The classic trio in the Bamse universe; Bamse, Lille Skutt och Skalman, is going on a thrilling adventure to the centre of the earth. Their mission is to save the explorer Beanka, who has mysteriously disappeared and seems to be a longlost friend of Skalmans. They do not realize that they have a follower though; a smug cat named Kattja. She is determined to get to their destination - what she believes is a treasure - first. Their expedition include being chased by wolves, spending a night at a spooky hotel, climbing a volcano and finally, maybe finding what they all are searching for. However, the treasure is not always what it seems to be.
| Actor | Role |
|---|---|
 Rolf LassgårdBamse (voice) | Bamse (voice) |
 Johan GlansLille Skutt (voice) | Lille Skutt (voice) |
 Johan UlvesonSkalman (voice) | Skalman (voice) |
 Sissela KyleBeanka (voice) | Beanka (voice) |
 Rachel MohlinKattja (voice) | Kattja (voice) |
 Carina BergfeldtCarina Mullvad (voice) | Carina Mullvad (voice) |
 Olof WretlingHusmusen (voice) / Sjömannen Olof (voice) | Husmusen (voice) / Sjömannen Olof (voice) |
 Jonatan UngePortiern (voice) | Portiern (voice) |
 Sven BjörklundKatten Jansson (voice) / Sjömannen Sven (voice) | Katten Jansson (voice) / Sjömannen Sven (voice) |
| EElliot KnochenhauerTeddy (voice) | Teddy (voice) |
| CCalle MarthinNarrator (voice) | Narrator (voice) |
| KKajsa HerngrenFarmor | Farmor |
| SSiri HamariHundspannsuthyrare (voice) | Hundspannsuthyrare (voice) |
| CCarl EnglénBagare (voice) / Tågkonduktör (voice) | Bagare (voice) / Tågkonduktör (voice) |
| AAnna Robertson KlingbergNot listed | Not listed |
| CCharlie PoehlerNot listed | Not listed |
| IIda SedinNot listed | Not listed |
| LLily PoehlerNot listed | Not listed |
| RRudyard PramstenNot listed | Not listed |