Under the watch of his unkind realtives, lonely Bosse's luck is changed when he is sent to the land where his real father is the King. In that country, he sets out on a quest, together with his new friend, to destroy the evil Knight Kato.
| Actor | Role |
|---|---|
 Nick PickardMio / Bosse | Mio / Bosse |
 Christian BaleJum-Jum / Benke | Jum-Jum / Benke |
 Timothy BottomsThe King | The King |
 Christopher LeeKato | Kato |
 Susannah YorkThe Weaver Woman | The Weaver Woman |
 Sverre Anker OusdalThe Swordmaker | The Swordmaker |
 Gunilla NyroosAunt Edna | Aunt Edna |
 Igor YasulovichEno / Carpetbeater | Eno / Carpetbeater |
 Lyubov GermanovaJum-Jum's Mother | Jum-Jum's Mother |
 Linn StokkeMrs. Lundin | Mrs. Lundin |
| GGeoffrey StainesThe Spirit | The Spirit |
| AAndrei PetrovJiri | Jiri |