| Directed by |
William Nigh |
|
| Screenplay by |
Scott Darling |
|
| Cast: | ||
| Mr. James Lee Wong | Boris Karloff | |
| Police Capt. Sam Street | Grant Withers | |
| Valerie Edwards | Dorothy Tree | |
| Peter Harrison | Craig Reynolds | |
| Michael Strogonoff | Ivan Lebedeff | |
| Prof. Ed Janney | Holmes Herbert | |
| Ballistics Expert | Wilbur Mack | |
| Charades-Player | I. Stanford Jolley | |
| Executive Producer |
Scott R. Dunlap |
|
| Edited by |
Russell F. Schoengarth |
|
| Year: | 1939 | |
| Running time: | 68 minutes | |
| Country: | United States | |
| Language: | English | |