Heinz Rühmann as Dr. Hermann Seidel

Wera Frydtberg as Vera Bork

Gert Fröbe as Freddy Blei

Bruni Löbel as Fräulein Dr. Selinski

Ernst Fritz Fürbringer as Oberschulrat Wagner

Hans Leibelt as Direktor Wiesbacher

Klaus Löwitsch as Harry Engelmann

Peter Vogel as Eduard Neureiter

Peter Kraus as Achim Bork

Walter Sedlmayr as Aushilfslehrer

Fritz Wepper as Schüler