 | Trevor Howard als David Redfern |
 | Anouk Aimée als Anna |
 | Herbert Lom als Rankl |
 | Walter Rilla als Serafis |
 | Miles Malleson als Douvet |
 | Jacques Sernas als Max |
 | Wilfrid Hyde-White als Agno |
 | Peter Copley als Aribi |
 | Marcel Poncin als Dommic |
 | Kathleen Boutall als Mdm. Guillard |
 | Eugene Deckers als Police Chief |
| Ronald Neame | Director |
| Alexander Galperson | Producer |
| Ronald Neame | Writer |
| Victor Canning | Writer |
| Lesley Storm | Writer |
| Freddie Francis | Camera Operator |
| Jim Hydes | Makeup Artist |
| Jack Harris | Editor |
| Dudley Lovell | Camera Operator |
| Victor Canning | Novel |
| William Alwyn | Music |
| Marjorie Owens | Script Supervisor |
| Gordon Pilkington | Sound Editor |
| Oswald Morris | Director of Photography |
| Elizabeth Hennings | Costume Design |
| Audrey Powell | Hairstylist |
| John Bryan | Production Design |
| Charles Knott | Sound Recordist |
| George Croll | Sound Recordist |
