Cast & crew
The Black Secret (1919)
Directed by George B. Seitz Written by Bertram Millhauser, Robert W. Chambers
Cast
| Pearl White | Evelyn Cross Mulwray |
| Walter McGrail | McKay |
| George B. Seitz | Emperor's Spy |
| Harry Semels | |
| Henry G. Sell | |
| Wallace McCutcheon Jr. | Frederick Keinszig |
| Marjorie Milton | |
| Francis Wightwick |
Crew
| Bertram Millhauser | Screenplay |
| George B. Seitz | Director |
| Robert W. Chambers | Story |