Kill Boksoon
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
Gil Bok-soon
Sul Kyung-gu
Cha Min-kyu
Kim Si-a
Gil Jae-young
Esom
Cha Min-hee
Koo Kyo-hwan
Han Hee-sung
Kim Seung-o
Shin
Lee Yeon
Kim Young-ji
Hwang Jung-min
Kim Gwang-il / Shinichiro Oda
Choi Byung-mo
Hyun-chul
Kim Ki-cheon
Su-guen
Park Kwang-jae
Gwang-man
Jang In-sub
Yoon-sub
Jang Hyun-sung
Bok-soon's Father
Lee Jae-wook
Young Cha Min-kyu
Lee Hae-yeong
Oh Jung-sik
Gi Ju-bong
Ki
Kim Joon-bae
Bae
Lee Young-suk
Suk
Kim Yong-jun
Yong
Park Se-hyun
Young Gil Bok-soon
Im Jae-in
Lee So-ra
Choi Hyung-joo
Yoo Cheol-woo
Lee Seung-yeon
So-ra's Mother
Kim Jae-hwa
Cheol-woo's Mother
Yoon Kyung-ho
Principal
Jo Hyun-wu
Detective
Kim Hyun-jae
Kyung-pyo
Yoon Se-woong
Announcer
Lee Ru-ahn
Teacher
Ahn Seong-bong
M.K Information Desk Staff
Kim Dae-han
M.K. Writer
Choi Yoon-bin
Corpse Cleaner 2
Park Geun-jeong
Killer