Chae Jong-hyeop

as Lee Hyo [Grand Prince Okryun] (1 episode)

as Nishigami (18 episodes)

as Sunwoo Chan (12 episodes)

as Self (1 episode)

as Self (14 episodes)

as Kang Hu-young (8 episodes)

as Yoon Tae-oh (10 episodes)

as Kang Bo-geol (12 episodes)

as Bok-dong (7 episodes)

as Park In-seong (12 episodes)

as Ham Yu-jin (1 episode)

as Park Tae-joon (16 episodes)

as Lee Gil-yong (8 episodes)

as Yang Do-hyeok (10 episodes)

as Choi Jae-sun (16 episodes)

as Self (1 episode)

as Yoo Min-ho (16 episodes)

as Park Seon Jae (8 episodes)

as Self (2 episodes)

as King Sejong (12 episodes)