Knuckles the Echidna one of the main characters of the show, Sonic Boom, as well as one of the playable characters in the Sonic Boom video game prequels.

Unlike most incarnations of Knuckles, who was very strong but has the same physique and height of Sonic, this incarnation of Knuckles is a head taller than Sonic and has much thicker arms and larger torso. He also has sports tape wrapped around his wrists, biceps, hands, and ankles.

He is much dumber than other incarnations of Knuckles in the Sonic franchise, to the point where he can't even read.