The G.U.N. Commander is a fictional character in the Sonic the Hedgehog series, first appearing in Shadow the Hedgehog. The GUN Federation's highest ranking officer, he is described as having a "heart of stone",and has complete confidence and an iron will. He appears in several cutscenes in the game where he is seen ordering his troops against the Black Arms and Shadow. He also controls the Diablon robot, one of the final bosses of the game. It is not seen if he is inside it or controls it remotely, but since he is in the GUN fortress after the Diablon robot is destroyed, it is more probable that he controls it remotely.