A high school student with a bubbly personality despite a tragic life. She can see ghosts but tries to ignore them. She accidentally summons the Goblin, intertwining their fates. Later, she begins working a part-time job at a chicken restaurant.
A detective in the alternate reality where the Republic of Korea exists. Lee Gon recognizes her from an identity card connected to his father's assassination.
Mo Eun is arrested after poisoning a married dentist couple and confesses without remorse. Imprisoned with An Yun-su, she offers to confess to the studio murder if An Yun-su kills Ko Se-Hun. Her detailed knowledge disrupts the prosecution, while her revenge plan and assumed identity become central to the investigation.
A renowned Korean shaman who leads the team to investigate a family curse. She performs rituals, persuades her colleagues, investigates the oni's origins through a possessed Bong-gil, and helps devise the plan to neutralize the samurai spirit.
A young high school girl who is found asleep on Lee Jeok-yo’s porch. She accepts a part-time job cleaning his home, and her exuberance, humor, and genuine warmth awaken his long-suppressed feelings and make him feel young again. Her increasing closeness to Lee Jeok-yo becomes the emotional center of the conflict with Seo Ji-woo.
The free-spirited protagonist whose experiences and relationships form the core narrative. She moves to Seoul and shares an apartment with Heung-soo, navigating urban life and personal growth.
A young woman with a developmental disability who runs a street stall with her younger sister. Despite being labeled a 'psycho bitch,' she is brave, optimistic, and fiercely protective. After her sister's murder, she transforms into a determined avenger, ultimately confronting and killing the killer.
Seol-hee is an intelligence operative for the independence army who conceals her identity to infiltrate Itō Hirobumi's circle. While risking her life to gather information in enemy territory, she relays a secret report that Hirobumi will soon visit Harbin for a meeting with Russia. Her intelligence informs Ahn Jung-geun and his comrades as they prepare their mission.
Sun-mi is Hak-soo's old crush and the person whose deceptive trick unexpectedly brings him back to Byeonsan. Her action reconnects him with the hometown and its painful memories, making her an important catalyst for the events that force Hak-soo to confront the past he has tried to escape.
Hye-ji is Gye-choon's granddaughter, returning after being lost for twelve years. Although she begins living with Gye-choon in Jeju, she remains secretive and reveals little about herself, causing suspicion among the villagers before disappearing after traveling to Seoul for an art competition.
Jin Sun-mi is a passionate rookie prosecutor handling the case against Kim Jeong-hwan. She believes Kim was stalking Han Min-jeong and initially challenges Byeong Ho-sung's defense strategy in court. After Kim's unexpected confession and Byeong's search for the truth, Jin joins him in investigating what really happened.
Kim Go-eun has 26 screen credits in a career dating back to 2012. Signature works include Guardian: The Lonely and Great God, The King: Eternal Monarch, The Price of Confession. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
