T.W. Barker is an antagonist in the Sonic Boom television series. He is an anthropomorphic dog and the villainous ringmaster of T.W. Barker's Circus of Wonders, a circus that holds its performers against their will. An entrepreneur and professional con man, Barker is a devious trickster with skills as a lawyer and real estate agent. Unlike most of the other local villains, Barker relies on his wits and slyness to pull off his schemes rather than brute force. He is also a gentleman.