Alexander Armstrong
Narrator (voice)

Jasmine Bartholomew
Betty (voice)

Duke Davis
Happy (voice)

Alfie Sanderson
Tag (voice)

Leo Templer
Roly (voice)

Poppie Boyes
Norrie (voice)

Dexter Varrall
Roly (voice)

Ollie Chequer
Tag (voice)

Bella Green
Norrie (voice)

Arabella Duffy
Betty (voice)

Amos Greenall
Tag (voice)

Florence Dhunna
Norrie (voice)

Forrest Davis
Happy (voice)

Adam Longworth
Crab (voice)

Ellie Goffe
Tadpoles (voice)

Avalon McNamara
Young Norrie (voice)

Ferris Hicks-Little-Jones
Young Enid (voice) / Young Lamb (voice)

Masami Eagar
Hatsu (voice)

Lucy Montgomery
Hennie (voice)