Kim Woo-bin

as Chi-ho

Lee Jun-ho

as Dong-woo

Kang Ha-neul

as Kyung-jae

Jung So-min

as So-min

Lee Yu-bi

as So-hee

Min Hyo-rin

as Jin-joo

Ahn Jae-hong

as In-gook

Heo Joon-seok

as Bum-soo

Jeon Yeo-jin

as Bum-soo's Wife

Park Myung-shin

as Chi-ho's Mother

Oh Hyun-kyung

as Dong-woo's Mother

Yoon Ga-hyun

as Grilled Clam Restaurant Owner

Kim Eui-sung

as Chi-ho's Father

Na In-woo

as Dong-won

Han Jun-woo

as Club DJ

Kim Chan-hyung

as Head of Loan Shark

Baek Soo-hee

as Min-jung

Park Hyuk-kwon

as Movie Director

Song Ye-dam

as Twin Brother

Song Ye-joon

as Twin Brother

Kim Jong-soo

as Dong-woo's Uncle

So Hee-jung

as Kyung-jae's Mother

Hong Wan-pyo

as Assistant Director

Yang Hyun-min

as So-jung

Kim Jae-man

as Chicken Restaurant Owner

Hwang Mi-young

as Woman bumps into Kyung-jae on Campus

Oh Ha-ni

as Makeup Team

Kang Chung-hun

as Dong-woo's Colleague

Jung Seo-in

as Hair Salon Staff