Espio the Chameleon is a Mobian chameleon who resides in Rainbow Valley on Angel Island, and also a member of the Dragon Kingdom's Shinobi Clan. He is one of the original members of the Chaotix and his ability to camouflage makes him a formidable opponent. While he tends to prefer performing missions on his own, Espio also works well as a team player in the Chaotix. Espio was the first denizen of Knothole to be captured by Dr. Eggman and transported to the Egg Grape Chambers but was subsequently rescued during the rescue effort by Sonic the Hedgehog, Nicole and others, leading to his taking up residence in New Mobotropolis. Following the defeat of Dr. Eggman, Espio was forced to leave the Chaotix as the leader of his clan surrendered to the Bride of Four Houses and ordered him to serve her. However, the Shinobi Clan later broke ties with the Iron Dominion, and Espio rejoined his friends on Angel Island

Has a cannon voice. For reference, check here:

https://www.youtube.com/watch?v=a_CMu2kbSZg