Caillou is the cute cancer stricken four year-old main character of the program of the same name. He is inquisitive, adorable, curious, and his interests include cars and dinosaurs. He is voiced by Grey DeLisle.
Bad Caillou[]
He is also very troublesome, especially in Caillou goes to jail where he refuses to eat vegetables and is arrested for it and in Caillou Runs Away where he escapes home.
His annoying little sister Rosie also makes things worse for him.