• Justin as Caillou
  • Nick as Leo
  • Justin's Mom as Doris
  • Justin's Dad as Boris
  • Ben as Mr. Washington
  • Matt as Billy
  • Caroline as Sarah
  • Kate as Rosie
  • Lizzie as Grandma
  • Timothy as Grandpa
  • Anna as Clementine
  • Duncan as Gilbert
  • Pierce and Reed as Jason & Jeffery
  • Libby as Mrs. Martin

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