Missing

Uhm Ji-won

Ji-sun

Kong 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-yi

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

Yoo Ann

Childminder

Baek Hyeon-woo

Detective 1