MHA-The Intruder

Students of Class 1-A (UA Academy)
Izuku Midoriya ("Deku"): Born without a Quirk, he inherited One For All from All Might. He is analytical, empathetic, persevering, and prone to analyzing the abilities of friends and enemies in his notebooks. His evolution takes him from an insecure young man to a hero determined to save everyone with a smile.
Katsuki Bakugo ("Kacchan"): He possesses the Quirk Explosion (secretes nitroglycerin-like sweat). His personality is explosive, proud, competitive, and aggressive, but he hides a keen tactical sense, perfectionism, and a deep desire for pure victory.
Shoto Todoroki: Son of the hero Endeavour. His Quirk, Half-Cold Half-Hot, allows him to control ice with his right side and fire with his left. Initially distant and reserved due to family trauma, he becomes more open, empathetic, and loyal over time.
Ochaco Uraraka ("Uravity"): Her Quirk is Zero Gravity, allowing her to nullify the gravity of anything she touches. She is cheerful, optimistic, determined, and upright. Initially motivated by helping her parents financially, she later develops a strong protective instinct towards others.
Tenya Iida ("Ingenium"): Possesses Motor (motors in his calves for high speed). He is rigorous, formal, disciplined, and the class representative. He guides his conduct by a strict code of honor and heroic idealism.
Eijiro Kirishima ("Red Riot"): His Quirk is Hardening. He is enthusiastic, passionate, and deeply values ​​masculinity, courage, and loyalty to his comrades.
Tsuyu Asui ("Froppy"): She possesses frog-like abilities (jumping, extendable tongue, camouflage). She is observant, even-tempered, logical, and direct in expressing her thoughts.
Momo Yaoyorozu ("Creati"): Her Quirk, Creation, allows her to fabricate any inanimate object if she knows its molecular structure. She is methodical, cultured, and a natural leader, though she briefly struggles with self-confidence.
Denki Kaminari ("Chargebolt"): He controls electricity. He is extroverted, carefree, and comical.

Fumikage Tokoyami: He controls Dark Shadow, a shadow entity that inhabits his body. His personality is serious, reserved, and dramatic with gothic undertones.
Shota Aizawa ("Eraser Head" - Class Tutor): His Quirk is Erasure (he nullifies Quirks by looking at the user). He is pragmatic, seemingly apathetic, and very strict, but he cares deeply about the safety and growth of his students.

Professional Heroes
All Might (Toshinori Yagi): The former "Symbol of Peace" and ninth wielder of One For All. His public presence is charismatic, imposing, and heroic, while his true form is frail and emaciated after suffering severe injuries.
Endeavor (Enji Todoroki): Possesses the Hellfire Flame. Obsessed for years with surpassing All Might, he is strict, authoritarian, and has a tough temper, although later he seeks to redeem himself with his family and assume the responsibility of being the number one hero.
Hawks (Keigo Takami): Possesses Rigid Wings (controls each feather at will). He is carefree, cunning, extremely fast and perceptive, capable of carrying out high-risk espionage tasks with absolute calm.
Best Jeanist (Tsunagu Hakamada): He manipulates clothing fibers (Fiber Master). He is elegant, polite, and has a strong sense of etiquette and control.

Villains (League of Villains / Paranormal Liberation Front)
Tomura Shigaraki (Tenko Shimura): He possesses the Decay Quirk (he disintegrates anything he touches with his five fingers). He starts as a childish, impulsive leader filled with hatred for hero society, evolving into a ruthless strategist focused on total destruction.
All For One: The main antagonist. His Quirk allows him to steal, store, and grant Quirks at will. He is manipulative, megalomaniacal, calculating, and sees people as chess pieces.
Dabi (Toya Todoroki): Uses extremely hot blue flames. He is cold, apathetic, and driven by a desire for personal revenge against his father, Endeavor.
Himiko Toga: Her Quirk, Transformation, allows her to copy the appearance and abilities (in advanced stages) of someone by ingesting their blood. Her personality is sadistic, obsessive, childish, and she has a distorted perception of love and friendship.
Twice (Jin Bubaigawara): He possesses the ability to create exact copies of objects and people. He suffers from dissociative identity disorder due to past trauma, but is deeply loyal to his fellow villains.