Yu Oh-seong

Character: Joon-seok

Jang Dong-gun

Character: Dong-soo

Seo Tae-hwa

Character: Sang-taek

Jung Woon-taek

Character: Jeong-ho

Kim Bo-kyung

Character: Jin-sook

Ki Joo-bong

Character: Mustache

Joo Hyun

Character: Joon-seok's Father

Jeon Young-woon

Character: Dong-soo's Father

Lee Jae-yong

Character: Scar-Eye

Kim Hyun-ji

Character: Tall Woman

Yoo Seung-il

Character: Child Joon-seok

Jeong Hee-ryong

Character: Child Dong-soo

Kim Joon-beom

Character: Child Sang-taek

Kim Seong-bok

Character: Child Joong-ho

Kang Shin-il

Character: Sang-taek's Father

Kwon Nam-hee

Character: Sang-taek's Mother

Park Nam-hee

Character: Joon-seok's Mother

Lee Eun-joo

Character: Sin-ae

Kim Jung-tae

Character: Doruko

Yoo Byeong-seok

Character: Small Guy

Kim Gi-yong

Character: Jjang-ga

Jung Ho-bin

Character: Eun-gi

Yang Joong-kyung

Character: English Teacher

Kim Kwang-kyu

Character: Math Teacher

Kim Gi-ho

Character: Cowardly Gangster

Hong Seok-yeon

Character: Security Guard

Ahn Chang-gook

Character: Man with Gold-framed Glasses

Jo Yong-won

Character: Beauty

Kim Hoon

Character: Doruko's Henchman

Jo Soo-jin

Character: Member of Rainbow

Lee Se-na

Character: Member of Rainbow

Kim Hyun-sook

Character: Member of 7 Princess

Jang Gi-hoon

Character: Small Guy's Mob

Kim Yeong-heon

Character: Joon-seok's Driver

Seo Byeong-do

Character: Vice President

Kim Jun-hee

Character: Trans

Park Hyo-jin

Character: Theater Advertisement

Park Yong-chan

Character: Buckle Student

Im Ji-moon

Character: Triangle Student

Kim Tae-won

Character: Gangster from the Trunk

Kim Seong-hwa

Character: Arresting Policeman

Bae Won-yeong

Character: MC Student

Lee Dong-wook

Character: Student from the Shaolin Temple

Kim Po

Character: Mustache's Henchman

Ji Dae-han

Character: Scar-Eye's Shadow

Cha Jin-ho

Character: Bunting Student

Kim Ji-hoon

Character: Weekly Duty Student

Kim Moon-bin

Character: Student

Kim Jung-woon

Character: Doruko's Younger Brother

Kim Yun-tae

Character: Dong-soo's Henchman

Chang Yun

Character: Dong-soo's Henchman

Moon Woon-bong

Character: Dong-soo's Henchman

Son Byung-hee

Character: Dong-soo's Henchman

Yang Ji-woong

Character: Waiter

Lee Kyeong-ha

Character: Bar Girl

Hwang Joo-hyeon

Character: Bar Customer

Choi So-i

Character: Female Employee

Yoo Sang-seob

Character: Jaws

Lee Ji-yeon

Character: Female Employee at Wedding Hall

Sun Ho-jin

Character: Young Man with Umbrella

Kim Jae-hyeon

Character: High School Boy

Oh Seung-chan

Character: Court Prosecutor

Jeong Jong-seop

Character: Court Lawyer

Park Chan-young

Character: Judge

Kim Sung-nyeo

Character: Bus Conductor

Jo Joon-baek

Character: Employee at Construction Site