Seo Suk-kyu

as Detective 1

as Apt. 304 Resident

as Jin-suk's son

as Doctor

as Man Upstairs

as Reenactor

as Lee Dong-woo

as Jin-woo

as Woo-seok

as Moon Do-seok's Fellow Detective

as Helmsman

as Newlywed / Airplane passenger

as In-hyeok

as YTN Reporter

as Truck Driver in Accident

as Vote Telecast Bystander 2

as Control Team

as [Consignment specialist]

as PD

as Actor (eps 5)

as NIS Shooting instructor

as Wedding guest

as Seung-won's Father