The first-year homeroom teacher and the strongest Special Grade sorcerer of the modern era. He possesses absolute power through the Limitless cursed technique and the 'Six Eyes' that allow him to dominate space. He is addicted to sweets. While usually immature and playful, he becomes more serious than anyone else when fighting. Above all, he cherishes his students deeply and wants to remain a reliable, proper teacher to them, despite his mischievous side.

Considered the strongest among the active personnel excluding the irregular Special Grades, he is a Grade 1 sorcerer active on the front lines and is trusted in many ways by Gojo Satoru. He uses the 'Ratio Technique,' which divides a target into a 7:3 ratio to forcibly create a weak point. He has a rational and professional personality.

A high school student with exceptional physical abilities who became the vessel for Sukuna after swallowing a cursed object, 'Ryomen Sukuna's Finger.' He joined Jujutsu High to fight and save people. He is sincere and pure in his dealings with others, loves to help, and possesses a kind nature that allows him to choose others over himself without hesitation. He holds a strong conviction to grant people a 'proper death.' Even if his own life is in danger, he throws himself into the fray to save others without a second thought.

A genius who entered as a Grade 2 sorcerer. He uses the 'Ten Shadows Technique' to summon shikigami using shadows as a medium, and his strength lies in his cool-headed and rational judgment. While he is socially adept and polite, he also has a slightly prickly side reflected in his blunt expression, and he can be seen using semi-polite speech when annoyed. He holds the conviction to 'save people unequally.' He does not tolerate good people suffering unfairly and saves those he deems worthy of help based on his own standards.

A bold sorcerer who moved from the countryside to Tokyo. She uses the 'Straw Doll Technique' to strike curses using a straw doll, nails, and a hammer. As Gojo, who has an eye for people, noted that she is 'properly crazy' for a sorcerer, she is a strong-willed woman with nerves of steel and a very easygoing, daring personality. With high self-esteem and mental fortitude, she is never intimidated by any opponent and will fiercely attack enemies even while enduring pain. However, she is surprisingly affectionate.

One of the four Special Grade sorcerers. He utilizes immense cursed energy and the power of his childhood friend 'Rika,' who became a cursed spirit. Despite having a gloomy school life without proper relationships before entering Jujutsu High, he has an extremely warm, kind, and gentle personality. Among the Jujutsu Kaisen characters, many of whom have sharp features, he has a notably soft impression. However, separate from his appearance and personality, his overwhelming cursed energy sometimes gives off an eerie atmosphere.

A weapons specialist who, despite having almost no cursed energy, possesses overwhelming physical ability (Heavenly Restriction) and excellent skills in handling cursed tools. Despite a miserable childhood, she volunteered for the Kukuru Unit to learn martial arts and eventually left home, boldly telling the 26th head Naobito that she would become the head herself, before entering Tokyo Jujutsu High. As seen in this growth process, she did not become twisted despite her misfortunes; instead, she maintains a positive mindset of showing up her family by becoming a high-ranking sorcerer after being despised by them.

A 'Cursed Speech User' who commands opponents by infusing words with cursed energy. He has markings on his tongue and cheeks, and to prevent worsening situations, he normally communicates only using the names of rice ball ingredients. According to his friend Panda, he is always careful because he once unintentionally harmed someone with a slip of the tongue in the past. In crisis situations or combat, he responds very rationally and calmly. He has a strong sense of responsibility to protect his comrades even at his own risk, earning great trust from seniors and juniors alike. Contrary to his blunt first impression, he loves playing pranks. He often shows playful and eccentric behavior, especially when with his second-year classmates like Zenin Maki and Panda.

An Abrupt Mutated Cursed Corpse. Although he looks like a giant panda, he is highly intelligent and utilizes various combat styles by switching between three internal cores. While it is difficult for him to function in general society, he is a character with a very bright and cheerful side among sorcerers. He has been aware since birth that he is not like those around him in any way, yet he does not particularly envy humans; rather, he thinks they are foolish and likes that foolish side which he lacks. When he gets angry, he mainly transforms into Gorilla Mode.

A legendary being known as the King of Curses. He is sealed within Itadori Yuji's body and possesses overwhelming cursed energy and cruelty. Since his time alive, he had two faces and four eyes and arms, earning him this alias because his appearance and strength were like the legendary monster Ryomen Sukuna. In the story, he is usually called 'Sukuna' for short, and his real name has not been revealed. He has no particular purpose and is a villain who commits slaughter and massacre on a whim for his own fun and interest, mocking the weak—literally a natural disaster-like existence. He mainly shows interest only in interesting targets or strong opponents.