A rival gang leader targeted by Jang Dong-su. He is murdered using the serial killer's bloody knife, a frame-up orchestrated by Dong-su that escalates gang violence and forces the murder investigation to be transferred to a major squad. His death significantly alters the power dynamics and complicates the pursuit of the actual serial killer.
The founder of Jangga Group and father of Jang Geun-won. He offers a university scholarship to Oh Soo-ah after Park Sae-ro-yi's imprisonment.
Part of the bandit faction migrating to Gando, participating in the fight for Korean independence alongside other refugees.
Elderly monk mentor providing spiritual guidance and historical knowledge.
Kang-sik is connected to the child whose heart was transplanted without the father’s consent. His grief and anger become part of the revenge behind the repeated deaths, forcing Jun-young and Min-chul to confront the consequences of the transplant and eventually reconcile with the bereaved father.
Senior Police Officer Hong is involved when the fishing community reports Jung-yeon as a possible kidnapper. Rather than exposing the abuse and hidden truth, he helps manage the conflict and protect the adults’ interests. After the violence, he coldly explains where the tide will carry the body, orders the fishing spot closed, and urges everyone to remain silent.
An elderly, religious accomplice who works alongside Tae-in as a cleanup crew member. His faith and experience help him navigate the moral dilemma of caring for Cho-hee.
Sang-moon is the father of Young-ju’s employer’s family and was responsible for the truck crash that killed Young-ju and Young-in’s parents. Young-ju grows close to his family without initially resolving her feelings about his role in the accident. She eventually faces him, identifies the victims as her parents, and admits that she once resented him and wanted revenge.
Yoo Jae-myung has 74 screen credits in a career dating back to 2009. Their work spans 2 cinematic universes — most prominently Alienoid Series with 2 titles. Signature works include The Gangster, the Cop, the Devil, Strong Girl Bong-soon, Itaewon Class. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
Universe traveler — spans 2 universes
