Ji Seong

Ha Woo-shin / Song Soo-hyun

지성

Seo Ji-hye

Eun Hye-soo

서지혜

Lee Soo-kyung

Kim Seo-hee

이수경

Heo Sung-tae

Choi Tae-sung

허성태

오대환

Team A Leader Lee

Lee Kyung-young

Chairman Kwon

이경영

황정민

Butler Kwon

최덕문

Kang Hyuk-pil

Seo Hyeon-woo

Kwon Hyun-jo

서현우

Park Hae-eun

Yoon Sun

박혜은

조성하

Lee Chang-woo

이시원

Secretary Yoon

신현승

Lee Dong-rim

Woo Hyeonju

Ms Oh

우현주

고윤

Agent Park

최찬호

Agent Kim

Lee Ho-chul

Manager Jeong

이호철

조동인

Manager Lee

장진희

Special Agent Miss Lee

원태민

Special Agent Mr. Han

이도엽

Special Agent Mr. Baek

하민

Lee Dong-rim Mother

Ahn Bo-hyun

Kwon Min-jo

안보현

Ko Kyu-phil

Gong Dae-chul

고규필

김종구

Hwang Byung-chul

Yoon Yoo Sun

Ha Young-shin [Woo-shin's mother]

윤유선

Kim Jeong-ho

Kim Won-joong

민응식

Prosecutor office deputy head

Kang Hak-soo

Chief Yang

강학수

Im Byeong-gi

Director Eun

진태연

Jang Young-ja

조한준

[Undercover agent]

Jung Young-hoon

Team A agent

Heo Tae-hee

Prosecutor Han Min-soo

Jang Ui-don

Jang Eui-don

장의돈

한사명

Team A agent Cha

전광진

[Bomb squad captain]

Hwang Jin-hwan

Haesongwon security guard

송형수

Jeweler

Park Ji-ho

Hwang Byung-chul's aide

박지호

Choi Moo-in

Im Deok-su [killer]

최무인

조현우

Song Soon-ho

양흥주

Warden Jeon Byung-gyu

Kim Bi-bi

ARES Team Leader Lee Mi-young

김비비

박기륭

ARES CEO Kim Gun-ho

최다영

Ms. Cho

장태민

Detective

Kim Do-yoon

Sergeant Ko Chul-min

김도윤

박승찬

Director Jung Hyo-gun

옥채훈

Kwon Hyun-jo [young]