Simon Callow as Grasshopper (Voice)
Richard Dreyfuss as Centipede (Voice)
Jane Leeves as Ladybug (Voice)
Joanna Lumley as Aunt Spiker
Joanna Lumley as Aunt Spiker
Miriam Margoyles as Aunt Sponge
Miriam Margoyles as Aunt Sponge
Miriam Margoyles as Glowworm (Voice)
Pete Postlethwaite as The Old Man
Susan Sarandon as Spider (Voice)
Paul Terry as James (Voice)
Paul Terry as James (Voice)
David Thewlis as Earthworm (Voice)
J. Stephen Coyle as Reporter #2
Steven Culp as James' Father
Cirocco Dunlap as Girl with Telescope
Michael Girardin as Reporter #1
Tony Haney as Reporter #3
Kathryn Howell as Woman in Bathrobe (as Kathrine Howell)
Jeff Mosley as Hard Hat Man
Emily Rosen as Innocent Girl
Susan Turner-Cray as James' Mother
Mario Yedidia as Street Kid
Brett Alo as New York Boy
Jeff Bennett as Centipede (Singing Voice)
Larry Blackman as Beat Cop
Emily Dahl as New York Girl
Phoebe Dahl as New York Girl
Jamie Donovan as Additional Voices (Voice)
Shawn Flanagan as Man in Bathrobe
Trent Lapinski as New York Boy
Sally Stevens as Glowworm (Singing Voice)