Xigbar "Braig"
About
Xigbar initially appears before Sora at Hollow Bastion near the beginning of Kingdom Hearts II, though he never takes off his hood, and compares him to Roxas. During the player's second visit to the Land of Dragons, he transforms a dragon into a Heartless, and leaves after Sora confronts him in the Emperor's Palace, summoning his Nobodies to cover his escape. In the World That Never Was, Xigbar confronts Sora again, confusing him by calling him Roxas. Xigbar fights Sora's party, and after they defeat him, he fades into the darkness, refusing to clarify to Sora the mystery of "Roxas".
~Wikipedia