Arthur

Sonja Ball

Mrs. Read (voice)

Arthur Holden

Mr. Ratburn / Bionic Bunny (voice)

Jake Sim

Tommy Tibble (voice)

Bruce Dinsmore

Mr. Read / Binky Barnes / Bailey (voice)

Daniel Brochu

Buster Baxter (voice)

Jodie Resther

Francine Frensky (voice)

Melissa Altro

Muffy Crosswire (voice)

Tracy Braunstein

Baby Kate (voice)

Simon Peacock

Pal (voice)

Tamar Kozlov

Prunella (voice)

Mitchell David Rothpan

George (voice)

Patricia Rodríguez

Sue Ellen Armstrong (voice)

Roman Lutterotti

Arthur Read (voice)

Ethan Pugiotto

D.W. Read (voice)

Evan Blaylock

Alan "The Brain" Powers (voice)

Jacob Ewaniuk

Timmy Tibble (voice)