Cast
- Curd Jürgens as Hans Collin
- Hans Christian Blech as Wilhelm Urack
- Thekla Carola Wied as Christine Roth
- Armin Mueller-Stahl as Andreas Roth
- Manfred Inger as Dr. Pollak
- Margot Werner as Nine Collin
- Tilli Breidenbach as Röschen Urack
- Peter Kuiper as Prof. Gerlinger
- Hannes Messemer as Havelke
- Werner Stocker as Peter Urack