| Rolle | Person |
|---|---|
| Frank Hardy | Nils Weyland |
| Joe Hardy | Dirk Meyer |
| Rolle | Person |
|---|---|
| Chet Morton | Hubertus von Lerchenfeld |
| Chief Ezra Collig | Michael Habeck |
| Dougal Siep | Dieter Memel |
| Ellen | ??? |
| Eric Piedmont | ??? |
| Fenton Hardy | ??? |
| Gus Russo | Kai Taschner |
| Harold Morley | Hubertus von Lerchenfeld |
| Iola | ??? |
| Laura Hardy | ??? |
| Lilly Spencer | ??? |
| Mark | ??? |
| Mary | ??? |
| Officer Riley | Oliver Mink |
| Orin | Kai Taschner |
| Phil | Kai Taschner |
| Richard Llewellyn | ??? |
| Samuel Spencer | Thomas Rauscher |
| Tante Trudy | ??? |
| Thomas Spencer | Dieter Memel |
| TV-Stimme | ??? |
| Val | Gerhard Acktun |
| Victor | Oliver Mink |
