Brave Citizen

Shin Hye-sun

as

So Si-min

Lee Jun-young

as

Han Su-gang

Park Jung-woo

as

Ko Jin-hyoung

Park Hyeok-kwon

as

So Young-taek

Cha Chung-hwa

as

Lee Jae-gyeong

Lee Chan-hyeong

as

Lee Gwon-joong

Bae Hyeon-jun

as

Byeong-jin

Cha Woo-min

as

Lee Moon-gi

Kim Sang-woo

as

Park Jung-ho

Lee Tae-hee

as

Kim Jeong-gyu

Lee Tae-gyun

as

Byun Jae-hyeok

Kang Anna

as

Song Eun-gyo

Kang Na-ru

as

Min-ji

Son Sook

as

Jin-hyoung's G...

Lee Gyu-hoe

as

Head Teacher

Lee Jung-ok

as

Seo Sang-woo

Dong Hyo-hee

as

English Teacher

Nam Jeong-woo

as

Math Teacher

Kim Gyeong-ryo...

as

Principal

Lee Do-eun

as

Hye-gyeong