A spy thriller involving an American who is enlisted by British intelligence to replace one of its recently murdered agents and smash a ring of blackmailers -- James Bond style -- headed by a nefarious figure known as Scorpio.
| Directing | Richard Thorpe | Director |
| Writing | Victor Canning | Novel |
| Writing | Jo Eisinger | Writer |
| Writing | Adrian Spies | Writer |
| Production | Richard Thorpe | Producer |
| Camera | Ellsworth Fredericks | Director of Photography |
| Sound | Dave Grusin | Original Music Composer |
| Editing | Richard W. Farrell | Editor |
| Art | George W. Davis | Art Direction |
| Art | Addison Hehr | Art Direction |
| Art | Henry Grace | Set Decoration |
| Art | Jack Mills | Set Decoration |
| Costume & Make-Up | William Tuttle | Makeup Artist |
| Costume & Make-Up | Mary Keats | Hairstylist |
