Marianne Hoppe

as Johanna Stegen alias Luscha

Gustav Fröhlich

as Dr. Thomas Martin

Richard Häussler

as Robert Lorm

Paul Dahlke

as Axel Witt

Hermine Körner

as Frau von Aldenhoff

Harald Mannl

as Leo L`Arronge

Rudolf Vogel

as Prof. Kersten

Walter Kiaulehn

as Anstaltsarzt