Cast
- Richard Münch as Professor Serebrjakow
- Nicole Heesters as Jelena
- Ingrid Andree as Sonja
- Peter Striebeck as Wanja
- Boy Gobert as Astrow
- Elisabeth Goebel as Marja
- Horst-Dieter Sievers as Ilja
- Fiete Krugel-Hartig as Njanja
- Lothar Rehfeldt as Arbeiter