Writing Credits (in alphabetical order)
| Henry Treece | ||
Cast
| Freda Bamford | ... | Mrs. Massingham | |
 |
Joseph Chelton | ... | Kurt Gradtz |
|
|
Danny Hayes | ... | David Massingham |
| Donald Morley | ... | Vasilio Yagic | |
| Patrick Troughton | ... | Steve | |
Produced by
| Joy Harington | ... | producer |
Editing by
| John Pullen | ||
Production Design by
| John Cooper | ||
Camera and Electrical Department
| David Prosser | ... | film cameraman |
