 | Julie London als Mary Loring |
 | Anthony Steel als Mark Loring |
 | Basil Sydney als Sir John Loring |
 | Donald Houston als Mr. Jacobus |
 | Anton Diffring als Carl Dieter |
 | Andrew Cruickshank als Dr. Cameron |
 | Frank Thring als Mr. Stanley |
 | Conrad Phillips als Mario |
 | Kynaston Reeves als Judge |
 | Arthur Gomez als Spanish Doctor |
 | Georgina Cookson als Mrs. Duncan |
 | Richard Caldicot als Mr. Duncan |
 | Rodney Burke als 2nd Barrister |
| Don Chaffey | Director |
| Ann Edwards | Writer |
| Denis Freeman | Writer |
| Victor Lyndon | Producer |
| Raymond Stross | Producer |
| Philip Green | Music |
| Peter Tanner | Editor |
| John Stoll | Art Direction |
| Harold Fletcher | Makeup Artist |
| Pearl Tipaldi | Hairdresser |
| Clifton Brandon | Production Manager |
| Kim Mills | Assistant Director |
| Alan Evans | Scenic Artist |
| Roy Baker | Sound Editor |
| Cyril Collick | Sound Recordist |
| Ray Sturgess | Camera Operator |
| Kathleen Moore | Wardrobe Master |
| Jane Buck | Continuity |
| Raymond Stross | Presenter |
| Stephen Dade | Director of Photography |
