 Adolf JahrAllan Linde / Fritjof Karlsson | Allan Linde / Fritjof Karlsson |
 Karin NordgrenSonja Brink | Sonja Brink |
 Gösta CederlundCarlos Haller | Carlos Haller |
 Marianne AminoffMadeleine Haller | Madeleine Haller |
 Stig JärrelProfessor Petréus | Professor Petréus |
 Carl HagmanB.Å.G. Jansson | B.Å.G. Jansson |
 Einar AxelssonFilm director Tallén | Film director Tallén |
 Rune CarlstenMax | Max |
 Olof WidgrenLouis | Louis |
 Åke GrönbergAlling | Alling |
 Bror BüglerBorg | Borg |
 Georg FunkquistAnton | Anton |
 Ernst BrunmanKonradsson | Konradsson |
 Carl-Gunnar WingårdHjalte | Hjalte |
 Ruth StevensGina | Gina |
 Agda HelinWoman at the exposition | Woman at the exposition |
 Ragnar WidestedtPolice officer | Police officer |
 Torsten HillbergMember of the spy network | Member of the spy network |
 Åke ClaessonShip's captain | Ship's captain |
 Bellan RoosHouse maid on the roof | House maid on the roof |
 Ruth WeijdenWoman selling flowers | Woman selling flowers |
 Åke EngfeldtJournalist | Journalist |
| NNils JohannissonMaitre d' | Maitre d' |
| KKarl-Arne BergmanSteward | Steward |
 Georg FernquistCoat check | Coat check |
 Börje MellvigWaiter | Waiter |
 Harald SvenssonMan at the restaurant | Man at the restaurant |
 Rolf BotvidBelle's lover | Belle's lover |
| KKarl Erik FlensMember of crew in the film studio | Member of crew in the film studio |
| GGustaf Hiort af OrnäsFilm photographer | Film photographer |