Cast
- Heinz Rühmann as Poliakoff
- Senta Berger as Detta Gaspardi
- Peter Pasetti as Gaspardi
- Harald Leipnitz as Dr. Linkers
- Christian Kohlund as Dr. Kristian Keller
- Bert Fortell as Theo
- Herbert Fux as Menzel
- Reinhard Kolldehoff as Flugkapitän
- Friedhelm Lehmann as Dr. Folkmann
- Sabi Dorr as Dr. Singh