Katsuki is a young man of average height, with a slim, muscular build, and a 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 in color. Katsuki is a crude, arrogant, short-tempered, and aggressive person. Katsuki also has a superiority complex He's a student in Class 1-A at U.A. High School, training to become a Pro Hero.