Trailer
 | Eille Norwood as Sherlock Holmes |
| Hubert Willis as Dr. John Watson |
 | Sebastian Smith as Henry Baker |
| Archie Hunter as Breckinridge |
| Mary Mackintosh as Maggie Oakshott |
| Douglas Payne as Peterson |
| Gordon Hopkirk as James Ryder |
| Writing | |
| Geoffrey Malins | Writer |
Directing | |
| George Ridgwell | Director |
Writing | |
| Arthur Conan Doyle | Novel |
| Patrick L. Mannock | Writer |
