Annie Bovaird as Caillou (voice)

Merlee Shapiro as Storyteller (voice)

Jennifer Seguin as Mom (voice)

Pat Fry as Dad (voice)

Brigid Tierney as Clementine (voice)

Jesse Vinet as Rosie / Elf Kid (voice)

Pauline Little as Grandma / Elderly Woman (voice)

George Morris as Grandpa (voice)

Jason Szwimmer as Elf (voice)

Amanda Tilson as Sarah (voice)

Vince Davis as Leo (voice)

Dean Patrick Fleming as Fireman Eric (voice)

Liz MacRae as Leo's Mom (voice)

Walter Massey as Santa (voice)

Jennifer Morehouse as Firewoman Stacie / Elderly Woman (voice)

Terry Simpson as Mailman (voice)

Amanda Strawn as Teacher Loraine (voice)

Brian Wrench as Jonah (voice)