Claudia-Laurie Corbeil

Caillou (voice)

Violette Chauveau

Mousseline / Clémentine (voice)

Nathalie Coupal

Doris (voice)

Gilbert Lachance

Boris / Rexy / Gilbert (voice)

Mario Desmarais

Grandfather (voice)

Johanne Garneau

Léo / André / Miss Martin / Jonathan / Sébastien (voice)

Hugolin Chevrette

Nounours (voice)

Ellen David

Miss Martin (voice)

Annie Bovaird

Caillou (voice)

Pat Fry

Daddy (voice)

Jennifer Seguin

Mommy (voice)

Jesse Vinet

Rosie (voice)