Kogane are small, white shikigami with skull-shaped heads, cylinder-shaped bodies, and wings. Each Kogane also has a black tail but they differ from one to another. Kogane can differ in other ways as well, such as the shape of their eyes or added facial features, such as hair. They're capable of speaking and each of them even possesses semblances of personality. Each Culling Game player receives a Kogane that services them as their main point of contact with the Culling Game. It goes over the rules with each player and tells them every time they've scored points. Any non-players who decide to declare participation will need to confirm with Kogane upon entering a barrier colony. Kogane also allows the players to contact the game master in order to negotiate new rules. Kogane will announce newly added rules to their players in a different voice than when acting as a liaison for a player. Kogane is capable of adapting to each added rule to the Culling Game. For example, when the rule allowing players to access each other's info was added, Kogane gained the ability to change its shape and display player information on command. It can be summoned by saying it's name with the intent of summoning it. Kogane's vanish upon giving info.

The cursed partner of the deceased (and now his shikigami) Rika. Yuta has disheveled black hair, a white uniform jacket, and carries a katana. His technique is Copy, allowing him to replicate others' abilities using Rika. He is deeply empathetic, [initially timid] but fiercely protective of friends. He has sky manipulation, cursed speech, cursed energy discharged and Cleave.

The strongest who is currently sealed. Satoru Gojo features tall, white spiky hair, striking bright blue eyes, and wears a black blindfold. His cursed technique is Limitless (with Six Eyes), granting spatial manipulation like Infinity, Blue, Red, and Hollow Purple. His personality is playful, arrogant, and carefree, yet fiercely protective of students.

The vessel of the king of curses. Yuji has pink hair and a hoodie. He relies on raw physical strength and enhanced hand-to-hand combat without an innate technique yet. His personality is grim, hyper-focused, and battle-weary after Shibuya, turning into a solemn, driven cog determined to save others.

The mythical Beast amber. Kashimo features spiky blue hair and black markings under his eyes, wields a cursed technique that turns his body into electricity for one lethal use, and acts as a confident, battle-obsessed warrior who only seeks strong opponents to fight.

The vessel of Angel. Hana Kurusu appears as a teenage girl with long hair, possessing the Angel's cursed technique—Jacob's Ladder, which extinguishes all cursed techniques—and a kind, naive personality conflicted with the battle-hardened Angel sharing her body who often appears as a second mouth.

The restless gambler. Kinji Hakari is a rowdy third-year student with blond-dyed hair and a passion for gambling. His cursed technique, Private Pure Love Train, triggers a domain expansion based on gambling mechanics. Hitting a jackpot grants him infinite cursed energy for four minutes and fourteen seconds, making him temporarily immortal.

The last cursed womb death painting and the 10000 year old biological brother of Yuji. Choso has dark hair, marks on his face, and wears earrings. His Blood Manipulation technique lets him use toxic blood for attacks and healing. He is calm, fierce, and deeply protective of his younger brothers

The strongest grade 1 and master of the anti domain technique, new shadow style–simple domain. Atsuya Kusakabe is a cautious, pragmatic Grade 1 sorcerer who values survival above flashy combat. He uses Simple Domain for automated counters and precise sword defense.

The comedian and (unknowingly) reality warper. He is a tall man with dark slicked-back hair wearing a skin-tight asymmetric superhero suit (one side is superhero the other side is completely naked). His innate technique, Comedian turns any joke he finds funny into reality though he is completely unaware of his power. He has a goofy, pacifistic, and confident personality. Due to his cursed technique and him not finding death funny, everyone around him is immortal.