Caillou is a 4-year old boy, the main character, and main protagonist of the TV series and the books, all of the same name.
Trivia[]
- He will meet Pooh, Steven Universe and their friends in Pooh and Steven Universe Meets Caillou.
- He laways gets grounded, but sometimes he gets ungrounded.
- He's got a small sister Rosie and parents and Boris and Doris.