Pearl and Gadabout are now a flying doctor trio, caring for creatures including a mermaid, a unicorn and a sneezy lion. However when bad weather forces them to land at the palace, Pearl is locked up by her uncle, the king.
| Actor | Role |
|---|---|
 Lenny HenryNarrator (voice) | Narrator (voice) |
 Patsy FerranPearl (voice) | Pearl (voice) |
 Daniel IngsGadabout (voice) | Gadabout (voice) |
 Hugh SkinnerZog (voice) | Zog (voice) |
 Alexandra RoachMermaid (voice) | Mermaid (voice) |
 Mark BonnarUnicorn (voice) | Unicorn (voice) |
 Lucian MsamatiLion (voice) | Lion (voice) |
 Rob BrydonKing (voice) | King (voice) |
| RRosabel LawsonYoung Pearl (voice) | Young Pearl (voice) |
| TTim HandsAdditional Voices | Additional Voices |