| Directed by |
Robert Stevenson |
|
| Screenplay by |
Sidney Gilliat |
|
| Cast: | ||
| Dr. Laurience / Dick Haslewood | Boris Karloff | |
| Dr. Clare Wyatt | Anna Lee | |
| Dick Haslewood / Dr. Laurience | John Loder | |
| Lord Haslewood / Clayton | Frank Cellier | |
| Clayton / Lord Haslewood | Donald Calthrop | |
| Dr. Gratton | Cecil Parker | |
| Journalist | Clive Morton | |
| Director of photography |
Jack E. Cox |
|
| Produced by |
Michael Balcon |
|
| Edited by |
R.E. Dearing Alfred Roome |
|
| Year: | 1936 | |
| Running time: | 66 minutes | |
| Country: | United Kingdom | |
| Language: | English | |