Kim Jung-hwa as Park Hyo-jin / Lim Gye-soon

Gong Yoo as Choi Ko-bong

Nam Sang-mi as Nam Jin-a

Jadu as Park Hyo-jin

Baek Il-seob as Park Mu-sun

Kim Ae-kyung as Oh Mi-j

Jo Dal-hwan as Song Hyo-kuk

Ahn Hae-Suk as Ko-bong's Mother

Kim Myeong-kuk as Ko-bong's Father

Yoo In-young as Woo Wol-ran

Park Kyeong-Hwan as

Park Kyeong-Hwan as Man in Back Suit

Kim Ki-hwan as Male Student

Lee Kwang-gi as Kim Young-Kwang

Baek Seoung-hee as Young Woman

Park Jin-Taek as Manager

Lee Yong-jik as Thug 1

Yoo Soon-chul as Elderly Spy

Kang In-ki as Korean Teacher