Little Erna is a cheeky Hamburg girl. She gets up to the greatest pranks with her boyfriend. That's why her mother sends her on vacation alone to her aunt. There, too, the little girl gets up to all sorts of mischief...
| Actor | Role |
|---|---|
 Heidi KabelTante Frieda Pumeier | Tante Frieda Pumeier |
 Loni HeuserFrau Heimann | Frau Heimann |
 Erna SellmerTante Martha | Tante Martha |
 Ruth StephanFrau Nohr | Frau Nohr |
| GGitta ZeidlerKlein Erna | Klein Erna |
 Harald JuhnkePeter Pumeier | Peter Pumeier |
 Heinz ErhardtOnkel Fritz | Onkel Fritz |
| KKarl TischlingerAlois | Alois |
 Edgar BessenJens | Jens |
 Rudolf BeiswangerOpa Jensen | Opa Jensen |
 Almut EggertKäthe Pumeier | Käthe Pumeier |
| HHeidi MahlerLehrerin | Lehrerin |
| RRodney GeigerNot listed | Not listed |
 Friedrich SchütterNot listed | Not listed |
 Petra von der LindeMicky | Micky |
| MMartin HolmNot listed | Not listed |
| BBernd KranzNot listed | Not listed |