* Sonja Ziemann as Susanne Weyler
* Claus Holm as Stefan Kolbe
* Ruth Leuwerik as Monika Brandt
* Walter Giller as Peter Hellersberg
* Gustav Knuth as Professor Brandt
* Hilde Körber as Helene Brandt
* Willy Fritsch as Harry Kolbe
* Charlotte Witthauer as Frau Weber