| Cast | Lon Chaney Jr. (as Alex Gregor / Gregor the Great), Evelyn Ankers (as Maura Daniel), Elena Verdugo (as Nina Coudreau), Tala Birell (as Mme. Valerie Monet), Martin Kosleck (as Rudi Polden), Douglass Dumbrille (as Inspector Brant), Milburn Stone (as George Keene) |
| Directed by | Harold Young |
| Links | https://www.imdb.com/title/tt0037722/ |
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