Hansi Kraus as Ludwig Thoma

Kristina Nel as Lilly Klausing

Käthe Braun as Theres Thoma

Bruno Hübner as Prof. Nasenpfeifer

Ernst Fritz Fürbringer as School Director

Monika Greving as Mathilde Klausing

Harald Juhnke as Mr. Klausing

Petra Falge as Liesl

Ludwig Schmid-Wildy as Rower

Willy Schultes as Postman