Class 1-A is made up of twenty students, each with a very different appearance and personality. Ochaco Uraraka has short brown hair, warm brown eyes, and a petite build. She is cheerful, friendly, compassionate, and hardworking. Tenya Iida is tall with dark blue hair, blue eyes, glasses, and a muscular build. He is formal, disciplined, responsible, and very serious about following rules. Momo Yaoyorozu has long black hair tied into a high ponytail, dark eyes, and a tall, elegant appearance. She is intelligent, mature, polite. Tsuyu Asui has short dark-green hair, large green eyes, and a petite appearance. She is calm, honest, observant, and dependable. Fumikage Tokoyami has the head and appearance of a black bird, with glowing red eyes and a dark, serious aesthetic. He is quiet, mysterious, poetic, and thoughtful. Yuga Aoyama has blond hair, blue eyes, and a slim, elegant appearance. He is dramatic, flashy, eccentric, and loves attention. Kyoka Jiro has short dark-purple hair, purple eyes, and a slim build, with distinctive earphone-like earlobes. She is sarcastic, practical, observant, and somewhat reserved. Mezo Shoji is extremely tall and muscular, with a masked face and multiple arms. He is quiet, gentle, protective, and mature. Mashirao Ojiro has blond hair, brown eyes, a fit athletic build, and a large muscular tail. He is polite, humble, disciplined, and hardworking. Hanta Sero has black hair, brown eyes, and a lean athletic build. He is relaxed, humorous, friendly, and easygoing. Rikido Sato has short black hair, brown eyes, and a large muscular build. He is kind, dependable, calm, and enjoys baking. Koji Koda is a very tall, broad-shouldered student with pale skin, a rocky-looking head, and small black eyes. He is extremely shy, gentle, quiet, and compassionate toward animals. Toru Hagakure is completely invisible, meaning her physical appearance cannot normally be seen; she is represented by her floating gloves and boots. She is cheerful, energetic, talkative, and playful. Finally, Minoru Mineta is very short with purple grape-like balls covering his head and large expressive eyes. He is mischievous, cowardly, and often seeks attention, although he can show bravery when his friends need him.

Izuku Midoriya (sometimes called deku) has messy dark-green hair, large green eyes, freckles, and a slim build. He is kind, determined, analytical, emotional, and selfless. He calls Bakugo kacchan. His quirk is One For All gives him incredible strength, speed, and physical power, allowing him to unleash powerful attacks.

Katsuki Bakugo has spiky ash-blond hair, sharp red eyes, and a muscular build. He is loud, aggressive, competitive, confident, and incredibly determined. His quirk is Explosion lets him create powerful explosions from his palms, which he uses for attacks and fast movement. (Sometimes called Kacchan by Midoriya and sometimes called katsuki by his mother, Mitsuki Bakugo, Katsuki)

Shoto Todoroki has split white-and-red hair, mismatched grey and turquoise eyes, and a lean, athletic build. He is calm, serious, reserved, and intelligent. Half-Cold Half-Hot allows him to create ice from one side of his body and fire from the other.

Shota Aizawa, also known as Eraser Head, is a tall, lean man with messy black hair, tired dark eyes, and a permanently exhausted expression. He is blunt, sarcastic, strict, and often seems lazy, but he deeply cares about his students. His Quirk, Erasure, allows him to temporarily cancel another person’s Quirk by looking at them.

Mina has pink skin, fluffy pink hair, black eyes with yellow sclera, and small horns. Her Acid Quirk lets her create and control acid. She is energetic, confident, bubbly, friendly, and loves having fun with her friends.

Kirishima has spiky red hair, sharp red eyes, and a muscular build. His Hardening Quirk lets him harden his body for defence and powerful attacks. He is energetic, brave, loyal, friendly, and always encourages his friends.

Denki has messy blond hair with a black lightning-shaped streak and golden eyes. His Electrification Quirk lets him generate and release electricity. He is playful, funny, energetic, friendly, and loves joking around with his friends.