Yoo Jeong-ho

as Lieutenant colonel Woo

as Mr. Kim

as Quayside client

as Kim Min-sung

as General Manager Oh

as Head Manager

as Lawmaker Yang

as Gun Store Employee

as Player

as Detective Lee

as Seung-hoon

as Hyeon-cheol

as Logistics center employees

as Hoon-do

as Seo Gi-tae

as Detective Yoo

as HR manager

as Korean Mine Worker

as Jeon Tae-su's client (Eps 1)

as Kim Min-chul

as Yeom Kyung-Seok

as Ju Dae-won

as NIS Section Chief Kim