Directed by
| Michael Powell | ||
Writing Credits
| Jerome Jackson | ... | (by) & |
| Michael Powell | ... | (by) |
| L. du Garde Peach | ... | (dialogue) (as L. Du G. Peach) |
Cast (in credits order) complete, awaiting verification
| Leslie Banks | ... | David Barr | |
| Carol Goodner | ... | June MacKinnon | |
| Frank Vosper | ... | Lord Dean | |
| Alfred Drayton | ... | Manning | |
 |
Campbell Gullan | ... | Hannay |
| Percy Parsons | ... | Casey | |
|
|
Fewlass Llewellyn | ... | Sir Gregory |
| Henry Oscar | ... | Raglan | |
| Allan Jeayes | ... | Grierson | |
| Donald Calthrop | ... | Macleod | |
|
|
Henry Caine | ... | Bassett |
| Rest of cast listed alphabetically: | |||
| George Carney | ... | Mr. Lindsey (uncredited) | |
| Jack Lambert | ... | Police Inspector (uncredited) | |
| John Laurie | ... | Wages Accountant (uncredited) | |
|
|
Frederick Piper | ... | Mr. McWilliams (uncredited) |
| Jack Raine | ... | Testing Official (uncredited) | |
Produced by
| Michael Balcon | ... | executive producer |
| Jerome Jackson | ... | producer |
Cinematography by
| Leslie Rowson | ||
Editing by
| Geoffrey Barkas | ||
Art Direction by
| Alfred Junge | ||
Costume Design by
| Gordon Conway | ||
Sound Department
| Peter Birch | ... | sound recordist (as G. Birch) |
