Shin Ha-kyun

as Se-ha

Lee Kwang-soo

as Dong-gu

Esom

as Mi-hyun

Park Cheol-min

as Song Ju-sa

Kwon Hae-hyo

as Park Sin-bu

Kil Hae-yeon

as Jeong-sun

Kim Kyung-nam

as Teacher Yook

Ahn Ji-ho

as Young Se-ha

Kim Hyun-bin

as Young Dong-gu

Kim Han-na

as Lake Woman

Kim Min-seok

as Wild Boar

Woo Ji-hyun

as Ahn Nyung-yi

Yang So-min

as Attorney Han

Kim Seo-won

as Unemployed Man

Kim Hee-chang

as Convenience Store Owner

AndUp

as Rapper

Kim Ki-cheon

as Taxi Driver

Sun Jong-nam

as Interviewer (uncredited)