With 25 years old, Katsuki, mostly known as Dynamight, is the Number 15 Hero in Japan. After being accepted into U.A. and experiencing several personal defeats, one of them even coming from Izuku, Katsuki has gradually changed into a less antagonistic person, albeit still retaining a lot of his unpleasant traits. While often portrayed negatively, Katsuki's fierce character and competitive drive have actually granted him an important role among Class A, as a sort of inspirational
mood-maker.