친구

Yu Oh-seong

Joon-seok

장동건

Dong-soo

서태화

Sang-taek

정운택

Jeong-ho

김보경

Jin-sook

기주봉

Mustache

주현

Joon-seok's Father

전영운

Dong-soo's Father

이재용

Scar-Eye

Kim Hyun-ji

Tall Woman

Yoo Seung-il

Child Joon-seok

Jeong Hee-ryong

Child Dong-soo

Kim Joon-beom

Child Sang-taek

Kim Seong-bok

Child Joong-ho

강신일

Sang-taek's Father

Kwon Nam-hee

Sang-taek's Mother

Park Nam-hee

Joon-seok's Mother

Lee Eun-joo

Sin-ae

김정태

Doruko

Yoo Byeong-seok

Small Guy