as Han Jae-in
48 episodes
as Kang Yoon
36 episodes
as Seo Ji-min
16 episodes
as Choi Seung-hyeok
12 episodes
as Park Ha-neul
28 episodes
as Jung Pu-reum
28 episodes
as Lee Hyeon-seung
48 episodes
as Jung Ji Won
48 episodes
as Kwak Joon-mo
48 episodes
as Kim Do-yeong
40 episodes
as Kim Min-woo
48 episodes
as Kim Joo-chan
16 episodes
as Professor
16 episodes