| Actor | Boris Karloff (as Baron Gregor de Berghman / Anton de Berghman), Marian Marsh (as Thea Hassel), Robert Allen (as Lt. Albert Lussan), Thurston Hall (as Col. Paul Hassel), Katherine DeMille (as Mashka) |
| Director | Roy William Neill |
| Links | https://www.imdb.com/title/tt0026123/ |
Releases 2
| Title | Format | Region | |
|---|---|---|---|
 | Icons Of Horror: Boris Karloff | DVD | 1 |
 | The Black Room | VHS | 1 |