Pemeran Undercover

Ji Jin Hee (지진희)

as Han Jeong Hyeon [Present]

Pemeran Utama

Kim Hyun Joo

as Choi Yeon Su [Present]

Pemeran Utama

Huh Joon Ho

as Im Hyeong Rak

Pemeran Utama

Jung Man Sik

as Do Yeong Geol

Pemeran Utama

Yoo Seon Ho

as Han Seung Gu [Jeong Hyeon & Yeon Su's son]

Pemeran Pembantu

Lee Jae In

as Han Seung Mi [Jeong Hyeon & Yeon Su's daughter]

Pemeran Pembantu

Lee Han Wi

as Bae Gu Taek

Pemeran Pembantu

Han Go Eun

as Ko Yun Ju

Pemeran Pembantu

Kwon Hae Hyo

as O Pil Jae

Pemeran Pembantu

Kang Young Seok

as Jung Cheol Hun [Detective]

Pemeran Pembantu

Bae Yoon Kyung

as Song Mi Seon

Pemeran Pembantu

Choi Dae Chul

as Chu Dong U

Pemeran Pembantu

Lee Seung Jun

as Kang Chung Mo

Pemeran Pembantu

Son Jong Hak

as Yoo Sang Dong

Pemeran Pembantu

Kim Soo Jin

as Min Sang A

Pemeran Pembantu

Choi Kwang Il

as Hwang Jeong Ho

Pemeran Pembantu

Joo Seok Tae

as Park Won Jong

Pemeran Pembantu

Park Jin U

as Detective Koo

Pemeran Pembantu

Song Young Gyu

as Kwak Mun Heum [Chief prosecutor]

Pemeran Pembantu

Kim Dong Ho

as Woo Jin [Hyeong Rak's subordinate]

Pemeran Pembantu

Cha Soon Bae

as Song Moon Bae

Pemeran Pembantu

Park Doo Shik

as Do Yeong Geol [Young]

Pemeran Pembantu

Seo Joon

as Hyeon Pil

Pemeran Pembantu

Ahn Se Ho

as Kim Gwang Cheol

Pemeran Pembantu

Im Ji Gyu

as Hwang Jeong Ho [Young] (Ep. 1)

Bintang Tamu

Jang Eui Don

as [Police university instructor] (Ep. 1)

Bintang Tamu

Kim Kye Hyung

as [Car passenger] (Ep. 1)

Bintang Tamu

Choi Hong Lag

as (Ep. 1)

Bintang Tamu

Nam Sung Jin

as Cha Min Ho (Ep. 1-2)

Bintang Tamu

Hong Jin Ki

as Kang Chung Mo [Young] (Ep. 1-2, 8)

Bintang Tamu

Moon Joo Won

as Han Seung Gu [Young] (Ep. 2)

Bintang Tamu

Richard Kim

as Park Ju Won [NIS hearing attendee] (Ep. 2)

Bintang Tamu

Kim Byung Soon

as Yang Ho Won [Assemblyman] (Ep. 2)

Bintang Tamu

Yoo Byung Sun

as [Scrapyard crane operator] (Ep. 2)

Bintang Tamu

Kim Young Dae (김영대)

as Kim Tae Yeol (Ep. 2-3, 8)

Bintang Tamu

Kong Joon Min

as Attorney Park (Ep. 2, 15)

Bintang Tamu

Kim Young Woong

as [Subway control room staff] (Ep. 3)

Bintang Tamu

Kim Gyeong Min

as Mr. Park (Ep. 3-4)

Bintang Tamu

Shim Hyung Tak

as Lee Min Yul (Ep. 3-4)

Bintang Tamu

Kim Hye Jin

as Jeong Hui [Min Ho's wife] (Ep. 3-4)

Bintang Tamu

Jung In Ki

as Kim Myeong Jae [Secretary general] (Ep. 3-4)

Bintang Tamu

Hong Ye Ji

as [Reporter] (Ep. 3-4)

Bintang Tamu

Lee Se Na

as Kim Da Gyeong (Ep. 4)

Bintang Tamu

Park Kyung Ri

as Ko Yun Ju [Young] (Ep. 4)

Bintang Tamu

Nam Hee Soo

as [ID office clerk] (Ep. 4)

Bintang Tamu

Park Joo Hyung

as [Drug gang boss] (Ep. 4, 11)

Bintang Tamu

Kim Do Vin

as (Ep. 4, 13)

Bintang Tamu

Kim Jong Ho

as [Attorney] (Ep. 5)

Bintang Tamu

Jung Dong Gyu

as Lee Gang Ho (Ep. 5-6)

Bintang Tamu

Park Jung Eon

as Lee Yeong Suk (Ep. 5-6)

Bintang Tamu

Seo Young Sam

as Park Yeong Su (Ep. 5-6)

Bintang Tamu

Lee Yoon Sang

as Park Ju Won (Ep. 5-6)

Bintang Tamu

Kim Jung Jin

as Kim A Sun (Ep. 5-6)

Bintang Tamu

Choi Gyo Shik

as Priest Ha (Ep. 5-6)

Bintang Tamu

Kim Jin Goo

as Kim Dong Yeong (Ep. 6)

