Superworm

Matt Smith

Superworm (voice)

Olivia Colman

Narrator (voice)

Patricia Allison

Butterfly (voice)

Rob Brydon

Crow (voice)

Kobna Holdbrook-Smith

Wizard Lizard (voice)

Paul Thornley

Papa Toad / Beetle (voice)

Cariad Lloyd

Mama Toad / Beetle (voice)

Felix Tandon

Baby Toad (voice)

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Samara Sutariya

Skipping Beetle (voice)

?

Lizzie Waterworth

Spider (voice)