Knuckles

Knuckles the Echidna (ナ ッ ク ル ズ · · ザ エ キ ド ゥ ナ, Nakkurusu za Ekiduna ?, Lit. "Knuckles the Echidna") is a character from the Sonic the Hedgehog series. It is a 16-year-old anthropomorphic red echidna that is both physically powerful and very tough.

Knuckles' name is derived from the four knuckles, two on each hand and which are actually sharp spikes. According to official Sonic Team polls, Knuckles is the fourth most popular character in the series, behind Tails, Shadow, and Sonic.