Shin Hye-sun

So Si-min

Acting

Lee Jun-young

Han Su-gang

Acting

Park Jung-woo

Ko Jin-hyoung

Acting

Park Hyuk-kwon

So Young-taek

Acting

Cha Chung-hwa

Lee Jae-gyeong

Acting

Lee Chan-hyeong

Lee Gwon-joong

Acting

Bae Hyeon-jun

Byeong-jin

Acting

Cha Woo-min

Lee Moon-gi

Acting

Kim Sang-woo

Park Jung-ho

Acting

Lee Tae-hee

Kim Jeong-gyu

Acting

Lee Tae-gyun

Byun Jae-hyeok

Acting

Kang Anna

Song Eun-gyo

Acting

Kang Na-ru

Min-ji

Acting

Son Sook

Jin-hyoung's Grandmother

Acting

Lee Gyu-hoe

Head Teacher

Acting

Lee Jung-ok

Seo Sang-woo

Acting

Dong Hyo-hee

English Teacher

Acting

Nam Jeong-woo

Math Teacher

Acting

Kim Gyeong-ryong

Principal

Acting

Lee Do-eun

Hye-gyeong

Acting

Choi Ri-ho

Chauffeur

Acting