Kill Boksoon

Jeon Do-yeon

as

Gil Bok-soon

Sul Kyung-gu

as

Cha Min-kyu

Kim Si-a

as

Gil Jae-young

Esom

as

Cha Min-hee

Koo Kyo-hwan

as

Han Hee-sung

Kim Sung-oh

as

Shin

Lee Yeon

as

Kim Young-ji

Hwang Jung-min

as

Kim Gwang-il /...

Choi Byung-mo

as

Hyun-chul

Kim Ki-cheon

as

Su-guen

Park Kwang-jae

as

Gwang-man

Jang In-sub

as

Yoon-sub

Jang Hyun-sung

as

Bok-soon's Fat...

Lee Jae-wook

as

Young Cha Min-...

Lee Hae-yeong

as

Oh Jung-sik

Gi Ju-bong

as

Ki

Kim Joon-bae

as

Bae

Lee Young-suk

as

Suk

Kim Yong-jun

as

Yong

Park Se-hyun

as

Young Gil Bok-...

Im Jae-in

as

Lee So-ra

Choi Hyung-joo

as

Yoo Cheol-woo

Lee Seung-yeon

as

So-ra's Mother

Kim Jae-hwa

as

Cheol-woo's Mo...

Yoon Kyung-ho

as

Principal

Jo Hyun-wu

as

Detective

Kim Hyun-jae

as

Kyung-pyo

Yoon Se-woong

as

Announcer

Lee Ru-ahn

as

Teacher

Ahn Seong-bong

as

M.K Informatio...

Kim Dae-han

as

M.K. Writer

Choi Yoon-bin

as

Corpse Cleaner...

Park Geun-jeong

as

Killer