Se-jeong's ex-husband preparing to emigrate. Trapped in the mall, he dies while protecting a student from the infected.
Kim Yo-han is the pawnbroker's son and has matured into a murderer who removes people standing in Yoo Mi-ho's way. He functions as her shadow, demanding nothing in return while remaining secretly close to her. He killed his father after discovering abuse of Lee Ji-ah, and ultimately kills himself to protect her, making him central to the hidden truth.
A reckless rescue firefighter haunted by guilt over his late wife's death, who initially rejects Mi-soo's advances but eventually learns to embrace love and let go of his past trauma.
Choi Dae-ho is a young investigative journalist and single father whose reporting has exposed corrupt politicians and businessmen. After his son is abducted without a ransom, he uses lucid-dream therapy to revisit the day, follows new evidence, and seeks the truth with So-hyun and Detective Song.
Im Jong-bae is Song Jung-yeon's husband and the father of their young daughter. After acting as a guarantor for a friend's unpaid loans, he and his family face severe financial turmoil. As Song Jung-yeon is jailed abroad, he becomes increasingly despondent but works to contact diplomats and secure her return home.
A naturally gifted designer with exceptional dexterity and artistic vision. He was recruited to the palace by Pan-soo after his potential was recognized.
A resilient scrapyard worker and pawn shop employee with a unique ability to resist psychic mind control and survive fatal injuries. He becomes a vigilante hunting Cho-in after his boss's death.
Kang Seong-ju is a detective who approaches Seo Yu-jin for her phone and cooperation after she may have witnessed someone linked to the drug case. His familiar face, voice, and number trouble her, while evidence later suggests police involvement. He disappears in Min Jae-il's car and becomes the police's suspected criminal, although Seo still doubts his guilt.
Go Soo has 20 screen credits in a career dating back to 2000. Signature works include Colony, Lucid Dream, Love 911. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
