Characters played by Mike Pollock
Daddy
Characters played by Monica Steuer
Mommy
Characters played by Laurie Hymes
Caillou
Leo
Characters played by Eric Alejandro Reis
Daddy
Leo
Characters played by Ayse Eldek
Mommy
Narrator
Characters played by Marisel Polanco
Caillou
Characters played by Tom Schubert
Daddy
Leo
Characters played by Steph Kenna
Caillou
Characters played by Kaylin Lee Clinton
Mommy
Narrator
Characters played by Emre Yilmaz
Daddy
Leo
Characters played by Ciko Tanik
Caillou
Characters played by Michelle Guanca
Mommy
Characters played by Juho Kokki
Caillou
Daddy
Leo
Characters played by Maite Jimenez
Narrator
Characters played by Masaya Okubo
Daddy
Grandpa
Leo
Characters played by Debora Balardini
Mommy (Portuguese)
Caillou
caillou
Characters played by Saori Goda
Caillou
Characters played by Serra Hirsch
Mommy (French)
Characters played by Heli Sirviö
Mommy
Narrator
Characters played by Heli Sirvioe
Mommy
Narrator
Characters played by Francesca Calo
Sarah
Characters played by Cenophia Mitchell
Clementine
Clementine's Mom
Characters played by Giovanna Almeida
Narrator
Characters played by Sophia Thomas
Jasmine
Jasmine (Clementine's Mommy)
Kids