Uhm Ji-won
Ji-sun

Gong Hyo-jin
Han-mae

Kim Hie-won
Detective Park

Park Hae-joon
Park Hyun-ik

Lee Sung-wook
Detective Suh

Jeon Seok-chan
Detective Nam

Go Joon
Jin-hyuk

Kim Sun-young
Massage Parlor Owner

Jang Won-young
Suk-ho

Kil Hae-yeon
Mother-in-law

Kim Jin-goo
Suk-ho's Mother

Yeum Moon-kyoung
Stewardess

Lee Yong-i
Caregiver Grandmother

Kim Ji-hoon
Kim

Shin Dam-su
Policeman

Kim Ki-ho
Doctor

Ju Min-ha
Woman from 10th floor

Kim Young-mi
Nurse