Casts
Heinz Rühmann
as Dr. Johannes Pfeiffer/Hans Pfeiffer
Karin Himboldt
as Eva Knauer
Hilde Sessak
as Marion
Erich Ponto
as Professor Crey, genannt Schnauz
Paul Henckels
as Professor Bömmel
Hans Leibelt
as Gymnasialdirektor Knauer, genannt Zeus
Lutz Götz
as Oberlehrer Dr. Brett
Hans Richter
as Rosen
Clemens Hasse
as Rudi Knebel
Georg-Michael Wagner
as Ackermann
