Park Se-hyun

as Im A-sol (10 episodes)

as Cho Yu-jeong (3 episodes)

as Kim Eun (10 episodes)

as Yeon-seon (12 episodes)

as Li Xiao

as Young Gil Bok-soon

as Han Ok-seon

as Jang Heejoo (16 episodes)

as Yoon Mi-so

as Kang Da Hyun (7 episodes)

as [High school girl] (1 episode)

as High School Girl

as High School Girl

as Jae-yeon

as Lee Jin-ah (12 episodes)

as Student, as High school girl

as Lee Bo-Ram (2 episodes)

as Choi Soo-bin (16 episodes)

as Seo Eun Bin (16 episodes)

as Young Kim Ji-young

as Se-mi

as Jung Yu-ri (4 episodes)

as Oh Ji-hye (8 episodes)

as Ye-joo