"At work, she's a renowned assassin. At home, she's a single mom to a teenage daughter. Killing? That's easy. It's parenting that's the hard part."
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 Seung-o
as Shin
Lee Yeon
as Kim Young-ji
Hwang Jung-min
as Kim Gwang-il / Shinichiro Oda
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 Father
Lee Jae-wook
as Young Cha Min-kyu
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-soon
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 Mother
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 Information Desk Staff
Kim Dae-han
as M.K. Writer
Choi Yoon-bin
as Corpse Cleaner 2
Park Geun-jeong
as Killer
Byun Sung-hyun
Director
Kim Byeong-yeol
Set Decoration
Cho Hyoung-rae
Director of Photography
Lee Gil-gyu
Lighting Director
Han Ah-rum
Production Design
Writer
Lee Jin-hee
Music
Kwon Su-kyung
Makeup & Hair
Kim Hong-jip
Kim Byung-in
Sound Designer
Kim Sang-bum
Editor
Kim Jung-won
Costume Design
Mo Il-young
Producer
Jang Jae-wook
Martial Arts Choreographer
Hong Jang-pyo
Special Effects Supervisor
Kim Jung-soo
VFX Supervisor
No Hyeong-gi
Park Jin-young
Digital Intermediate
Yi Jin-hee
Executive Producer
Park Jong-geun
Production Sound Mixer
Hwang Hyo-kyun
Special Effects Makeup Artist
Jeong Jong-bae
Kim Yun-suk
Props
Song Suk-ki
Kwak Tae-yong
Lee Tai-sung
Assistant Director
Hwang Chang-gi
Grip
Yoon Hye-in
Lee Jung-bok