Jo Seok

Kwang-soo Lee

Choi Sang-bong

Jung So-min

Cho Jun

Kim Dae-myung

Cho Cheol-wang

Kim Byeong-ok

Jo Seok

Lee Kwang-soo

Kwon Jeong-kwon

Kim Mi-kyung

Kim Dae-myeung

Webtoon writer / Jo Suk's friend

Song Joong-ki

Kwon Jung-Gwon

Kim Mi-kyeong

Webtoon editor

Kim Kang-hyun

Deputy Department Head Seo

Seo Hyun-chul

Taxi driver

Choi Dae-sung

Department Head Uhm

Yum Dong-hun

Soldier / Male college student

Kim Min-kyu

Kim Sun-Kwon

Ok Joo-ri

Interviewer

Seo Woo-jin

Jo Suk's old friend

Yoon Jin-yi

Interpreter / Voice phishing woman

Lee Su-ji

Ae Bong's friend

Park Kyung-hye

Jo Suk's friend

Kim Min-ho

Woman next door in Room 205

Kim Se-jeong

Director

Jang Hyo-jin

Lee Ji-Soon

Lee Jae-eun