Extracurricular

Kim Dong-hee

as

Oh Ji-soo

Park Ju-hyun

as

Bae Gyu-ri

Jung Da-bin

as

Seo Min-hee

Nam Yoon-su

as

Kwak Ki-tae

Kim Yeo-jin

as

Lee Hae-gyoung

Choi Min-soo

as

Lee Wang-cheol

Park Hyeok-kwon

as

Cho Jin-woo

Seo Ye-hwa

as

Na Seong-mi

Kim Kwang-kyu

as

Byung-kwan

Back Joo-hee

as

Cho Mi-jun

Im Gi-hong

as

Ryu Dae-yeol

Lee Hyun-gul

as

Kkakdugi

Park Ho-san

as

Oh Jung-jin

Sim Yi-young

as

Gyu-ri's Mother

Kim Young-pil

as

Gyu-ri's Father

Woo Da-vi

as

Soo-ji

Lee Jae-Baek

as

Kang Bbang

Lee Seung-wook

as

Chae-bin

Kim Yi-kyeong

as

Kim Ji-ye

Park Bo-Mi

as

Cho Min-joo

Kwon Han-sol

as

Hye-min

Kang Seol

as

Lee Na-eun

Shin Myung-sung

as

Lim Tae-woo