Once Upon a Time in High School 2004

Kwon Sang-woo

Hyeon-su

Lee Jung-jin

Woo-shik

Han Ga-in

Eun-ju

Lee Jong-hyuk

Cha Jong-hoon

Park Hyo-joon

Ham Jae-bok

Seo Dong-won

Seong-hun

Kim Dong-young

Young Hyeon-su

Cho Jin-woong

Yasaengma Gang Member

Lee Gyu-ho

Yasaengma Gang Leader

Kim In-kwon

Jiksae

Baek Bong-ki

Cheetah

Ahn Nae-sang

Teacher

Kim Byung-choon

Choi Byeong-sam

Kwon Tae-won

English Teacher

Cheon Ho-jin

Hyeon-su's Father

Lee Hyeon-seok

Hyun-soo's Mother

Jun Sung-ae

Jong-hoon's Mother

Yang Han-seok

P.E. Teacher

Park Soo-young

Politics & Economics Teacher

Kim Bu-seon

Boniface

Lee Jang-woo

Student

Back Joo-hee

Student

Lee Gun-moon

Korean crow-tit's gang

Choi Hyeon-gi

Cinematography

Kim Ki-chul

Production Design

Tcha Sung-jai

Executive Producer

Kim Jun-seok

Original Music Composer

Noh Jong-yun

Producer

Yoo Ha

Screenplay

Yoo Ha

Director

Park Gok-ji

Editor

Kim Seo-young

Makeup & Hair

Lee In-gyu

Sound Designer

Sin Jae-myeong

Fight Choreographer

Kim Kyung-tae

Production Sound Mixer

Pil Gam-seong

Assistant Editor

Kim Byeong-gi

Special Effects Supervisor