| Directed by |
Arthur Lubin |
|
| Screenplay by |
Curt Siodmak Edmund L. Hartmann |
|
| Cast: | ||
| Dr. Ernest Sovac | Boris Karloff | |
| Eric Marnay | Bela Lugosi | |
| Prof. George Kingsley / Red Cannon | Stanley Ridges | |
| Sunny Rogers | Anne Nagel | |
| Jean Sovac | Anne Gwynne | |
| Mrs. Margaret Kingsley | Virginia Brissac | |
| William Kane | Paul Fix | |
| Bellhop | Murray Alper | |
| Bartender | Jack Mulhall | |
| 2nd Nurse | Elfriede Borodin | |
| Student | Tommy Conlon | |
| Reporter Ernst Gives Notes To | James Craig | |
| Detective | Kernan Cripps | |
| Det. Farnow | Eddie Dunn | |
| Detective | Edward Earle | |
| Prison Doctor | Harry Hayden | |
| Midtown Hotel Maid | Ellen Lowe | |
| Student | Wallace Reid Jr. | |
| Dr. Warner | Edwin Stanley | |
| Reporter at Execution | Milburn Stone | |
| Cabbie | Harry Tenbrook | |
| Det. Carpenter | Emmett Vogan | |
| Student | Dave Willock | |
| Year: | 1940 | |
| Running time: | 70 minutes | |
| Country: | United States | |
| Language: | English | |