Earth Day | Caillou Cartoon

► Click to Subscribe to CAILLOU: Visit our website! Follow us for all the latest Caillou news! ► Facebook ► Twitter Meet Caillou, the lovable 4 year old with a big imagination! Caillou experiences all the wonders of being a child that audiences around the world can relate to; first day of school, caring for a pet, learning a new sport or spending time with family. Preschoolers will feel right at home with trusted pal Caillou, his sister Rosie and all their family and friends as they experience the everyday adventures of childhood. Caillou lives in a blue house at 17 Pine Street with his mother, father, and his younger sister, Rosie. He has many adventures with his family and friends and uses his imagination in every episode. Caillou, nicknamed The Prince of Imagination, is the title character of the show