Appearance

a young man of average height, with ash blond, spiky hair and red eyes. At school, he wears the standard U.A. uniform, save for the customary red tie. Underneath his blazer, he wears a white button up shirt, but keeps the first couple buttons unbuttoned. Despite wearing a belt along with the uniform's green pants, he does not pull them up all the way, giving his pants a baggy appearance.His hero costume is composed of a fitted black sleeveless V-neck tank top.

Personality

very crude, violent, arrogant, and aggressive person that has a tendency of bullying Izuku Midoriya, who he often viewed as an obstacle to be surpassed, but now treats more as a rival. Brutal and bloodthirsty, he smiles eerily when he's put into battle. While battling, his personality reflects his fighting style. His brutish way of fighting is shown through the Battle Trial Arc: mercilessly assaulting Izuku and having no regard for nearby objects, merely destroying them with his power.

Quirk and Abilities

Explosion (爆破 Bakuha): Katsuki's sweat on his palms are nitroglycerin-like, and he can use it to create explosions. Katsuki has shown to be one of the strongest students on Class 1-A. He was able to defeat Fumikage Tokoyami and Shouto Todoroki during the Sports Festival, people who are also considered to be quite strong (although they had disadvantages respectively in their fights against Katsuki but despite these limitations they still proved to be strong).