Uhm Ji-won as Ji-sun

Gong Hyo-jin as Han-mae

Kim Hee-won as Detective Park

Park Hae-jun as Park Hyun-ik

Lee Sung-wook as Detective Suh

Jeon Seok-chan as Detective Nam

Go Joon as Jin-hyuk

Kim Sun-young as Massage Parlor Owner

Jang Won-young as Suk-ho

Kil Hae-yeon as Mother-in-law

Kim Jin-goo as Suk-ho's Mother

Yeum Moon-kyoung as Stewardess

Lee Yong-i as Caregiver Grandmother

Kim Ji-hoon as Kim

Shin Dam-su as Policeman

Kim Ki-ho as Doctor

Ju Min-ha as Woman from 10th floor