As bare-knuckled boxing enters the modern era, brash extrovert Jim Corbett uses new rules and dazzlingly innovative footwork to rise to the top of the boxing world.
| Directing | Raoul Walsh | Director |
| Writing | Vincent Lawrence | Screenplay |
| Writing | Horace McCoy | Screenplay |
| Production | Robert Buckner | Producer |
| Production | Frank Mattison | Production Manager |
| Camera | Sidney Hickox | Director of Photography |
| Costume & Make-Up | Milo Anderson | Costume Design |
| Sound | Sam Perry | Music |
| Sound | Heinz Roemheld | Original Music Composer |
| Sound | C.A. Riggs | Sound |
| Sound | Ray Heindorf | Orchestrator |
| Sound | Leo F. Forbstein | Music Director |
| Writing | Hugh Cummings | Dialogue |
| Editing | Don Siegel | Editorial Services |
| Costume & Make-Up | Perc Westmore | Makeup Artist |
| Art | Clarence Steensen | Set Decoration |
| Crew | Yakima Canutt | Stunts |
| Crew | Mushy Callahan | Choreographer |
| Directing | Russell Saunders | Assistant Director |
| Art | Ted Smith | Art Direction |
| Editing | James Leicester | Editorial Services |
| Editing | Jack Killifer | Editor |
| Crew | Paul Stader | Stunts |
| Crew | Buster Wiles | Stunts |
| Crew | Ed Lewis | Stand In |
