Seong Gi-hun returns to the deadly survival competition three years after winning Season 1, with the goal of dismantling the organization from the inside.Gi-hun re-enters as Player 456.The Front Man (Hwang In-ho) infiltrates the games in secret as Player 001. When Gi-hun launches an armed rebellionSeong Gi-hun's personality shifts dramatically from the naive, debt-ridden, and easily manipulated gambler of Season 1 into a mature, serious, no-nonsense, and driven individual

In-ho enters the new round of games in disguise, taking on the fake identity of Oh Young-il and wearing Player 001—mirroring Oh Il-nam's strategy from the first season. His return is framed as a direct test of wills against Seong Gi-hun, with In-ho trying to prove that human beings are inherently selfish and irredeemable, while Gi-hun fights to prove people can make a better choice.Cold, Calculated MachiavellianismPrincipled yet Hypocritical Strictness Deceptive and Undercover (as Player 001 / Oh Young-il): In Season 2, he infiltrates the games under the alias Oh Young-il supportive, empathetic comrade and survivor to bond with Seong Gi-hun and the other contestants, all while manipulating events behind the scenes to break Gi-hun's faith in humanity.

morally grey and deeply complex character whose personality shifts from a charismatic, hyper-logical crypto influencer into a ruthless, self-preserving pragmatist.Formerly known as the crypto YouTuber "MG Coin", Myung-gi relies heavily on logic, strategy, math, and manipulation. He is often dubbed "Mr. Rational" by other contestants.Narcissistic & Conditional Affection: While he claims his primary motivation is to win the prize money to protect his ex-girlfriend, Kim Jun-hee, and their baby, his affection is tied to wealth. He believes financial success will force Jun-hee to forgive and admire him, showing little regard for her actual emotional boundaries or safety. No 333

mixes a desperate desire to belong with deep-seated vulnerabilityPeople-Pleaser and Chameloeon: Dae-ho initially presents himself as an enthusiastic, cheerful, and loyal ally—even lying about serving in the Marine Corps just to fit in and feel worthy alongside Seong Gi-hun and the other players.Deep Insecurity and Fear of Failure: Grown up under the heavy, masculine expectations of an overbearing father and four sisters, he carries a lifelong terror of disappointing others or being seen as weak.Anxiety and Trauma Responses No 388

a former South Korean military Special Forces sergeant whose personality combines fierce loyalty, combat discipline, and deep vulnerability.She shows compassion toward fellow players and frequently looks out for those around her, such as risking her life during "Red Light, Green Light" to help an injured player alongside Seong Gi-hun.Beneath her tough military exterior, she carries emotional and internal struggles. Having faced severe rejection from her family, loss of employment, and social isolation after beginning her gender transition, she can appear unconfident or self-conscious about her place among others.No 120

Headstrong and Fiery: She is honest, opinionated, and quick to speak her mind. She frequently rebukes and scolds her son, Yong-sik, for his poor choices and compulsive gambling.Maternal and Protective: Her entire existence in the games is driven by her love for her son, whom she followed into the competition to pay off his debts. Beyond her son, she exhibits deep maternal instincts, helping Kim Jun-hee through her pregnancy and stepping in to protect others.Compassionate and Empathetic: Beneath a sometimes rough or nosy exterior, she shows immense kindness. She comforts those around her No 149

Deeply Maternal & ProtectiveResilient & Level-Headed: Described as a pragmatic and strong-willed young woman who tries to navigate impossible, high-stress circumstances.Wary and Resentful of BetrayalCautious Ally No 222

Choi Su-bong Arrogant & DelusionalChemically Altered & Erratic: He is heavily addicted to psychedelic and illicit drugs, which he carries in a pillbox and shares with alliesleading to unpredictable, hyperactive, and chaotic behavior.Aggressive & RuthlessCringely Flirty & Performer-like:Vulnerable & Transparently Wicked: Underneath his loud, boastful exterior, he is a broken, suicidal man crushed by financial ruin No 230

timidity, deep insecurity, and a struggle to stand up for himself.Timid and Insecure: He enters the games crushed by heavy debt from a housing rental scam. He lacks self-confidence and naturally tends to follow or look to others for safety rather than asserting control.Easily Influenced and Dependent No 125

no-nonsense, and quietly principledIndifferent and Collected: She generally appears calm, detached, and indifferent to the madness around her, preferring to handle things her own way.She is self-preserving and realistic; she has no issue cutting ties or ditching allies Secretly Compassionate: Beneath her cold exterior, she shows genuine kindness. She treats Min-su Fiery Under Pressure: While she stays composed most of the time, she can lose her temper when pushed too farsuch as violently confronting Nam-gyu over his reckless behavior or screaming and swearing during high-stakes clashes. No 380