Ewald Balser as Professor Wilhelm Keller

Adelheid Seeck as Friedel, seine Frau

Christian Doermer as Friedrich

Heidi Brühl as Bixi

Roland Kaiser as Thomas

Doris Kirchner as Henriette

Peter Weck as Franz Fuchs

Ernst Waldow as Onkel Ferdinand

Hugo Lindinger as Salvatini

Walter Buschhoff as Ferrucio

Pero Alexander as Romeo

Sammy Drechsel as Conférencier