Trailer
Images
 | Richard Roundtree as Dick Shannon |
 | Chuck Connors as Kesten |
 | Marie-José Nat as Laure |
 | Ray Milland as Ambassador |
 | Broderick Crawford as Frank Dunniger |
 | Max von Sydow as Gorenko |
 | David Bauer as Kadish |
 | Larry Cross as Gamble |
 | David Healy as Phelan |
 | Karl Held as Rylands |
 | Sarah Marshall as Miss Harding |
 | Dee Pollock as Stacey |
 | Leila Buheiry as Leila |
| Gail Clymer as Switchboard Operator |
| Edmond Hannania as First Man in Black |
| Saladin Nader as Roget |
| Dean Turner as Clem Gelber |
| David Parker |
| Directing | |
| Gordon Hessler | Director |
Sound | |
| Jonathan Hodge | Original Music Composer |
Writing | |
| William Fairchild | Screenplay |
| Stephen Coulter | Novel |
Camera | |
| Raoul Coutard | Director of Photography |
Art | |
| Maurice Labaye Fanykovy | Art Direction |
| Klary Confalonieri | Set Decoration |
Editing | |
| Willy Kemplen | Editor |
Costume & Make-Up | |
| Colin Garde | Makeup Artist |
Production | |
| Mel Ferrer | Producer |
Art | |
| John Howell | Production Design |
Sound | |
| John Poyner | Sound Editor |
Camera | |
| Georges Liron | Camera Operator |
| Jean Garcenot | Assistant Camera |
Directing | |
| Frank Ernst | Assistant Director |
