Originally planned as the third entry in the Der Hund von Baskerville series, it was reworked into a stand alone film before release.
| Actor | Role |
|---|---|
 Eugen BurgDetective Braun | Detective Braun |
 Friedrich KühneStapleton | Stapleton |
 Hanni WeisseElse Schmidt | Else Schmidt |
 Frederic ZelnikNot listed | Not listed |