A sentimental musical film about a star conductor and his motherless daughter, orphaned children, choirboys, and a pretty governess.
| Actor | Role |
|---|---|
 Carlos ThompsonRené von Geldern | René von Geldern |
 Linda ChristianVilma Cortini | Vilma Cortini |
 Edmund PurdomHarry Mell | Harry Mell |
 Ingeborg SchönerInge Salinger | Inge Salinger |
 Eva Ingeborg ScholzBarbara | Barbara |
 Lotte LangFrau Sedlacek | Frau Sedlacek |
 Rudolf SchockSänger, himself | Sänger, himself |
 Elke AberleSusi von Geldern | Susi von Geldern |
 Heinz WeissStefan | Stefan |
 Rolf OlsenBruno Engel | Bruno Engel |
 Richard EybnerProf. Warwenka | Prof. Warwenka |
| WWalter VarndalProf. Berger | Prof. Berger |
 Massimo GiulianiFrancesco | Francesco |
 Hans ThimigNot listed | Not listed |