Whale (voice)
Rob Brydon
Snail (voice)
Sally Hawkins
Narrator (voice)
Diana Rigg
Teacher (voice)
Cariad Lloyd
Fish (voice)
Max Lang
Author
Julia Donaldson
Casting
Karen Lindsay-Stewart
Director
Writer
Daniel Snaddon
Producer
Michael Rose
Martin Pope
Music Editor
Robin Morrison
Original Music Composer
René Aubry
Axel Scheffler
Suzanne Lang
Lead Animator
Samantha Cutler