Circus artists Jan and Annie are in possession of jewels that were - unbeknownst to them - stolen from the famous Jolly Sisters. Mistaking them for the thieves, two bumbling detectives infiltrate the Dutch theatre-life.
| Actor | Role |
|---|---|
 Henriëtte DavidsAnnie Holst | Annie Holst |
 Johan KaartJan Holst | Jan Holst |
 Fien BergheggeTruus | Truus |
 Matthieu van EysdenMarinelli | Marinelli |
 Sylvain PoonsDetective 1 | Detective 1 |
 Johan ElsensohnDetective 2 | Detective 2 |
 Wim KanNot listed | Not listed |
 Corry VonkNot listed | Not listed |
 August KiehlNot listed | Not listed |
| HHarry BodaNot listed | Not listed |
| CClara Vischer-BlaaserNot listed | Not listed |
| AAlex de MeesterNot listed | Not listed |
| LLizzy ValescoNot listed | Not listed |
| JJan GrootveldNot listed | Not listed |
| JJean JanssenNot listed | Not listed |
| CCharles BraakensiekNot listed | Not listed |