Viktor de Kowa as Peter Voss

Karl Schönböck as Bobby Dodd

Hans Leibelt as Van Gelder

Georg Thomalla as Max Egon Flipp

Ursula Herking as Marietta

Walter Gross as Steward

Victor Janson as Big Bill

Walter Bechmann as Kapitän der „Poseidon“

Else von Möllendorff as Polly Petterson

Fritz Kampers as Fritz Mohr

Erwin Biegel as Blinder Passagier