|Birthday:|| February 6|
|Relatives:|| Boris (biological father)|
Doris (biological mother)
Rosie (biological sister)
Mrs. C (adoptive mother)
Ruby (adoptive sister)
Toad (adoptive brother)
|Friends:|| Kai Lan|
|Enemies:|| Yellow Face|
Koopalings (Ludwig von Koopa, Lemmy Koopa, Roy Koopa,Iggy Koopa Wendy O. Koopa, Morton Koopa Jr., Larry Koopa)
|Appearences and Voices|
|First appearance:||Caillou prank calls people and gets grounded|
Caillou is the 4 year old trouble maker who is adopted by Mrs. C and came from Canada.
Before he got kicked out by his real parents, he went to the baseball game with his family and ran to the baseball pitch. Later, he got kicked out by his parents due to many troubles he had cause and he got adopted by Mrs. C as his adoptive mother.
He had a bald head, brown eyeleashes, black eye, yellow shirt with white line, dark blue pants, white socks with red line, and red shoes.
According to people's grounded videos, he was a careless, rude, arrogant, evil, blasphemous, ruthless, cold-hearted, cold-blooded, satanic, monstrous, complex, manipulative, psychopathic, sexist, racist, hypocritical, vindictive, power-hungry, corrupt, oppressive, vicious, tyrannical, dark, shadowy, uncaring, cunning, prejudiced, judgmental, intolerant, abusive, murderous, loathsome, genocidal, intimidating, vengeful, unintelligent, dishonest, strict, anti-semitic, ominous, sadistic, lustful, villainous, short-tempered, insane, antagonistic, deadly, dangerous, devilish, vulgar, weak-willed, machiavellian, narrow-minded irresponsible, jealous, lazy, harsh, foul, and perverted young boy who always delighted in causing trouble.
- Caillou prank calls people and gets grounded
- Caillou grounds Firey and gets grounded
- Troublemakers steal Koopaling Shells
- He tried to murder Rosie over an orange
- His private part size is 0.1 inches
- He is Racist
- Caillou has a fetish for hairy legs
- When asked to share, he immediately murders the person whom he has to share with
- He likes gore
- Apparently only in Duncan Pictures' series, he is claimed to be a homosexual.
- He cooked and ate Rosie with Dora one time.
- He thinks anime like Sailor Moon, The Melancholy of Haruhi Suzumiya, Panty and Stocking with Garterbelt and Pokemon are the worst in his opinion
- He tried to shut down Vocaloid
- He blew up Awesome Mountain
- He got pregnant with triplets one time
- He destroyed the elevator after missing it
- His Username is YoutubeWarsandKillingBabiesFTW WorldPeaceandMarkiplierFTL
- His eye supposed to be small, eyebrow supposed to be thick, and face supposed to be oval