Choi Jeong-in

as Kim O-rye (11 episodes)

as Yeon-min's mother

as [Gyu-jin's Mother] (2 episodes)

as Mart Manager (Eps 7) (1 episode)

as Court Lady Oh (16 episodes)

as Yang Sa-rang (12 episodes)

as Mu-ok's mother

as Psychiatrist (1 episode)

as Lee Na-ri (1 episode)

as Jung Hye-young (10 episodes)

as Hyoun

as Hong Mi-sook

as Ham Jin (12 episodes)

as Joy Card executive (1 episode)

as Director Choi's wife (1 episode)

as Su-jin

as Hyo-jin

as Seok-yeong's Wife

as Eun-yeong's mother

as Yu-jin

as Hye-won

as Hong Geum-sun

as Hyun-jung's Coworker

as Assistant Teacher 1

as Room 108