Bintang Tamu

Lee Eun Ju

as Hwang Hyeon Ju (Ep. 6)

Bintang Tamu

Han Seung Yup

as Han Sang Jin (Ep. 6)

Bintang Tamu

Do Mi Yeon

as Ko Yu Ri (Ep. 6)

Bintang Tamu

Kim Deok Ju

as [A Sun's mother] (Ep. 6)

Bintang Tamu

Jun Joon Woo

as [Police officer] (Ep. 6)

Bintang Tamu

Shin Bi

as Jang Yu Bin (Ep. 6, 8-9)

Bintang Tamu

Kim Do Won

as [Hyeong Rak's grandson] (Ep. 7)

Bintang Tamu

Yeon Je Wook

as [Loan shark] (Ep. 7)

Bintang Tamu

Park Woo Jae

as [CIO security guard] (Ep. 7)

Bintang Tamu

Kim Nam Jin

as [Myeong Jae's wife] (Ep. 7-8)

Bintang Tamu

Jeon Hye Won

as [Myeong Jae's daughter] (Ep. 7-8)

Bintang Tamu

Seong Byung Sook

as [Tae Yeol's mother] (Ep. 8)

Bintang Tamu

Lee Moo Nyoung

as [CIO protester] (Ep. 8)

Bintang Tamu

Jin Shi Won

as [Reporter] (Ep. 8)

Bintang Tamu

Han Jae Young

as [Yeoyeong Inn owner] (Ep. 8-9)

Bintang Tamu

Oh Ki Hwan

as Kon Sun Chun [Prosecutor] (Ep. 8-9)

Bintang Tamu

Kim Dong Gon

as [News program panelist] (Ep. 8)

Bintang Tamu

Gi Hwan

as Ryu Seong Hyeon [Prosecutor] (Ep. 8-9)

Bintang Tamu

Lee Jin Seung

as Park Jun Suk (Ep. 8-9)

Bintang Tamu

Gyeol Hwi

as Park Du Sik [Young] (Ep. 8, 11)

Bintang Tamu

Kim Sung Yong

as Jeon Hong Go (Ep. 9)

Bintang Tamu

Nam Jung Woo

as Won Bok Dong [Sergeant] (Ep. 9)

Bintang Tamu

Kwon Tae Won

as [Police officer] (Ep. 9-10)

Bintang Tamu

Yoo Mi Sun

as [Saleswoman] (Ep. 10)

Bintang Tamu

Han Bo Bae

as Min Sang A [Young] (Ep. 10, 16)

Bintang Tamu

Kim Joo Ah

as [Orphanage employee] (Ep. 11)

Bintang Tamu

Park Sang Yong

as [Won Jong's attorney] (Ep. 12)

Bintang Tamu

Kim In Suk

as [Real estate agent] (Ep. 7)

Bintang Tamu

Lee So Ra

as [Nurse] (Ep. 10)

Bintang Tamu

Jang Myoung Un

as [Hyeong Rak's security team] (Ep. 14)

Bintang Tamu

Min Choong Suk

as [Police officer] (Ep. 15)

Bintang Tamu

Yook Mi Ra

as [Assemblywoman] (Ep. 15)

Bintang Tamu

Park Jae Wan

as Assemblyman Cho (Ep. 15)

Bintang Tamu

Lee Jae Woo

as [Assemblyman] (Ep. 15)

Bintang Tamu

Jeong Seung Wook

as [Reporter] (Ep. 15)

Bintang Tamu

Ma Jung Pil

as Attorney Park (Ep. 16)

Bintang Tamu

Kwon Ji Hwan

as [Agent] (Ep. 16)

Bintang Tamu

Kim Dong Ho

as Cheon U Jin

Bintang Tamu

Im Jung Ok

as Nurse KIm

Bintang Tamu

Yoon Tae Soo

as [Student protestor]

Bintang Tamu

Lee Hwi Won

as [Senior gangster]

Bintang Tamu

Lee Dong Soo

as [Interviewer]

Bintang Tamu

Jeon Se Yong

as [Public hearing host]

Bintang Tamu

Yoo In Sun

as [Airborne Division employee]

Bintang Tamu

Lee Ha Eum

as [Hankuk University student protestor]

Bintang Tamu

Son Jeong Won

as [CIO staff]

Bintang Tamu

Min Tae Hong

as [Freshman protester]

Bintang Tamu

Kim Jin Kyu

as [Daehan Jeil Daily staff]

Bintang Tamu

Park Jong Wook

Bintang Tamu

Joo In Ae

Bintang Tamu

Song Hyun Wook

Sutradara

Park So Yeon

Sutradara

Jung Hye Eun

Screenwriter

Song Ja Hun

Screenwriter

Baek Chul Hyun

Screenwriter

Park Geun Hyung

as Lee Man Ho (Ep. 1-2)

Cameo

Han Sun Hwa

as Choi Yeon Su [Young] (Ep. 1-3, 8, 10, 12, 14-16)

Cameo

Yeon Woo Jin

as Han Jeong Hyeon / Lee Seok Gyu [Young] (Ep. 1-5, 7-10, 12, 14-16 )

Cameo

Myung Gye Nam

as [Judge] (Ep. 16)

Cameo