Cast & crew
Police Spy 77 (1930)
Directed by Willi Wolff Written by Willi Wolff, Ladislaus Vajda
Cast
| Ellen Richter | 77 |
| Philipp Manning | Untersuchungsrichter Hopek |
| Ralph Arthur Roberts | Bébert |
| Nikolai Malikoff | |
| Robert Garrison |
Crew
| Willi Wolff | Director |
| Willi Wolff | Writer |
| Ladislaus Vajda | Writer |