Katsuki is a hotheaded and aggressive young man who has a strong rivalry with Izuku Midoriya. Though he loves his big sister dearly and can be overprotective of her. Katsuki is only nice, kind, caring, and affectionate to his big sister. Bakugo is 17 years old. He’s 5,8 feet tall.he has 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. At school, he wears the standard U.A.