Lee Kwang-soo

Jo-Suk

이광수

김대명

Jo-Joon

Jung So-min

Choi Ae-Bong

Kim Byeong-ok

Jo Chul-Wang

김병옥

Kim Mi-kyeong

Kwon Jung-Gwon

김미경

Song Joong-ki

Webtoon writer / Jo Suk's friend

송중기

김세정

Woman next door in Room 205

김강현

Webtoon editor

Seo Hyun-chul

Deputy Department Head Seo

서현철

염동헌

Department Head Uhm

Jang Hyo-jin

Director

이재은

Lee Ji-Soon

Ban Hye-ra

Middle-aged wife

최대성

Taxi driver

주부진

Grandma Kim Jeom-Rye / Deok Hwan's mother

서진원

policeman

김민규

Soldier

옥주리

Kim Sun-Kwon

서우진

Interviewer

강균성

Jang Nam-Chul | Kyun Sung

정이랑

Kim Yoon-ji

김숙

Kim Sook

박나래

Jo Suk's old friend

Seo Jung-joon

Jo Suk's classmate

윤진이

Jo Suk's old friend

금광산

Jo Chul Wang's subordinate

Kim Roi-ha

Mex / Kim Nam-Chul

김뢰하

Lee Su-ji

Interpreter

김민경

Club woman picked by Jo Joon

이세영

Jo Joon's lover

박경혜

Ae Bong's friend

Kim Min-Ho

Jo Suk's friend

김민호

Son Young-soon

Grandma selling gum

손영순

정준영

man next door in room 205

김태원

Self

신동엽

Self

전현무

Self

박슬기

Self

Jung So-yeon

Self

배진예

Self

Ahn Sol-bin

Self

안솔빈

율희

Self

Woo Hyeon

Ae Bong's father

우현

이용녀

Landlord granma / Ae Bong's neighbor

유장영

television producer

차오루

Chinese actress

김종국

Jo Jong-Wook | Jo Jong-Kook

Gong Seung-yeon

Ye Rim

공승연