Arthur

Jodie Resther

Francine Frensky (voice)

Daniel Brochu

Buster Baxter (voice)

Melissa Altro

Muffy Crosswire (voice)

Tracy Braunstein

Baby Kate (voice)

Simon Peacock

Pal (voice)

Tamar Kozlov

Prunella (voice)

Bruce Dinsmore

Walter (voice)

Patricia Rodríguez

Catherine Frensky (voice)

Mitchell David Rothpan

Alex Davidson (voice)

Arthur Holden

Photographer

Sonja Ball

Mrs. Read (voice)

Joanna Noyes

Grandma Thora (voice)

Jonathan Koensgen

Tommy Tibble (voice)

Michael Yarmush

Patrick (voice)

Ricky Mabe

Timmy Tibble (voice)

Jake Sim

Tommy Tibble (voice)

Luke Reid

Alan "The Brain" Powers (voice)

Jacob Ewaniuk

Timmy Tibble (voice)

Michael Caloz

Walter (voice)

Robert Naylor

D.W. Read (voice)

Dallas Jokic

Arthur Read (voice)

Lyle Lettau

Alan "The Brain" Powers (voice)

Samuel Holden

Timmy Tibble (voice)

Siam Yu

Alan "The Brain" Powers (voice)

Jason Szwimmer

D.W. Read (voice)

Oliver Grainger

D.W Read (voice)

Cameron Ansell

Arthur Read (voice)

Paul Stuart-Brown

Alan "The Brain" Powers (voice)

Tyler Brody Stein

Tommy Tibble (voice)

Steven Crowder

Alan "The Brain" Powers (voice)

Drew Adkins

Arthur Read (voice)

Jake Beale

D.W. Read (voice)

Jake Roseman

Tommy Tibble (voice)

Dakota Goyo

Timmy Tibble (voice)

Christopher Lortie

Timmy Tibble (voice)

William Healy

Arthur Read (voice)

Andrew Dayton

D.W. Read (voice)

Ryan Tilson

Tommy Tibble (voice)

Mark Rendall

Arthur Read (voice)

Aaron Grunfeld

Tommy Tibble (voice)