Peter wants to practice for an upcoming jazz competition with his friends Willi, Oskar, and Jupp. But his uncle Tobias, on whose farm Peter lives, must not find out about it.

Peter Alexander
as Peter Holunder

Bibi Johns
as Dagmar Thomas

Ruth Stephan
as Christa Knax

Brigitte Mira
as Frau Knax

Joseph Egger
as Onkel Tobias

Gerold Wanke
as Willi

Peter Garden
as Oskar

Hans von Borsody
as Jupp

Lucie Englisch
as Wirtin des 'Roten Ochsen'

Helga Martin
as Nichte Rosl