Espio the Chameleon is an anthropomorphic chameleon, who mainly serves as an intelligent ninja warrior and a member of the Chaotix Detective Agency alongside Vector the Crocodile and Charmy Bee. Together, the trio solves whatever cases they are given, where Espio is able to put his skills to good use. He also possesses the ability to blend in with his environment. Espio is a calm and quiet chameleon, but also overly cautious and disciplined.