Directed by
| Roy William Neill | ||
Writing Credits (in alphabetical order)
| Austin Melford | ||
| Roy William Neill | ... | (story) |
| Derek N. Twist | ||
| Brock Williams | ||
Cast (in credits order)
| John Loder | ... | Dr. Paul Raymond | |
| Jane Baxter | ... | Pamela Raymond | |
| Jack Hawkins | ... | Stamp | |
 |
Hartley Power | ... | Campbell |
|
|
Peter Croft | ... | Nigel |
|
|
Frederick Burtwell | ... | Morgan |
| William Hartnell | ... | Dick (as Billy Hartnell) | |
|
|
Ian McLean | ... | Inspector (as Ian Maclean) |
| Richard George | |||
| Aubrey Mallalieu | |||
|
|
Peter Miles | ||
| Roddy McDowall | |||
Produced by
| Roy William Neill | ... | producer |
Music by
| Bretton Byrd | ... | (uncredited) |
Cinematography by
| Basil Emmott | ||
Camera and Electrical Department
| Ernest Steward | ... | camera operator |
Music Department
| Bretton Byrd | ... | musical director |
