Mole decides it's time for an adventure! It isn't long before he discovers all the fun and thrills of the riverbank in the company of his new found friend, Rat.
| Actor | Role |
|---|---|
 Richard BriersRat | Rat |
 Peter DavisonMole | Mole |
 Paul EddingtonBadger | Badger |
 Hugh LaurieToad | Toad |
 Imelda StauntonVoice | Voice |
 Gary MartinOtter / Various | Otter / Various |
| RRichard TateVoice | Voice |
 Ellie BeavenVoice | Voice |