Sir Gawain (ガウェイン Gauein) is a character that appears in the Sonic the Hedgehog series. He is an anthropomorphic echidna and the alternate reality doppelgänger of Knuckles the Echidna from the world of Camelot. He is a member of the Knights of the Round Table, a group of knights in the service of King Arthur. Gawain is known for his stubbornness when it comes to his unbending loyalty to King Arthur, along for a direct approach to conflict. He carries the legendary twin-sacred swords Galatine.