Han Suk-kyu

as Teacher Kim

(+1 more)

52 episodes

Lee Sung-kyung

as Cha Eun-jae

32 episodes

Ahn Hyo-seop

as Seo U-jin

32 episodes

Jin Kyung

as Oh Myeong-sim

32 episodes

Im Won-hee

as Jang Gi-tae

32 episodes

Byun Woo-min

as Nam Do-il

32 episodes

Kim Min-jae

as Park Eun-tak

32 episodes

Yoon Na-moo

as Jeong In-su

32 episodes

Kim Ju-hun

as Park Min-guk

32 episodes

Shin Dong-wook

as Bae Mun-jeong

32 episodes