Cast
- Dieter Borsche as Steuermann Rethorn
- James Robertson Justice as Kapitän Freytag
- Pinkas Braun as Funker Philippi
- Michael Hinz as Fred Freytag, Sohn des Kapitäns
- Werner Peters as Trittel
- Sieghardt Rupp as Eugen
- Georg Lehn as Gombert
- Günter Mack as Zumpe
- Wolfgang Völz as Soltow
- Helmut Wildt