Arthur season 21

The 21st season of Arthur aired on PBS Kids in the U.S. from October 24, 2017 to February 15, 2018. John Lewis guest starred on the episode "Arthur Takes a Stand". This is also the last season where Jacob Ursomarzo voices Arthur, Christian Distefano voices D.W. and Max Friedman Cole voices Brain.

Voice cast
The following list of voice actors below are the actors for the characters in the 21st season of Arthur:
 * Jacob Ursomarzo as Arthur Timothy Read
 * Daniel Brochu as Buster Baxter
 * Christian Distefano as Dora Winifred Read (A.K.A. D.W.), James MacDonald
 * Jodie Lynn Resther as Francine Alice Frensky
 * Mellisa Altro as Mary Alice Crosswire (A.K.A. Muffy)
 * Max Friedman-Cole as Alan Powers (A.K.A. The Brain)
 * Bruce Dinsmore as Shelley Barnes (A.K.A. Binky), David L. Read (A.K.A. Mr. Read), Bailey Carson Belvedere III
 * Sonja Ball as Jane Read (A.K.A. Ms. Read)
 * Arthur Holden as Nigel Charles Ratburn (A.K.A. Mr. Ratburn), Bionic Bunny
 * Joanna Noyes as Grandma Thora Read
 * A.J. Henderson as Grandpa Dave, Edward Edzel Crosswire (A.K.A. Mr. Crosswire and Ed)
 * Tamar Koslov as Prunella Deegan
 * Jessie Kardos as Sue Ellen Armstrong
 * Jake Sim as Tommy Tibble
 * Jacob Ewaniuk as Timmy Tibble
 * Sally Isherwood as Emily
 * Hayley Reynolds as Nadine Flumberghast (D.W.'s imaginary friend)
 * Holly Gauthier-Frankel as Fern Walters
 * Krystal Meadows as Ladonna Compson
 * Eleanor Noble as George Lundgren
 * Maggie Castle as Molly MacDonald
 * Brigid Tierney as Jenna Morgan
 * Robyn Thaler as Catherine Frensky
 * Julie Lemieux as Bud Tucker Compson
 * Bronwen Mantel as Leah MacGrady (Sara MacGrady before the production of the 13th season)
 * Eramelinda Boquer as Rubella Deegan
 * Walter Massey as Francis Haney (Herbert Haney before the production of the 11th season), Mr. Marco
 * Mark Camacho as Oliver Frensky
 * Jane Wheeler as Mrs. Barnes
 * Ellen David as Bitzi Lynne Baxter (A.K.A. Mrs. Baxter)
 * Katie Hutchison as Paige Turner
 * Susan Glover as Mrs. Wood
 * Simon Peacock as Pal
 * Tracy Braunstein as Baby Kate (A.K.A. Kate Read)
 * Michael Yarmush as Slink
 * Scott Beaudin as Rattles
 * Jonathan Potts as Mr. Compson

Production
Oasis Animation produced the 21st season of Arthur.