Katsuki has a characteristic appearance. He has sharp ash-blond hair sticking out in different directions, orange eyes that sometimes seem red, and constantly furrowed eyebrows. He is quick-tempered, rude but soft inside. Became the number one hero after graduating from U.A. His quirk is creating explosions from own hands, the sweat on Katsuki's palms is similar to nitroglycerin, and he can use it to create explosions.