 | Tony Curtis als Eddie Quaid / Packy Glennon |
 | Pat Crowley als Julie Walsh |
 | Ernest Borgnine als Bernie Browne |
 | Paul Kelly als Jim McBride |
 | Jim Backus als Pat Quaid |
 | Leigh Snowden als Lorraine Evans |
 | John Daheim als Al Gorski (as John Day) |
| Joe Louis als Himself |
 | David Janssen als Jack Lindsay |
 | Carmen McRae als Singer |
 | John Marley als Tommy Dillon |
 | Barney Phillips als Dan Selby |
 | Joseph Vitale als Tony Adamson |
 | Kay Stewart als Mrs. Gorski |
| Jerry Hopper | Director |
| George Robinson | Director of Photography |
| Luanna Sherman | Script Supervisor |
| George Zuckerman | Screenplay |
| George Zuckerman | Story |
| Alexander Golitzen | Art Direction |
| Alfred Sweeney | Art Direction |
| Russell A. Gausman | Set Decoration |
| Ruby R. Levitt | Set Decoration |
| Leslie I. Carey | Sound |
| John K. Kean | Sound |
| Frankie Van | Technical Advisor |
| Paul Weatherwax | Editor |
| Rosemary Odell | Costume Design |
| Joan St. Oegger | Hairstylist |
| Bud Westmore | Makeup Artist |
| Frank Shaw | Assistant Director |
| Clifford Stine | Visual Effects |
| Joseph Gershenson | Music Supervisor |
| Albert Zugsmith | Producer |
| Sergei Petschnikoff | Unit Production Manager |
| Willard Kirkham | Assistant Director |
| Ed Case | Props |
| David Sharpe | Stunt Double |
| Clifford Stine | Still Photographer |
| Henry Mancini | Music |
| Heinz Roemheld | Original Music Composer |
| Luanna S. Poole | Script Supervisor |
| Jack Daniels | Dialogue Coach |
| David Sharpe | Technical Advisor |
