Jung Jin-young

as Kim Dong-hyun

Park Sung-woong

as Jang Pan-soo

Ra Mi-ran

as Oh Mi-sun

Lee Soo-min

as Oh Hyun-jung

Lee Pung-un

as Min-woo

Kim Kwang-kyu

as Kim Jong-ki

Lee Jun-hyeok

as Man-chul

Yoon Song-ah

as Dam-im

Park Kyung-hye

as Jae-hee

Jung Yun-ha

as Japanese Teacher

Kim Hyeon-mok

as Kim Jae-ik

Jang Jin-hee

as History Teacher

Oh Yoon-soo

as Hotel Staff

Ji Chan

as Detective

Kwon Hyeok-beom

as Cheol-ho

Nam Jin-bok

as Loan Shark

Kim Hong-pa

as CEO Han

Mi So-yun

as Coffee Employee

Park Ji-hoon

as Min-woo's Friend

Jung Won-chang

as Min-woo's Friend

Cha Young-ju

as Min-woo's Friend

Bae Kyung Min

as Min-woo's Friend

Heo Yoo-ri

as Min-woo's Friend

Choo Suk-young

as Min-woo's Friend

Heo Na-kyung

as Min-woo's Friend

Cho Hyun-young

as Yoon-ji

Kwon Hyeok-beom

as Chul-ho

Son Kwang-Eop

as Section Chief Jo

Kim Tae-jun

as Loan Shark Big Man

Kim Jae-man

as Detective

Kim Geon

as Hospital Ward Guard 1

Lee Woo-sung

as Hospital Ward Guard 2

Lim Seung-Jun

as Mansion Security Guard

Jo Young-ji

as Reporter

Lee Kwang-ho

as Section Chief Kwak

Yun Bu-jin

as Landlord

Oh Ji-young

as Housekeeper

Seo Seung-won

as Woodworking Employee

Park Jin-su

as Police

Park Shin-ah

as Loan Shark Accountant

Kim Bu-seon

as Grandmother

Jung Yoon-seo

as Attending Physician

Lee Ja-eun

as Pianist

Han So-hyun

as Party Girl

Im Dae Il

as Cart Bar Man

Jo Kyung-hyun

as Bar Owner

Nam Tae-woo

as Pan-soo's Gang Member 1

Kim Sang Gyeom

as Pan-soo's Gang Member 2

Kim Joon-hyung

as Pan-soo's Gang Member 3

Jung Hyun Cheol

as Pan-soo's Gang Member 4

Kwak Ji-yoo

as Nurse

Jin Soo Sun

as Gun Carrying Man

Shin Jae Min

as Security Personnel

Kim Bum-jin

as Min Woo-chin

Kim Dae-han

as Moneylender's Big Guy

Hwang In-jun

as Wrecking Crew

Lee Jung Do

as Shared Meal Restaurant Couple Man

Jung Ji Yeon

as Imaginary Mi-seon

Lee Keon-gu

as CEO Yang's Subordinate

Lee Woo-je

as Fat Man

Park Ju-hyun

as Female Student

Lee Dong-Young

as Wrecking Crew

Cho Sung-hee

as Literature Teacher

Park Jin-ah

as Bully 1

Kim Young

as Bully 2

Lim Ji-hyung

as Kim Dong-hyun's Classmate

Min Ji-a

as Han Seo-yeon

Park Jun-seong

as Math Teacher

Hyun Young

Yoon Dan-bi