Jim Wormold is an expatriate Englishman living in pre-revolutionary Havana with his teenage daughter Milly. He owns a vacuum cleaner shop but isn’t very successful so he accepts an offer from Hawthorne of the British Secret Service to recruit a network of agents in Cuba.
| Editing | Bert Bates | Editor |
| Writing | Graham Greene | Screenplay |
| Sound | Laurence Deniz | Original Music Composer |
| Production | Carol Reed | Producer |
| Writing | Graham Greene | Novel |
| Sound | Frank Deniz | Original Music Composer |
| Directing | Carol Reed | Director |
| Camera | Oswald Morris | Director of Photography |
| Art | John Box | Art Direction |
| Costume & Make-Up | Betty Adamson | Wardrobe Master |
| Sound | Teddy Mason | Sound Editor |
| Sound | John W. Mitchell | Sound Recordist |
| Costume & Make-Up | Gordon Bond | Hairdresser |
| Sound | Laurence Deniz | Musician |
| Sound | John Cox | Sound Supervisor |
| Sound | Frank Deniz | Musician |
| Directing | Gerry O'Hara | Assistant Director |
| Production | Raymond Anzarut | Associate Producer |
| Production | James H. Ware | Unit Manager |
| Sound | Red Law | Sound Recordist |
| Costume & Make-Up | Harry Frampton | Makeup Artist |
| Camera | Denys N. Coop | Camera Operator |
| Directing | Maggie Unsworth | Continuity |
| Art | Syd Cain | Assistant Art Director |
| Costume & Make-Up | Phyllis Dalton | Costume Designer |
