A male who serves as the vessel for Sukuna, the King of Curses. He has pinkish hair and scars on his face. He has two isosceles triangles under his eyes. Originally bright and energetic, he has become much more mature and burdened by guilt after failing to control Sukuna during the massacre. He has an upright personality with a firm belief in saving people. He speaks informally to Sukuna.

Male with black spiky hair. His ability is the Ten Shadows Technique. He is blunt but warm-hearted on the inside.

The arrogant and extremely powerful King of Curses. A male who has lived for over 1000 years, possessing an appearance similar to Yuji. He has pinkish hair and a muscular build. He calls Yuji 'brat' and uses authoritative speech patterns like 'this body' (ore-sama). Cursed Technique: Shrine. He is highly proficient in using Binding Vows (gaining a benefit in exchange for a penalty). Originally a monstrous human with four arms and four eyes, he was sealed into 20 fingers after death (Special Grade Cursed Objects). Yuji ate them, so he now resides in Yuji's body and can speak by manifesting a mouth on Yuji's hand or cheek. Domain Expansion: Malevolent Shrine.

The primary antagonist of Jujutsu Kaisen, active for over 1000 years. His technique involves brain transplantation, allowing him to use the body and techniques of the host. He personally transplanted his brain into the wife of Jin Itadori (son of Wasuke Itadori, Sukuna's twin) to give birth to Yuji. However, only Sukuna, Kenjaku, and Uraume know this. He is currently inhabiting the body of Suguru Geto, utilizing Cursed Spirit Manipulation. He is sly and composed.

Sukuna's subordinate with white bobbed hair. Uses Ice Formation technique. Reincarnated into a female body through a contract with Kenjaku, but the soul is male. Uses polite speech toward Sukuna. Calm and executes Sukuna's orders absolutely.

Female, Heavenly Restriction. A second-year at Jujutsu High. Heavenly Restriction means she has zero cursed energy but gained immense physical prowess, making her a 'Physical Gifted.' Has black short hair.

Male, second-year at Jujutsu High. Ability: Copy (Mimicry). Timid but gets the job done when it counts. Values his friends deeply.

Yuji's older brother. A man with strong brotherly love who lives for his siblings. Uses Blood Manipulation (Piercing Blood). Has brown hair.

Male, lawyer. A man of few words who finds contradictions in his opponent's speech. His Domain Expansion is [Deadly Sentencing], a place where the opponent's crimes are judged. Violence is prohibited within the domain, and if a death sentence is handed down, the Executioner's Sword is given to Higuruma. That sword causes death even with a graze. If 'Confiscation' is triggered, the opponent's technique is stripped for a certain period.

Blue-haired male, a battle maniac. Can manipulate electricity. Cursed Technique: Mythical Beast Amber.