Suggestions by @jonathanahnberg2

Devan Cohen

as Tommy Tibble (Seasons 20-22) in Arthur (Nickelodeon Dub)

Jake Sim

as Tommy Tibble (Seasons 14-19) in Arthur (Nickelodeon Dub)

Jake Roseman

as Tommy Tibble (Seasons 12-13) in Arthur (Nickelodeon Dub)

Ryan Tilson

as Tommy Tibble (Seasons 10-11) in Arthur (Nickelodeon Dub)

Tyler Brody Stein

as Tommy Tibble (Season 9) in Arthur (Nickelodeon Dub)

Aaron Grunfeld

as Tommy Tibble (Seasons 7-8) in Arthur (Nickelodeon Dub)

Jonathan Koensgen

as Tommy Tibble (Seasons 1-6) in Arthur (Nickelodeon Dub)

Sally Taylor-Isherwood

as Emily (Seasons 8-25) in Arthur (Nickelodeon Dub)

Vanessa Lengies

as Emily (Seasons 1-6) in Arthur (Nickelodeon Dub)

Colleen O'Shaughnessey

as Prunella Deegan in Arthur (Nickelodeon Dub)

Nika Futterman

as Fern Walters in Arthur (Nickelodeon Dub)

Cree Summer

as Francine Frensky (Seasons 5-25) in Arthur (Nickelodeon Dub)

Alexander Armstrong

as Pal (Speaking Voice) in Arthur (Nickelodeon Dub)

Peter Browngardt

as Uncle Grandpa in Once Upon a Checkerboard (2023)

Phil LaMarr

as Gabriel in Once Upon a Checkerboard (2023)

Kari Wahlgren

as Allison in Once Upon a Checkerboard (2023)

Scott Wolf

as Raiden in Once Upon a Checkerboard (2023)

Alexander Armstrong

as Pal (Speaking Voice) in Arthur (Nickelodeon Dub)

Leslie Carrara-Rudolph

as Pal (Vocal Effects) in Arthur (Nickelodeon Dub)

Tara Strong

as Kate Read in Arthur (Nickelodeon Dub)