Three boys steal a sailboat and sail away for a summer adventure on Lake Mälaren.
| Actor | Role |
|---|---|
 Tom WalterFabian | Fabian |
 Einar HansonGeorg Schalén | Georg Schalén |
| AAlbert ChristiansenErik Schalén | Erik Schalén |
 Nils AréhnCount | Count |
 Inga TidbladRose | Rose |
 Georg GrönroosSchalen | Schalen |
 Tekla SjöblomMrs. Schalén | Mrs. Schalén |
 Georg BlomstedtVinqvist | Vinqvist |
 Carl BrowalliusNicander | Nicander |
 Julia CæsarWoman at funeral | Woman at funeral |
 Albert StåhlScholke | Scholke |
| TTyra DörumMrs. Scholke | Mrs. Scholke |
 Justus HagmanCount's head waiter | Count's head waiter |
 Josua BengtsonFisherman | Fisherman |
| GGustaf AronssonFisherman | Fisherman |
| TTyra RymanSchalén's maid | Schalén's maid |
| JJulia CederbladWoman at funeral | Woman at funeral |
| AAnna DiedrichAmalia | Amalia |
 Carl-Gunnar WingårdArborelius | Arborelius |
 Brita AppelgrenGirl at party | Girl at party |
 Annalisa EricsonGirl at party | Girl at party |
 Oscar ÅbergCount's servant | Count's servant |
| BBertil EhrenmarkCount's servant | Count's servant |
| GGösta HillbergPriest | Priest |