A fairy tale film based on an ancient legend about the founding of Warsaw and the good fairy Sirene of the Mazovian forests, who became the patron saint of the city.
| Actor | Role |
|---|---|
 Hanna SkarżankaKobylicha | Kobylicha |
 Barbara PołomskaSawa | Sawa |
 Igor ŚmiałowskiWarsz | Warsz |
 Hanna ZembrzuskaSyrena | Syrena |
 Alfred ŁodzińskiDziwun | Dziwun |
 Wacław JankowskiSlaweusz | Slaweusz |
 Jan KoecherHermit | Hermit |
 Wiesław MichnikowskiMaciek | Maciek |
 Alicja WyszyńskaKasia | Kasia |
 Eugeniusz SolarskiDeaf Grandfather | Deaf Grandfather |
 Krystyna BorowiczPleciuga | Pleciuga |
| MMaria PawluśkiewiczBogucha | Bogucha |
| JJózef KlejerPolas | Polas |
 Lech OrdonGolas | Golas |
 Adam MularczykNiedolas | Niedolas |
 Bronisław PawlikKot | Kot |
 Włodzimierz SkoczylasKruk | Kruk |
 Stefan FriedmannGrzes | Grzes |
| WWitolda CzerniawskaNot listed | Not listed |
| JJózef CzerniawskiNot listed | Not listed |
 Bronisław DarskiNot listed | Not listed |
 Urszula HałacinskaNot listed | Not listed |
| LLudwik JablonskiNot listed | Not listed |
| HHanna KrzyżanowskaNot listed | Not listed |
 Zdzisław KuźniarNot listed | Not listed |
| KKarol LeszczyńskiNot listed | Not listed |
| JJanina MalikowskaNot listed | Not listed |
| WWladyslaw OlszynNot listed | Not listed |
| HHanna ParysiewiczNot listed | Not listed |
| EElwira RóżyckaNot listed | Not listed |