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.