 Edmond O'BrienDet. Lt. Barney Nolan | Det. Lt. Barney Nolan |
 Marla EnglishPatty Winters | Patty Winters |
 John AgarDet. Sgt. Mark Brewster | Det. Sgt. Mark Brewster |
 Emile MeyerCapt. Gunnarson | Capt. Gunnarson |
 Carolyn JonesBeth, Girl at Bar | Beth, Girl at Bar |
 Claude AkinsFat Michaels | Fat Michaels |
| LLawrence RyleLaddie O'Neil | Laddie O'Neil |
 Herbert ButterfieldCabot, Reporter | Cabot, Reporter |
 Hugh SandersPacky Reed | Packy Reed |
 William SchallertAsst. Dist. Atty. Andy Tucker | Asst. Dist. Atty. Andy Tucker |
 Richard DeaconThe Professor (uncredited) | The Professor (uncredited) |
 John BeradinoGambler Being Booked (uncredited) | Gambler Being Booked (uncredited) |
 Stafford ReppDetective O'Dell (uncredited) | Detective O'Dell (uncredited) |
 Vito ScottiJoe the Bartender (uncredited) | Joe the Bartender (uncredited) |
 William BoyettOfficer Cooper (uncredited) | Officer Cooper (uncredited) |
 Robert BrayDetective (uncredited) | Detective (uncredited) |
 Richard H. CuttingManning (uncredited) | Manning (uncredited) |
| MMickey GoldenAlley Crowd Member (uncredited) | Alley Crowd Member (uncredited) |
| DDavid HughesErnst Sternmueller (uncredited) | Ernst Sternmueller (uncredited) |
 Frank MarloweContact Man with Tickets (uncredited) | Contact Man with Tickets (uncredited) |
 Gregg MartellPacky's Hood (uncredited) | Packy's Hood (uncredited) |
| TTom McKeeTaylor's Interrogator (uncredited) | Taylor's Interrogator (uncredited) |
| GGrazia NarcisoItalian Restaurant Proprietress (uncredited) | Italian Restaurant Proprietress (uncredited) |
| NNorman OllestadJay Phelps (uncredited) | Jay Phelps (uncredited) |
 Jack PerryWilliam Taylor (uncredited) | William Taylor (uncredited) |
 John PhillipsOfficer Barnes (uncredited) | Officer Barnes (uncredited) |
| JJoe PloskiMan Eating Spaghetti (uncredited) | Man Eating Spaghetti (uncredited) |
| DDuke FishmanMan in Crowd (uncredited) | Man in Crowd (uncredited) |
