Directed by
| G.B. Samuelson | ||
Writing Credits (in alphabetical order)
| John McNally | ... | (play) |
| G.B. Samuelson | ||
Cast (in credits order)
| Lilian Oldland | ... | Joyce Newcombe (as Mary Newland) | |
| Malcolm Keen | ... | Henry Garwood | |
 |
Harold French | ... | Bernard Wingate |
| Gibb McLaughlin | ... | Littleton Pardmore | |
| Sam Livesey | ... | Inspector Thompson | |
|
|
Henrietta Watson | ... | Mrs. Delahunt |
|
|
Henry Carlisle | ... | Clayton |
| Frank Pettingell | ... | Prof. Macguire | |
| Rest of cast listed alphabetically: | |||
|
|
Frederick Atwell | ... | (uncredited) |
| Dino Galvani | ... | (uncredited) | |
Produced by
| E. Gordon Craig | ... | producer |
Cinematography by
| Desmond Dickinson | ||
