Sir Charles Hedgehog, also known as Uncle Chuck, is a character that appears in the Sonic the Hedgehog television series. He is an elderly anthropomorphic hedgehog, the uncle of Sonic the Hedgehog, a knight in service to the King of Mobotropolis, and the inventor of the Roboticizer. After Dr. Robotnik rose to power, Charles was roboticized and became one of the many Worker-Bots serving the evil doctor. After approximately eleven years in service to Robotnik though, Sonic managed to restore Charles' free will. Since then, he has started working as a spy for the Knothole Freedom Fighters.