Robert Mayer, der Arzt aus Heilbronn

Fred Düren as officer Emil Stöhr as Robert Mayer Hilmar Thate as Dr. Bohn Karl Kendzia as worker Hausmann Horst Giese as lecturer Gustav Püttjer as sailor Herwart Grosse as Court Councilor Ernst von Zeller Harald Halgardt as Dr. Landerer Willi Schwabe as Guard Gisela Uhlen as Wilhelmine Mayer Fred Mahr as Mayor Walther Suessenguth as Privy Councilor Justus Liebig Kurt Mühlhardt as King Wilhelm of Württemberg Carola Braunbock as Patient Ludwig Trautmann as Professor Charles Hans Vogt as clerk in the mental asylum Martin Flörchinger as Fritz Mayer