En sjöman i frack

Adolf Jahr Allan Linde / Fritjof Karlsson

Karin Nordgren Sonja Brink

Gösta Cederlund Carlos Haller

Marianne Aminoff Madeleine Haller

Stig Järrel Professor Petréus

Carl Hagman B.Å.G. Jansson

Einar Axelsson Film director Tallén

Rune Carlsten Max

Olof Widgren Louis

Åke Grönberg Alling

Bror Bügler Borg

Georg Funkquist Anton

Ernst Brunman Konradsson

Carl-Gunnar Wingård Hjalte

Ruth Stevens Gina

Agda Helin Woman at the exposition

Ragnar Widestedt Police officer

Torsten Hillberg Member of the spy network

Åke Claesson Ship's captain

Bellan Roos House maid on the roof