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Gene Evans as Lou Gannon |
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Robert Blake as Rudy Hernandez |
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Timothy Carey as Ed 'Bugsy' Kyle |
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John Qualen as Doc |
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Sam Edwards as Al |
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John Dennis as Red |
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Walter Barnes as Guard Capt. Starkey |
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Frank Richards as Jake |
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Emile Meyer as Warden |
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Arline Hunter as Girl |
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Kenner G. Kemp as Guard (uncredited) |
| Costume & Make-Up | John G. Holden | Makeup Artist |
| Sound | Charles G. Schelling | Sound Editor |
| Art | Dave Milton | Art Direction |
| Directing | Herbert E. Mendelson | Assistant Director |
| Art | Art Cole | Property Master |
| Costume & Make-Up | Roger J. Weinberg | Wardrobe Designer |
| Art | Joseph Kish | Set Decoration |
| Crew | Herman E. Townsley | Special Effects |
| Production | Edward Morey Jr. | Production Manager |
| Writing | Daniel James | Writer |
| Editing | William Austin | Editor |
| Writing | Eugène Lourié | Writer |
| Directing | R.G. Springsteen | Director |
| Production | David Diamond | Producer |
| Camera | William Margulies | Director of Photography |