North Korean consul general in Vladivostok. His mission is complicated by personal interests that clash with official state security objectives, adding political and operational friction to the plot.
Tae-seok is an entrant in the closed-building competition who occupies the sixth floor. Because higher floors receive more money and larger rooms, his position connects him to the privileged side of the emerging hierarchy. He remains part of the shared group whose cooperation is threatened by the unequal structure of the game.
A major general and longtime ally of Chun Doo-gwang within the secretive Hanahoe faction. He actively conspires with Chun to orchestrate the abduction of General Jung Sang-ho and mobilizes Hanahoe loyalists to execute the December 12 coup.
Aspiring director and husband of Ji Seon-u. Engages in an affair with Yeo Da-gyeong, lies frequently, and attempts to sabotage Seon-u's life post-divorce. His dishonesty destabilizes his marriage to Da-gyeong, ultimately leading to his personal catastrophe and breakup.
A rational detective investigating bizarre murders involving desiccated victims with skull holes. Initially skeptical of supernatural elements, he collaborates with Dong-jin and eventually confronts the demon, meeting his end during the final battle.
Kwon Tae-ju is a Taesung Group employee recorded breaking into the police warehouse before the explosion. He repeatedly acts to suppress the evidence, attacking Jo Pil-ho, threatening Mina, and participating in the ambush and torture arranged by the corporation. During Jo's final assault, Kwon is shot and killed.
Criminal aspiring to collaborate with Mr. Lee. Tricked by Won-ho (posing as Ha-rim/Mr. Lee) into a meeting and offers his drugs. Later thrashed by Brian for meeting him in person and takes Rak to a room to kill him before Rak's true identity is revealed.
Dedicated narcotics officer who initially clashes with the informant system. After being framed by Goo Gwan-hee to cover up drug activities, he spends months clearing his name. He forms a revenge pact with Kang-soo and Soo-jin, targets drug dealer Yeom Tae-soo, obtains incriminating evidence, and helps keep Kang-soo focused on their mission.
Ambitious criminal attempting to infiltrate the cartel hierarchy.
One of the five adoptive fathers, specializing as the gang's guns expert. Killed by Hwa-yi during the revenge operations.
Joon-soo is a police officer who had known Han Seo-young since childhood and becomes a suspect in her murder. Investigators connect him to her through a financial relationship and an alleged affair, while his left-handedness is treated as another suspicious detail in the developing case.
Park Hyun-ik is a man connected to Han-mae through prostitution and organ trafficking. He first approaches Ji-sun because Han-mae owes him money, guides her to the massage parlor, and later reveals that Han-mae hired him to kill her abusive husband. His information explains Han-mae's plan and helps Ji-sun locate the fleeing mother and child.
Park Hae-joon has 44 screen credits in a career dating back to 2012. Their work spans 3 cinematic universes — most prominently Believer Collection with 2 titles. Signature works include When Life Gives You Tangerines, Humint, Tempest. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
Universe traveler — spans 3 universes
