Suggestions by @framefreak

Margo Martindale

as Mrs. June Quick in Caillou: The Unseen Friend

Score: +1

Noah Jupe

as Mark Lowell in Caillou: The Unseen Friend

Score: +1

Richard Jenkins

as Mr. Rachels in Caillou: The Unseen Friend

Score: +1

Rosa Salazar

as Kaitlyn Barrett in Caillou: The Unseen Friend

Score: +1

Michael Stuhlbarg

as Sam Jenkins in Caillou: The Unseen Friend

Score: +1

David Dastmalchian

as Tom Bishop in Caillou: The Unseen Friend

Score: +1

Celia Imrie

as Mrs. Glover in Caillou: The Unseen Friend

Score: +1

Ariana Greenblatt

as Sofia Delgado in Caillou: The Unseen Friend

Score: +1

Javon Walton

as Jayden Morris in Caillou: The Unseen Friend

Score: +1

Brooklynn Prince

as Alisa Green in Caillou: The Unseen Friend

Score: +1

Christian Convery

as Brandon Holt in Caillou: The Unseen Friend

Score: +1

Miya Cech

as Megan Zhang in Caillou: The Unseen Friend

Score: +1

Roman Griffin Davis

as Lucas Bailey in Caillou: The Unseen Friend

Score: +1

Kaitlyn Dever

as Therapist’s Assistant in Caillou: The Unseen Friend

Score: +1

Carrie Coon

as Mayor Holloway in Caillou: The Unseen Friend

Score: +1

Dan Stevens

as Coroner Alex Greer in Caillou: The Unseen Friend

Score: +1

Pedro Pascal

as Officer Martinez in Caillou: The Unseen Friend

Score: +1

Catherine O'Hara

as Neighbor Miss Dunkin in Caillou: The Unseen Friend

Score: +1

Lance Reddick

as Father John (Priest) in Caillou: The Unseen Friend

Score: +1

Toni Collette

as Teacher Miss Martin in Caillou: The Unseen Friend

Score: +1