Lee Je-hoon as Hong Gil-dong

Kim Sung-kyun as Gang Seong-il

Park Keun-hyong as Kim Byeong-deok

Roh Jeong-eui as Dong-yi

Go Ara as President Hwang

Kim Ha-na as Mal-soon

Chung Sung-hwa as Innkeeper

Kim Dong-hwi as Student

Jang Se-won as Policeman

Lee Jun-hyeok as Real Estate Agency Owner

Yoon Yeong-gyun as Tae-jung

Hwang Bo-ra as Used Book Store Woman

Jung Young-hoon as Gwi-han

Go Woo-rim as Young Hong Gil-dong

Cho Dong-in as Newcomer

Yoon Young-kyun as Choi Tae-jeong