Failing business owner who sells the restaurant to the detectives.
Bureaucrat involved in alien transport logistics or covering up the incident.
Customs officer who leads the 1974 crackdown and later colludes with Hammer to steal smuggled goods. He attempts to force the divers to retrieve diamonds and is drowned by them after his deception is foiled.
Minister Choi is the government minister who evaluates Lee Min-jun after Lee insists that the hostage handover falls under his responsibility. Impressed by Lee's negotiation skills, he supports the assignment and promises that Lee may eventually serve in the United States after completing his Middle Eastern duties.
The Real Estate Agent handles the attempted sale of Doo-sik's DVD room and provides him with difficult information about the market. The agent explains that many stores remain unsold for months, then reports that the building deposit has risen to $70,000 and the buyer demands a $40,000 premium, worsening Doo-sik's uncertainty.
Team Leader Choi becomes involved after the local adults portray Jung-yeon as a possible kidnapper. Alongside Senior Police Officer Hong, he helps contain the escalating dispute instead of uncovering the abuse and confinement at the fishing spot. His role connects the authorities with the community’s effort to control the situation and suppress the truth.
A minor character whose role and connections are not specified in the provided plot summary.
A minor character working at the local cinema. Plays no significant role in the hotel investigation or the hunt for the phantom spy.
Sun-ho's father, whose gambling debts force the protagonist into taking the difficult murder case. His financial troubles serve as the initial motivation for Sun-ho's actions.
Patriarch dealing with eerie household dynamics and supernatural occurrences.
Coach Park is Soo-in’s baseball coach and the main adult who develops her athletic potential. He challenges her weak speed and physical power, then recognizes her exceptional spin rate and proposes a knuckleball-based approach. He trains her, supports her ambition, and helps secure a professional tryout.
Kim Jong-soo has 71 screen credits in a career dating back to 1984. Their work spans 5 cinematic universes — most prominently Okay! Madam Collection with 2 titles. Signature works include The Manipulated, Low Life, Dr. Cheon and the Lost Talisman. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
Universe traveler — spans 5 universes
