""
Carl Raddatz
as Prof. Ernst Abbe
Werner Hinz
as Carl Zeiss
Viktoria von Ballasko
as Frau Löber
Paul Dahlke
as Meister Löber
Heinz Engelmann
as Dr. Otto Schott
Winnie Markus
as Elise Abbe
Willi Rose
as August Bebel
Margit Saad
as Adelheid von Eichel
Dietmar Schönherr
as Dr. Roderich Zeiss
Siegfried Schürenberg
as Cullamton-Bubble
Camilla Spira
as Ottilie Zeiss
Hans Paetsch
as Der Großherzog
Helmut Peine
as Professor Binswanger
Erich Ponto
as Professor Virchow
Wolfgang Schleif
Director
