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

Charlie Rinn as Wiedröcker

Edith Krüger as Schwester Gundula

Christian Schneller as Dr. Lommel

Ullrich Tesche as 3. Arzt

Wolfgang Hinze as Bergmann