Oh Jun-yeong is a serial hacker and murderer who steals a victim's identity to approach Lee Na-mi. He clones her phone, monitors her life, destroys evidence, imprisons her father, manipulates her against Jeong Eun-joo, and forces a deadly confrontation before being arrested.
Protagonist, a young man in his 20s who moves to Seoul for an internship. Moves into the ominous Eden Studio due to financial constraints. Tolerates abnormal residents like his neighbor until mysterious occurrences make him fear the studio's inhabitants.
Highly skilled assassin seeking revenge and uncovering corporate conspiracies.
Former national team sprinter who quit the sport due to a specific case. He transitions into a career as a sports agent. He meets Oh Mi-joo, and she feels their encounter was destined.
The primary antagonist who boards the flight after suspicious airport behavior. He smuggles a mutated hemorrhagic virus hidden in an asthma inhaler, releases it on board, and is later confronted and restrained. His actions stem from a past dismissal by a pharmaceutical company, and his sociopathy is later confirmed.
Jo Hyun-su is a young police officer who graduated at the top of his academy class and enters prison for a dangerous undercover mission. He is ordered to approach Han Jae-ho and infiltrate a smuggling operation. Though he eventually reveals that he is a cop, his bond with Han continues because both depend on each other.
A high school student and the son of Choi Sun-ae, who goes missing after the authorities detain him with other students. He is prosecuted for sedition, although the evidence against him consists of confessions extracted through torture. Song Woo-seok becomes his defense lawyer and challenges the unlawful investigation and trial.
A lieutenant grieving the loss of his family and comrades, Han is stationed at an orphanage and initially struggles with the assignment. As he bonds with the children, he helps form their choir and confronts an officer who abuses his authority. When the children are ordered to perform in a war zone, Han refuses to send them and announces that the choir will disband.
Rising marathon star in 1947 post-liberation Seoul, initially compared to Sohn Kee-chung. He is approached by Sohn to compete in the Boston Marathon and embarks on an unforgettable journey to Boston with fellow runners despite lacking basic equipment like shoes.
Yim Si-wan has 30 screen credits in a career dating back to 2005. Their work is anchored in the Kill Boksoon Collection universe with 1 titles. Signature works include Squid Game, Unlocked, Strangers from Hell. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
Related entry on Wikidata (Q82788), public domain (CC0).
