 | Steve McQueen als Lt. Ferguson 'Fergie' Howard |
 | Brigid Bazlen als Julie Fitch |
 | Jim Hutton als Jason Eldridge |
 | Paula Prentiss als Pam Dunstan |
 | Dean Jagger als Admiral Fitch |
 | Jack Weston als Signalman Burford Taylor |
 | Jack Mullaney als Lt. Beauregard 'Beau' Gilliam |
 | Marcel Hillaire als Inspector of casino games |
 | Ben Astar als Russian consul |
 | William Lanteau als Tommy Dane |
 | Ken Lynch als Capt. James Angle |
 | Simon Scott als Capt. Harvey Adam |
 | Norman Grabowski als Shipboard Signalman (uncredited) |
 | Bess Flowers als Bar Patron (uncredited) |
 | Kenner G. Kemp als Casino Patron (uncredited) |
| Lorenzo Semple Jr. | Theatre Play |
| Richard Thorpe | Director |
| George Wells | Writer |
| Ben Lewis | Editor |
| Leigh Harline | Original Music Composer |
| Joseph LaShelle | Director of Photography |
| George W. Davis | Art Direction |
| Henry Grace | Set Decoration |
| Lawrence Weingarten | Producer |
| E. Preston Ames | Art Direction |
| Jerry Wunderlich | Set Decoration |
| Helen Rose | Costume Design |
| Mary Keats | Hairstylist |
| John Truwe | Makeup Artist |
| William Tuttle | Makeup Artist |
| Ronald Florance | Assistant Director |
| Franklin Milton | Recording Supervision |
| Robert R. Hoag | Special Effects |
| Lee LeBlanc | Special Effects |
