Trailer
Images
 | Valerie Hobson as Alycia Roche |
 | James Robertson Justice as Jonathan Roche |
 | Edward Underdown as Hugh Allen |
 | Henry Kendall as Ronald Parker |
 | Garry Marsh as Inspector Thornton |
 | Sam Kydd as Sgt. Baker |
 | Ian Fleming as Dr. Forrest |
 | Daniel Wherry as Pierce |
| Daphne Newton as Miss Quinn |
| Directing | |
| John Gilling | Director |
Production | |
| Robert S. Baker | Producer |
| Monty Berman | Producer |
Writing | |
| John Gilling | Writer |
| Gerald Landeau | Writer |
Sound | |
| Frank Cordell | Music |
Camera | |
| Monty Berman | Director of Photography |
| Desmond Davis | Focus Puller |
