Trailer
Images
 | Cliff Robertson as David Frazer |
 | Jack Hawkins as Colonel Drexel |
 | Marisa Mell as Sophie |
 | Michel Piccoli as Georges Sarrassin |
 | Bill Fraser as Leslie Dunwoody |
 | Charles Gray as Benson |
 | John Le Mesurier as Sir Robert |
 | Felix Aylmer as Henrickson |
 | Christopher Witty as Prince Jamil |
 | Tutte Lemkow as Paviot |
 | Ernest Clark as Minister |
| Keith Pyott as Gustave |
| Jose Burgos as El Mono |
 | Roger Delgado as Ahmed bin Fayed |
| James Payne as Russian Officer in Tent (uncredited) |
 | Jerold Wells as Brindle (uncredited) |
| George Roderick as Officer at Circus (uncredited) |
| Production | |
| Michael Relph | Producer |
Costume & Make-Up | |
| Beatrice Dawson | Costume Design |
Writing | |
| Victor Canning | Novel |
Camera | |
| Otto Heller | Director of Photography |
Editing | |
| John D. Guthridge | Editor |
Art | |
| Donald M. Ashton | Production Design |
Directing | |
| Basil Dearden | Director |
Art | |
| Jack Stevens | Art Direction |
Sound | |
| Philip Green | Original Music Composer |
Writing | |
| William Goldman | Screenplay |
| Michael Relph | Screenplay |
Production | |
| Jack Rix | Production Supervisor |
Sound | |
| C.C. Stevens | Sound Recordist |
| Roy Baker | Sound Editor |
Costume & Make-Up | |
| Harry Frampton | Makeup Artist |
Directing | |
| Penny Daniels | Continuity |
| John Peverall | Assistant Director |
Sound | |
| Gordon K. McCallum | Sound Recordist |
Camera | |
| H. A. R. Thomson | Camera Operator |
Costume & Make-Up | |
| Frank Turner | Makeup Artist |
| Bill Griffiths | Hairdresser |
Production | |
| Charles Blair | Location Manager |
