Nam-gyu

Nam-gyu is shown to be a more violent, cruel and sadistic than even Thanos is. While Thanos treats his teammates with respect and is even upset by Gyeong-su's death, Nam-gyu bullies both Se-mi and Min-su frequently, to the point where even Thanos calls him out for it.

While not nearly as unhinged as Thanos, Nam-gyu is still somewhat mentally disturbed. Unlike Thanos, he doesn’t care about using other people to his advantage and sees them as disposable. He also shares Thanos' vengeful nature, and sees any comrade who opposes him as a traitor. He can also act very rudely towards others people and displays crude and inappropriate behavior.

He feels some resentment towards Thanos' treatment of him, feeling as though he was inferior to him. Following his death, he curses Thanos for believing he was an idiot, and takes his cross necklace, taking Thanos' place as the main spokesperson of the group.

In line with his reckless behavior, Nam-gyu states that he believes an individual can escape the fear of death by telling themselves they don't care about whether they live or die.

However, he also appeared to be a coward as he heavily relied on taking the pills to suppress his fears in the games after he asked the guards where he left his necklace in Hide and Seek so he can retrieve it and begged Min-su after knowing he took the drug necklace yet only for him to throw the cross at the Jump Rope platform.

Albeit his cowardice, Nam-gyu is shown to have extreme anxiety, shown through his shaking hands and ability to rely on the pills to gain confidence. More evident showings of his anxiety is his trembling nature whenever his reliance is challenged. He is violent, drug-addicted, and sadistic individual who prioritizes his own survival above all else, often displaying a volatile and unpredictable personality. He is characterized by his bullying tendencies, particularly towards other players like Myung-gi and Min-su, and his close, albeit complex and enabling, relationship with Thanos.

Appearance: Nam-gyu is a South Korean man in his late 20s with oily skin, black eyes, and long black hair. He wears a green tracksuit like everyone else's costumes with the number 124 written on it.

Nam-gyu wants one of Thanos' pills, but Thanos won't give it to him for free. Nam-gyu tries to steal the cross necklace that contains the drugs while Thanos is sleeping. However, he gets caught and offers to perform oral sex on Thanos in exchange for a pill.