The likeable and carefree Grand Duke of Abacco is in dire straits. There is no money left to service the State’s debt; the main creditor is looking forward to expropriating the entire Duchy. The marriage with Olga, Grand Duchess of Russia, would solve everything, but a crucial letter of hers about the engagement has been stolen. Besides, a bunch of revolutionaries and a dubious businessman have other plans regarding the Grand Duke. With the intrusion of adventurer Philipp Collins into the Grand Duke’s affairs, a series of frantic chases, plots and counter-plots begins…
| Actor | Role |
|---|---|
 Viktor de KowaGrossherzog | Grossherzog |
| PPaul HenckelsPaqueno | Paqueno |
 Heinz RühmannPelotard | Pelotard |
 Theo LingenFuerst Potemkin | Fuerst Potemkin |
 Hilde WeissnerGroßfürstin Diana | Großfürstin Diana |
 Fritz AlbertiGroßfürst Cyrill | Großfürst Cyrill |
| MMaria LojaConchita | Conchita |
| HHans StiebnerLuis | Luis |
 Willi SchurMalossol | Malossol |
| EErnst RotmundMircovich | Mircovich |
| VVilma BekendorfDianas Zofe | Dianas Zofe |
| WWolfgang von SchwindtSergeant Quesada | Sergeant Quesada |
| SSergeant QuesadaNot listed | Not listed |
| FFriedrich HonnaNot listed | Not listed |
 Kurt HöllgerNot listed | Not listed |
 Genia NikolaievaNot listed | Not listed |
| BBert Schmidt-MorisStraßenjunge | Straßenjunge |
| OOssy Kratz-CorellKorporal in der Leibwache des Großherzogs | Korporal in der Leibwache des Großherzogs |
| EElisabeth von RuetsNot listed | Not listed |