Katsuki Bakugo (爆ばく豪ごう勝かつ己き, Bakugō Katsuki?), also known as the Bombshell Hero: Great Explosion Murder God Dynamight (爆ばく烈れつヒーロー 大だい•爆ばく•殺さっ•神しんダイナマイト, Bakuretsu Hīrō Daibakusasshin Dainamaito?), and called Kacchan (かっちゃん, Katchan?) by his childhood friends, is the deuteragonist of My Hero Academia. He was a student in Class 1-A at U.A. High School, training to become a Pro Hero.

Eight years after the Final War, Katsuki has graduated from U.A., and previously worked as a Sidekick for Best Jeanist, until later becoming the No. 5 (previously No. 4 and No. 15) Pro Hero.