Espio the Chameleon is a fictional character from the Sonic the Hedgehog series. He is an anthropomorphic chameleon who mainly serves as an intelligent ninja warrior and a member of the Chaotix Detective Agency. There he works together with Vector the Crocodile and Charmy Bee to solve whatever cases they are given where he puts his skills to good use. While initially a hothead when introduced Espio has since become calm the soft-spoken serious and disciplined person whose wariness and soulful character make him a vital member of his team and balance out the foolishness of his friends.