"I'm just a kid who's 4!"
—Caillou singing in his theme song.
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Vital statistics
Name Caillou
Gender Male
Race White
Age 4
2 ½ (in Big Brother Caillou)
3 (in the first 18 episodes of Season 1)
Family Rosie (sister)
Caillou's Dad (dad)
Caillou's Mom (mom)
Gilbert (pet cat)
Rosemary (grandmother)
Hadley (grandfather)
Hair None, bald
Born Unknown

Caillou is a 4-year old boy, and the main character and main protagonist of the TV series of the same name as his name. He is inquisitive, adorable, lovable and curious and his interests include cars and dinosaurs. In the song Caillou can count from 1 to 10 and in a book called Caillou: My First Piano Book (which both feature him playing the piano), He also likes to play the piano, but in Caillou's Got Rhythm, He tried to play the piano.

Interestingly, (even though the theme song says he's 4) Caillou was 2 ½ years old when his little sister Rosie was born (in Big Brother Caillou), and a 3 year old for the first 18 episodes of Season 1, but after the episode "Caillou's Birthday" he turns 4 years old and remains this way for the rest of the series.

He lives in a 2 story blue house on 17 Pine St. (as mentioned in the episode "Where I Live") with his dad, his mom and his sister, Rosie. His grandparents live nearby. Later installments show him attending preschool.

In the earliest episodes, he is normally seen wearing a red sweater with green pants held up by yellow suspenders. In "Big Brother Caillou" he wears a yellow shirt and red overalls. Beginning with "Caillou All Alone", he wears a grayish beige shirt with a bright red collar, blue long shorts, yellow high socks and blue and red hi-top sneakers without laces. In Season 2 and the remainder of the series he wears a yellow shirt with the same red collar (in Season 3 onwards, He has yellow buttons on his red collar of his shirt now), but the rest of his clothing remains unchanged. It is possible that he also wears diapers or training pants in the former two outfits mentioned as evidenced by a thick round shape under his pants in some shots.

Caillou appears in all 229 Caillou episodes and has been voiced by Bryn McAuley (1997-1998), Jaclyn Linetsky (2000-2003), and Annie Bovaird (2003-present).


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Click here to view the gallery.

Caillou's playschool class
Caillou Clementine Emma Jason Jeffery Leo Xavier Layla