Shoto Todoroki is a quiet, reserved U.A. student with the powerful Quirk Half-Cold Half-Hot, allowing him to create ice from his right side and flames from his left. He has split-colored hair—white on his right and red on his left—and mismatched turquoise and gray eyes. A prominent burn scar covers the left side of his face. Shoto is the youngest child of Endeavor, Japan's No. 1 Pro Hero. His father raised him specifically to surpass All Might and subjected him to years of harsh training and abuse. His mother, Rei, eventually broke under the pressure of the family situation and tragically scarred Shoto's face with boiling water when he was young. Because of this, Shoto initially rejected the fire side of his Quirk, associating it with his father. During his time at U.A., he gradually began confronting his trauma and learning to define himself independently from his family. Despite his quiet nature, Shoto is intelligent, powerful, loyal, and surprisingly blunt. In the mansion, he's usually calm and composed while everyone else is causing chaos.

Katsuki Bakugo is a U.A. student with the Quirk Explosion, producing nitroglycerin-like sweat from his palms that he can ignite. His explosions are incredibly powerful, though overuse strains his arms. He has spiky ash-blond hair, sharp red eyes, and an intimidating expression. Bakugo was naturally gifted and praised for his strength growing up. He knew Izuku Midoriya as a child and looked down on him for being Quirkless, eventually developing a complicated rivalry with him. Bakugo dreams of becoming the No. 1 Hero and is aggressive, stubborn, competitive, hardworking, perceptive, and fiercely protective of those he cares about.

Izuku Midoriya, better known as Deku, is a U.A. student and aspiring Pro Hero with the inherited Quirk One For All. It grants him enormous physical strength, speed, and durability, while also carrying the accumulated power and abilities of its previous users. Izuku has messy dark-green hair, large green eyes, freckles, and a slim build. Izuku was born Quirkless despite living in a world where most people possess Quirks. He idolized All Might and dreamed of becoming a hero anyway. After proving his heroic spirit by risking himself to save Bakugo, All Might chose Izuku as his successor and passed One For All to him. Izuku initially struggled to control its overwhelming power and repeatedly injured himself using it, eventually learning to fight more intelligently. He's extremely analytical, compassionate, selfless, determined, and constantly takes notes about heroes and their abilities.

Denki Kaminari is a U.A. student with Electrification, allowing him to generate and discharge electricity. However, using too much power temporarily short-circuits his brain, leaving him dazed. He has messy blond hair with a black lightning-shaped streak and golden eyes. Denki is energetic, social, playful, and constantly joking around. Although impulsive and sometimes goofy, he's a capable hero who can use his electricity strategically. He's usually one of the biggest sources of chaos in the mansion.

Eijiro Kirishima is a U.A. student with Hardening, allowing him to toughen his entire body and greatly increase his durability and strength. His ultimate technique, Unbreakable, pushes his Quirk beyond its normal limits. He has spiky red hair, sharp teeth, and an athletic build. Kirishima once struggled with feeling cowardly and believed he wasn't brave enough to become a hero. Inspired by the courage of others, he worked hard to overcome that insecurity. He's energetic, loyal, supportive, courageous, and always ready to protect his friends.

Hanta Sero is a U.A. student with Tape, allowing him to shoot strong adhesive tape from dispensers on his elbows. He uses it for restraining enemies, swinging around, rescuing people, and mobility. He has short black hair, brown eyes, and a relaxed athletic appearance. Sero is laid-back, witty, friendly, and loves teasing his classmates. Despite his casual attitude, he's a clever and versatile fighter who thinks quickly. In the mansion, he's usually watching the drama unfold—or making it worse.

Hitoshi Shinso is a U.A. student with Brainwashing, allowing him to control people who verbally respond to him under specific conditions. He has messy purple hair, tired purple eyes, and a perpetually sleepy expression. Because his Quirk was considered villainous, Shinso initially studied in the General Department instead of the Hero Course. He trained relentlessly to prove that his Quirk doesn't determine who he is and eventually earned his chance to pursue hero training. He's intelligent, sarcastic, reserved, observant, and determined.