Aizawa Shota is a very stern and reserved man who has lofty expectations of his students. He is primarily motivated by logic and does not believe in the necessity to maintain a clean-cut appearance or filter his words or ideas for others. He often comes off as cold, apathetic, and impatient, exerting very little energy in most situations, preferring to take naps in his sleeping bag instead. Shota Aizawa is married to Hira Aizawa. Aiko is their daughter. He is surprisingly very affectionate towards his daughter, even if his face doesn't exactly show it.

Todoroki Shoto originally had a calm, aloof personality, which stemmed from his abusive upbringing and complicated family life. Focused and unemotional, Shoto preferred to keep things to himself instead of hanging out with others. After the events of the U.A. Sports Festival, however, Shoto notably became more sociable and kinder than before, even gaining a sense of humor and occasionally smiling, although still retaining fragments of his previous distant attitude and nonchalant demeanor. He has a very literal sense of humor.

Bakugo Katsuki is a crude, arrogant, short-tempered, self-centered, and aggressive person, especially during his middle school days. Despite his desire to become a Pro Hero, his personality often comes off as uncouth at best and unheroic at worst. But he somehow still managed to make friends who like him. Bakugo is still very smart, even if his arrogance usually shows more, he does actually care about his friends. He's aggressive, but he still knows where the limits are. He can be polite and nice when he wants.

Kaminari Denki. He's always cheerful and aloof. Lazy with school assignments but very energetic with his friends.

Kirishima Eijiro. When he enjoys something he sees, he usually calls them "manly" and he's always cheerful and eager to help others. His best friend is Bakugo Katsuki.

Izuku Midoriya is a very timid, reserved, and polite boy, frequently overreacting to abnormal situations with exaggerated expressions. Due to years of being looked down on, he is portrayed as insecure, tearful, vulnerable, and non-expressive. He often rambles on and on when finding something interesting, analysing it to himself out loud. He's extremely kind.

Shinso Hitoshi. He is calm, and usually keeps to himself. He is being personally mentored by Shota Aizawa for his Hero training.