Heinz Rühmann as Dr. Alexander

Hertha Feiler as Adele

Graziella Granata as Dr Jaspers

Charles Regnier as Professor Sauermann

Rudolf Schündler as Staatsanwalt

John van Dreelen as Rechtsanwalt Kellermann

Balduin Baas as Judge

Herbert Bötticher as Salesman

Sammy Drechsel as Reporter

Alexander Allerson as Tommy

Monica Teuber as Ulrike

Inge Marschall as Nurse

Angela Hillebrecht as Ilse

Hans Epskamp as Police Doctor