Adrian Messenger, a famous writer, asks his friend Anthony Gethryn, a former British agent, to help him investigate the whereabouts of the people who appear on a list, without asking him the reason why he should do so.
| Directing | John Huston | Director |
| Writing | Anthony Veiller | Screenplay |
| Camera | Joseph MacDonald | Director of Photography |
| Sound | Jerry Goldsmith | Original Music Composer |
| Writing | Philip MacDonald | Story |
| Production | Edward Lewis | Producer |
| Production | Kirk Douglas | Executive Producer |
| Editing | Terry O. Morse | Editor |
| Art | Alexander Golitzen | Art Direction |
| Art | Stephen B. Grimes | Art Direction |
| Art | George C. Webb | Art Direction |
| Art | Oliver Emert | Set Decoration |
| Sound | Waldon O. Watson | Sound |
| Sound | Frank H. Wilkinson | Sound |
| Costume & Make-Up | John Chambers | Makeup Artist |
| Costume & Make-Up | Dave Grayson | Makeup Artist |
| Costume & Make-Up | Nick Marcellino | Makeup Artist |
| Costume & Make-Up | Bud Westmore | Makeup Designer |
| Production | Richard McWhorter | Unit Production Manager |
| Production | Edward Muhl | Production Manager |
| Camera | Edward Scaife | Director of Photography |
| Directing | Tom Shaw | Assistant Director |
