Director: Konrad Wolf
Script: Karl Georg Egel, Konrad Wolf nach dem gleichnamigen Drama von Friedrich Wolf
Cast: Abeßer, Doris (Ruth Mamlock) Burg, Ursula (Ellen Mamlock) Grabbert, Günther (Simon) Grosse, Herwart (Oberarzt Dr. Carlsen) Halgardt, Harald (Dr. Hellpach) Heinz, Wolfgang (Prof. Mamlock) Jung-Alsen, Kurt (Bankier Schneider) Kraus, Agnes (Schwester Hedwig) Krug, Manfred (SA-Sturmbannführer) Kutschera, Franz (Dr. Werner Seidel) Naumann, Günter (Kurt Walter) Sturm, Peter (Dr. Hirsch) Tempelhof, Lissy (Dr. Inge Ruoff) Thate, Hilmar (Rolf Mamlock) Thein, Ulrich (Ernst)
Camera: Werner Bergmann
Editor: Christa Wernicke
Location Sound: Gerhard Wiek
Music: Hans-Dieter Hosalla, Ludwig van Beethoven, (9. Sinfonie)
Production Design: Harald Horn
Costumes: Werner Bergemann
Additional Credits: Dramaturgie: Willi Brückner
Production: DEFA-Studio für Spielfilme, Künstlerische Arbeitsgruppe Heinrich Greif

Set during the Weimar Republic, Professor Mamlock is the story of a renowned Jewish surgeon whose belief in reason and humanity makes him blind to the increasing threat posed by anti- Semitism. Based on Friedrich Wolf’s 1933 play, which was censored by the Nazis, the film was directed by the son of the playwright.