Karin Berggren is living a double life. In the daytime she is a strict teacher at a boarding school for girls. In the evenings she becomes the star singer at a popular nightclub.
| Actor | Role |
|---|---|
 Karin EkelundKarin Berggren | Karin Berggren |
 Allan BohlinPeter Kullby | Peter Kullby |
 Georg RydebergDr. Viberg | Dr. Viberg |
 Gull NatorpMiss Bruuhn | Miss Bruuhn |
 Eric GustafsonWorms-Pedersen | Worms-Pedersen |
 Hugo BjörneGyllenkruut | Gyllenkruut |
 Eric AbrahamssonNapoleon | Napoleon |
 Hjördis PettersonMiss Hedberg | Miss Hedberg |
 Liane LindenAstrid | Astrid |
 Sigge FürstNot listed | Not listed |
 Ulla HodellMarianne | Marianne |
 Karin NordgrenGertrud | Gertrud |
| DDiana MillerNightclub Singer | Nightclub Singer |
 Ragnar WidestedtNot listed | Not listed |
 Elsie AlbiinNot listed | Not listed |
 Wiktor AnderssonNot listed | Not listed |
 Artur RolénNot listed | Not listed |
 Eivor EngelbrektssonNot listed | Not listed |
 Richard LundNot listed | Not listed |
 Gerd MårtenssonNot listed | Not listed |