Thanos (Choi Su-bong / Player 230) Looks: Flashy style, famously complaining about missing limited-edition sneakers upon arrival. What they do: A rapper and crypto-debt victim who leads an aggressive faction and pushes for continuing the games. Personality: Erratic, arrogant, attention-seeking, and viciously self-serving. Calls girls señorita

Nam-gyu (Player 124) Looks: Wears the standard green contestant gear with an intense, wild stare. What they do: A former nightclub worker and associate of Thanos who resorts to extreme brutality and drug use to get by. Personality: Sadistic, deeply insecure, animalistic under pressure, and ultimately volatile.

Park Min-su (Player 125) Looks: Ordinary young man styling the standard green uniform. What they do: A timid participant caught in the toxic orbit and bullying of stronger personalities like Nam-gyu. Personality: Exceptionally timid, anxious, and deeply panicked during violent events.

Se-mi (Player 380) Looks: Cool, sharp appearance in her player jumpsuit. What they do: A resilient young contestant trying to navigate the lethal environment alongside Min-su. Personality: Bold, determined, and fiercely self-preserving until her end

Seong Gi-hun (Player 456) Looks: Wears the iconic green track-suit with dark, worn hair and a hardened, exhausted expression reflecting deep trauma. What they do: He re-enters the deadly contest with the sole mission of sabotaging the events from within and saving lives. Personality: Empathetic, determined, deeply traumatized, and morally driven to stop the sadistic competition.

Player 001 (Season 2 / Hwang In-ho / Front Man) Looks: Disguised in the standard player number 001 green uniform, concealing his true overseer identity. What they do: Secretly manages and monitors the arena while manipulating contestants from the inside. Personality: Cold, principle-driven, deceptive, and strictly orderly.

Kim Jun-hee (Player 222) Looks: Wears the green jumpsuit, visibly pregnant during the lethal trials. What they do: Tries to endure the physical horrors of the competition while tied to Myung-gi's past. Personality: Courageous, protective, and desperate to secure a future for her child.

Lee Myung-gi (Player 333) Looks: Clean-cut appearance of a popular online personality and crypto influencer. What they do: A disgraced cryptocurrency scammer trying to survive the arena while confronting people he ruined financially. Personality: Pragmatic, morally gray, defensive, and internally conflicted.

Cho Hyun-ju (Player 120) Looks: Practical and grounded, wearing the numbered green player uniform. What they do: A former military specialist fighting through the arena with specialized survival skills. Personality: Heroic, principled, protective of the vulnerable, and resilient. A transwoman

Name: Mina Player Number: 214 Looks: Mina has extremely bright pink, messy hair with uneven bangs, oversized heart-shaped glasses, glittery hair clips, and exaggerated colorful makeup. She wears her green tracksuit with the sleeves rolled up, mismatched socks, and way too many little accessories. Her appearance is intentionally loud and visually obnoxious, making her impossible to ignore. Personality: Mina is rude, clingy, dramatic, and completely obsessed with Thanos. She follows him everywhere, constantly tries to get his attention, and acts like they're best friends despite him clearly being annoyed. She gets jealous whenever he talks to anyone else. Why Thanos keeps her around: Thanos can't stand her, but she can be useful as a distraction. Her loud appearance and personality naturally draw attention, giving him an opportunity to move around or observe other players while everyone is focused on her. He keeps her nearby purely because she's occasionally useful—not because he likes her.