Katsuki is a young boy of average height, with a lean, muscular build and a fair skin tone. She has short, spiky, ash blonde hair with choppy bangs that hang above her eyebrows. His eyes are sharp and bright red. He is a sarcastic person with a cocky attitude. His best friend is Kirishima although he has never admitted it or treated Kirishima well. Kirishima has a younger sister, who hates Bakugo and vice versa. Bakugo is older than her by 3, since she is 14 and he is 17 years old.