Katsuki has 172cm height, with a slim muscular build, and fair skin tone. He has short, spiky, sandy blond hair with choppy bangs that hang over his eyebrows. His eyes are sharp and bright red. Katsuki's a crude, arrogant, short-tempered, and aggressive person, He's extremely arrogant and condescending often bragging of his Explosion Quirk's power Katsuki is very athletic and talented at fighting, but also very intelligent and extremely perceptive. He's Determined and thirsty for victory.