The 13-year-old Ludwig is to have for every joke. At boarding school he cuts his stern teacher, Captain a. D. Semmelmaier, during the nap from the beard. The angry pedagogue then sends the spoiled flail back to his beloved Bavarian village. The long-suffering mother persuades the rector to resume her reforming boy at the Latin school. Everything seems to be working out for the better, but the upcoming marriage of his sister Ännchen with the Berlin beer brewer Karl Schultheiss presents Ludwig with new challenges.
| Actor | Role |
|---|---|
 Hansi KrausLudwig Thoma | Ludwig Thoma |
 Käthe BraunTheres Thoma | Theres Thoma |
 Elisabeth FlickenschildtAunt Frieda | Aunt Frieda |
 Heidelinde WeisCora Thoma | Cora Thoma |
 Friedrich von ThunFranz Reiser | Franz Reiser |
 Gustav KnuthGustav Schultheiss | Gustav Schultheiss |
 Michael HinzKarl Schultheiss | Karl Schultheiss |
 Hans Questvon Stuelphagel | von Stuelphagel |
 Renate KaschéAennchen Schultheiss | Aennchen Schultheiss |
 Gunther PhilippDirnhirn | Dirnhirn |
 Michl LangJosef Filser | Josef Filser |
 Beppo BremQuirin | Quirin |
 Fred LiewehrPrince Regent | Prince Regent |
 Rudolf RhombergPriest 'Kindlein' Falkenberg | Priest 'Kindlein' Falkenberg |
 Oliver HassencampBindinger | Bindinger |
| HHilli WildenhainMrs. Semmelmeier | Mrs. Semmelmeier |
 Rudolf SchündlerRudolf Waschkühn | Rudolf Waschkühn |
 Margarete HaagenKathi | Kathi |
| OOlf FischerUncle Franz | Uncle Franz |
 Ernst Fritz FürbringerSchool Director | School Director |
 Rosl MayrPedlar | Pedlar |
 Hans TerofalSeitz | Seitz |
| AAlfred PongratzPepi | Pepi |
 Carl WeryJoseph Semmelmaier | Joseph Semmelmaier |