Heidelberg teenagers make jazz music.

Walter Giller
as Walter Gerber

Gardy Granass
as Ruth Degener

Michael Cramer
as Manfred Hallersperg

Wera Frydtberg
as Erika Hallersperg

Robert Freitag
as Kaplan Sommer

Loni Heuser
as Frau Hallersperg

Käthe Haack
as Anna Gerber

Ernst Waldow
as Tankstellenbesitzer Magenau

Erna Sellmer
as Fräulein Luise

Gisela Schlüter
as Susi Viereck