Door Lock— Full Cast

Gong Hyo-jin

as Jo Kyeong-min

Kim Ye-won

as Oh Hyo-joo

Kim Seung-o

as Detective Lee

Jo Bok-rae

as Kim Gi-jeong

Lee Ga-sub

as Han Dong-hoon

Lee Chun-hee

as Kim Sung-ho

Han Ji-eun

as Kang Seung-hye

Kim Jae-hwa

as Assistant Manager Park

Kim Kwang-kyu

as Deputy Head of Department

Cha Yeob

as Detective

Lee Jong-gu

as Real Estate Agent

Lee Hong-nae

as Police Officer

Yeum Moon-kyoung

as Employee

Lee Sang-hee

as Manager

Park Sook Myung

as Aunt