Frozen heart tells the story of Roald Amundsen, a well known polar hero from Norway.
| Actor | Role |
|---|---|
| SSissel EndresenNarrator | Narrator |
 Bjørn FlobergAmundsen (voice) | Amundsen (voice) |
 Espen SkjønbergNansen (voice) | Nansen (voice) |
| RRoald AmundsenHimself (archive footage) | Himself (archive footage) |
 Benito MussoliniHimself (with Nobile) (archive footage) | Himself (with Nobile) (archive footage) |
| FFridtjof NansenHimself (archive footage) | Himself (archive footage) |
| UUmberto NobileHimself (archive footage) | Himself (archive footage) |