Heroes
Toshinori Yagi
More commonly known by his hero name, All Might, is the tritagonist of My Hero Academia. All Might is the former No. 1 Hero who bore the title of the world's Symbol of Peace. He teaches Foundational Hero Studies at U.A. High School. All Might was the eighth holder of the One For All Quirk after receiving it from Nana Shimura. He has since passed the torch to Izuku Midoriya, whom he is grooming to be his successor. After using up all the embers of One for All to defeat All For One, All Might retired and ended his era as the world's greatest hero.
Shota Aizawa
Also known as the Erasure Hero: Eraser Head, is a Pro Hero and the homeroom teacher of U.A.'s Class 1-A.
Hizashi Yamada
Also known by his hero name Present Mic is a Pro Hero who teaches English at U.A. High School.
Students
Izuku Midoriya
Also known as Deku, is the main protagonist of My Hero Academia. Though born without a Quirk, he manages to catch the attention of the legendary hero All Might due to his innate heroism and has since become his close pupil as well as a student in Class 1-A at U.A. High School. All Might passed on his Quirk to Izuku, making him the ninth holder of One For All.
Katsuki Bakugo
Also known as Kacchan by his childhood friends, is a student in Class 1-A at U.A. High School, training to become a Pro Hero. He is the deuteragonist of My Hero Academia.
Ochaco Uraraka
Also known by her Hero name Uravity, is a student in Class 1-A at U.A. High School, training to become a Pro Hero. She is one of the main protagonists of My Hero Academia.
Villians
Tomura Shigaraki
Real name Tenko Shimura, is the leader of the League of Villains and the main antagonist of the series. He made his first major appearance as one of the main antagonists of the U.S.J. Arc. Like the rest of the League, his goal is to kill All Might, the "Symbol of Peace", thus destroying the society he represents and to create a new one with a new form of justice in his own image.
Chizome Akaguro
Also known as Hero Killer: Stain and formerly the vigilante Stendhal, is a villain and ex-vigilante that is notorious for having killed many pro heroes. He is the main antagonist of the Vs. Hero Killer Arc.
All For One
The true leader and benefactor of the League of Villains, the primary antagonist of the Hideout Raid Arc and the central antagonist of the series, along with Tomura Shigaraki. Once Japan's most powerful villain and All Might's arch-nemesis, his true motives are unclear and his true identity unknown. His current goal is to raise Tomura to become his eventual successor.