7호실

신하균

Doo-sik

도경수

Tae-jung

김동영

Han-wook

Kim Jong-soo

Real Estate Agent

김종구

Vice-principal

Park Soo-young

Superintendent

Jun Seok-ho

Detective Woo

황정민

Doo-sik's Sister

정희태

Pawnshop Staff

Lee Seo-hwan

Drunk Man

Kim Do-yoon

Tattoo Man

Lee Jae-hyeok

Detective