayor (uncredited) | Mayor (uncredited) |
 Howard M. MitchellFire Chief (uncredited) | Fire Chief (uncredited) |
 Greta GranstedtMrs. Lazich (uncredited) | Mrs. Lazich (uncredited) |
 Danny DaytonDigger (uncredited) | Digger (uncredited) |
 Susan CabotNina Lombardo (uncredited) | Nina Lombardo (uncredited) |
 Patricia JoinerTeresa Davis (uncredited) | Teresa Davis (uncredited) |
| MMario SilettiLouis the Barber (uncredited) | Louis the Barber (uncredited) |
 Edwin Max'Sad Eyes' (uncredited) | 'Sad Eyes' (uncredited) |
| RRichard BartellNot listed | Not listed |
 Chet BrandenburgNot listed | Not listed |
 Helen BrownNot listed | Not listed |
| BBenny BurtNot listed | Not listed |
 Steve CarruthersNot listed | Not listed |
 Sayre DearingNot listed | Not listed |
 Tom DillonNot listed | Not listed |
 Ralph DunnNot listed | Not listed |
