Writing Credits (in alphabetical order)
| Jacques Futrelle | ... | (story) |
Cast (in credits order)
| Alec B. Francis | ... | Mr. Grimm - Secret Service | |
| Belle Adair | ... | Rosa Morini | |
| Edward Roseman | ... | Prince Morini (as Edward F. Roseman) | |
| Frederick Truesdell | ... | The Venezuelan Ambassador (as Fred Truesdale) | |
 |
Lindsay J. Hall | ... | The Venezuelan Ambassador's Accomplice (as J. Lindsay Hall) |
