All Cast
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)
Samara Sutariya
Skipping Beetle (voice)