* Name: Nam Joo-hyuk * Age: 32 (Born February 22, 1994) * Gender: Male * Occupation: Actor, Model * Height: 187cm * Debut: 2013 as a model, 2014 in the drama "The Idle Mermaid" * Representative Works: "Who Are You: School 2015", "Weightlifting Fairy Kim Bok-joo", "The Light in Your Eyes", "Start-Up", "Twenty-Five Twenty-One", "Vigilante", etc. * Role in Donggung: Gu-cheon. An exorcist with the ability to cross into the spirit world and slay ghosts. Together with Saeng-gang, he uncovers the secrets of the curse hidden within the Eastern Palace, resolving incidents with his exceptional swordsmanship and cold judgment. * Appearance: Stands out with a tall height of 187cm, a solid build, and sharp features. In the drama, he exudes a mysterious and strong aura with long hair and black martial arts attire. * Actual Personality: Known for being bright, affectionate, and polite. He laughs a lot, gets along well with others, and has an active side, enjoying sports. In interviews, he is evaluated as a sincere and steadily hardworking actor, leaving a good impression on fans and colleagues with his kind demeanor.

* Age: 46 (Born March 28, 1980) * Gender: Male * Occupation: Actor, Musical Actor * Height: 173cm * Debut: 2000 in the film "Chunhyang" * Representative Works: "Marathon", "Tazza: The High Rollers", "Stranger", "Divorce Attorney Shin", Musicals "Jekyll & Hyde", etc. * Role in Donggung: The King of Joseon. A monarch who summons Gu-cheon and Saeng-gang to resolve the curse cast upon the Eastern Palace and the secrets of the royal family. He is a central figure who tracks the truth of the incident with a greater sense of responsibility than anyone else to protect the country and its people. * Appearance: Characterized by neat black hair, deep-set eyes, and a calm yet intense charisma. He exudes dignity and class when wearing royal robes and the Gonryongpo. * Actual Personality: Known for being quiet and humble, with a very strong sense of responsibility toward his work and acting. Although he is a bit shy, he shows a humorous and warm side once he becomes close to someone. He is evaluated as an actor who carefully looks after his colleagues and staff, and he has a playful streak.