A travelling theater-company performs Offenbach's "The Beautiful Helene" when an officer in the audience notices the similarity in appearance between the leading actor Leonard Pettersson and the king Charles XV. With Pettersson dressed as the king and the other actors as the royal suite, they all go to Herrsunda castle where the officer is trying to make an impression on his fiance.
Gösta Ekman
as Leonard Pettersson / Carl XV
Nils Wahlbom
as Casimir Löwencreutz
Gull Natorp
as Adèle Löwencreutz
Birgit Tengroth
as Marie-Louise Löwencreutz
Håkan Westergren
as Charles-Emile Spaak
Olga Andersson
as Countess Ehrencrona
Åke Ohberg
as Carl Henrik von Grimm
Semmy Friedmann
as Italian Fireworks Expert
Theodor Berthels
as Browander
Thor Modéen
as Alexander Dryselius
Maritta Marke
as Anette
Tollie Zellman
as Sophie Strååk
