Michael Yarmush

as Arthur (voice)

Oliver Grainger

as D.W. (voice)

Bruce Dinsmore

as Binky / Dad (voice)

Daniel Brochu

as Buster (voice)

Jodie Resther

as Francine (voice)

Melissa Altro

as Muffy (voice)

Luke Reid

as Alan "The Brain" Powers (voice)

Arthur Holden

as Mr. Ratburn (voice)

Sonja Ball

as Mom / Quackers (voice)

Joanna Noyes

as Grandma Thora (voice)

Jonathan Koensgen

as Tommy Tibble (voice)

Ricky Mabe

as Timmy Tibble (voice)

Mark Camacho

as Oliver Frensky / Security Guard (voice)

Mitchell David Rothpan

as George (voice)

Ellen David

as Bitzi / Old Woman (voice)

Harry Standjofski

as Uncle Fred (voice)

A.J. Henderson

as Grandpa Dave (voice)