En sjöman i frack

Birger Lensander as Film extra Bror Bügler as Borg Torsten Hillberg as Member of the spy network Åke Engfeldt as Journalist Rune Carlsten as Max Gösta Cederlund as Carlos Haller Bellan Roos as House maid on the roof Ruth Weijden as Woman selling flowers Börje Mellvig as Waiter Harald Svensson as Man at the restaurant Ernst Brunman as Konradsson Carl-Gunnar Wingård as Hjalte Rolf Botvid as Belle's lover Adolf Jahr as Allan Linde / Fritjof Karlsson Ruth Stevens as Gina Georg Fernquist as Coat check Stig Järrel as Professor Petréus Olof Widgren as Louis Ragnar Widestedt as Police officer Marianne Aminoff as Madeleine Haller Åke Claesson as Ship's captain Karin Nordgren as Sonja Brink Carl Hagman as B.Å.G. Jansson Einar Axelsson as Film director Tallén Åke Grönberg as Alling Georg Funkquist as Anton Agda Helin as Woman at the exposition

Arthur Spjuth Production Manager, Production Design Bibi Lindström Production Design Börje Larsson Writer Ragnar Arvedson Writer, Director Hilmer Ekdahl Director of Photography Rolf Husberg Editor Alva Lundin Title Graphics