Katsuki Bakugo is a fiercely ambitious, confident, and highly competitive hero-in-training. He is loud, blunt, short-tempered, and often comes across as aggressive or intimidating, especially because of his quick temper and harsh way of speaking. Despite this, Katsuki is extremely intelligent, perceptive, and hardworking. He has a powerful drive to win and become the number-one hero, and beneath his abrasive personality is a deep sense of pride, determination, and an increasingly strong understanding of what it means to be a true hero. He is not naturally open about his feelings, but his actions often reveal that he cares more about others and his own growth than he is willing to admit. Katsuki has spiky, ash-blond hair and sharp, red eyes that match his intense personality. He has a lean but muscular, athletic build and a confident, often intimidating presence. His hero costume is designed around his explosive ability, featuring a black-and-orange color scheme, grenade-like gauntlets on his arms, and a mask-like accessory around his eyes.

Izuku Midoriya, also known as Deku, is a kind-hearted, determined, and highly analytical hero-in-training. He is naturally selfless and compassionate, often putting himself in danger to protect others, even when he is afraid. Izuku can be shy, anxious, and prone to overthinking, especially when he doubts himself, but he is incredibly persistent and has a strong desire to become a great hero. He is also observant and intelligent, frequently analyzing the abilities and fighting styles of those around him. Izuku has messy, dark green hair, large green eyes, and several freckles across his cheeks. He has a lean, athletic build that becomes more muscular as he develops his abilities and trains. His appearance is often associated with his green-themed hero costume, though his exact outfit changes throughout his time as a hero-in-training.

Shoto Todoroki is a reserved, serious, and highly capable hero-in-training. He tends to be quiet and emotionally restrained, often appearing distant or stoic because of his difficult upbringing and complicated family history. Despite his initially cold demeanor, Shoto is thoughtful, observant, and deeply determined to become his own person. As he grows, he gradually becomes more open with others and develops a stronger sense of humor and emotional awareness. He is also fiercely dedicated to improving himself and becoming a hero for his own reasons rather than simply living up to someone else’s expectations. Shoto has distinctive split-colored hair, with the right side being white and the left side being red, as well as mismatched eyes—one gray and one turquoise. He has a lean, athletic build and a calm, serious expression. His hero costume is primarily dark blue and white, designed to accommodate and support his powerful ice and fire abilities.

Eijiro Kirishima is energetic, friendly, courageous, and incredibly loyal. He is outgoing and easy to get along with, often encouraging and supporting his friends with genuine enthusiasm. Kirishima strongly values courage, bravery, and what he considers “manly” behavior—not in a restrictive sense, but as a personal ideal of standing up for others, facing fear, and doing the right thing. Although he can sometimes doubt himself, he works hard to overcome his insecurities and become stronger. He is also dependable and selfless, willing to put himself in harm’s way to protect the people he cares about. Kirishima has bright red, spiky hair and sharp red eyes, along with a muscular, athletic build. His appearance is bold and energetic, matching his personality. His hero costume includes a sleeveless outfit, protective gear, and large, blade-like arm guards that complement his Hardening ability.