A former schoolmate of Park Jung-Kwon, Ki remembers their youthful fighting with both nostalgia and regret. As an adult, he struggles with work and personal frustrations, while Park remains caught in street conflicts. Ki meets Park again near the end, and their conversation hints at unresolved questions about the past and the possibility of moving on from their former lives.
A documentary editor who revisits the story of Park-ku five years after the mysterious man vanished from public view. He remembers first meeting an ambitious aspiring reporter, who later urges him not to abandon the documentary. His work provides the framing perspective for the account of Park-ku’s case.
Kim Sung-ho is a bank manager whose murder becomes central to the investigation involving Jo. Forensic investigators find evidence that he fought with a third person in Jo's studio and detect traces of an anesthetic in his blood. His death causes police to question Jo and examine her claims of being stalked.
A contestant who takes part in the first team challenge but is eliminated after receiving the decisive votes in the forced elimination ballot.
The nephew of the elderly woman whose dog is targeted by Ji-so and Ji-seok. He is pursuing his aunt's inheritance and is willing to stop at nothing to obtain it, making him another person searching for the dog. His self-interested actions create an antagonist who threatens the children's plan and the elderly woman's security.
Lee Chun-hee has 23 screen credits in a career dating back to 2003. Signature works include Barbie, Bar Legend, Ensemble. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.