Kim Woo-bin as Lee Jung-do

Kim Sung-kyun as Kim Sun-min

Lee Hyun-gul as Kang Ki-jung

Park Ji-yeol as Cho Min-jo

Lee Jung-ok as Han Byung-soon

Kim Yo-han as Moisture

Kang Hyung-suk as Writer K

Cha Wang-hyeon as Earthworm

Lee Hae-yeong as Lee Sang-woo

Kim Ji-young as Ha Sun-jung

Kang Seung-ho as Kim Min-wook

Son Sang-yeon as Lee Yang-ho

Park Jong-hee as Kim Gum-nam

Kim Yool-ho as Choi Gyeong-sa

Ji Jin-hee as President

Lee Jung-hyun as Self-defense Shop Clerk

Kwon Il-yong as Profiler

Ahn Chae-heum as Lee Min Ju