Pemeran Trigger

Kim Nam Gil (김남길)

as Lee Do

Pemeran Utama

Kim Young Kwang (김영광)

as Moon Baek

Pemeran Utama

Woo Ji Hyun

as Yoo Jeong Tae [Student]

Pemeran Pembantu

Park Hoon (박훈)

as Koo Jeong Man [Boss’ backup handler]

Pemeran Pembantu

Kim Won Hae

as Cho Hyeon Sik [Station chief]

Pemeran Pembantu

Jang Dong Ju

as Jang Jeong U [Police officer]

Pemeran Pembantu

Yang Seung Ri

as Kong Seok Ho [Glorypa boss]

Pemeran Pembantu

Lee Seung Hee

as [Detective]

Pemeran Pembantu

Kang Chae Young

as Park So Hyeon [Nurse] (Ep. 1, 8-10)

Bintang Tamu

Do Eun Bi

as Ko Ji Yeong [Water purifier coordinator] (Ep. 1)

Bintang Tamu

Kang Hak Soo

as [Detective] (Ep. 1)

Bintang Tamu

Hwang Bo Jeong Il

as [Room #308] (Ep. 1)

Bintang Tamu

Sun Woo Sun

as [Psychiatrist] (Ep. 1, 9)

Bintang Tamu

Carson Allen

as [Subway rider] (Ep. 1)

Bintang Tamu

Lee Seung Won

as [Subway seller] (Ep. 1)

Bintang Tamu

Hwang Jae Hoon

as [Hostel manager] (Ep. 1, 9-10)

Bintang Tamu

Lee Suk

as Jeo Won Sung [Sex offender] (Ep. 1-3)

Bintang Tamu

Gu Hyun

as Lee Do [Child] (Ep. 2, 9)

Bintang Tamu

Yoo Byung Sun

as [Taxi driver] (Ep. 2)

Bintang Tamu

Cha Young Mi

as [Mart shopper] (Ep. 2)

Bintang Tamu

Song Kyung A

as [Mart shopper] (Ep. 2)

Bintang Tamu

Jang Yong Hee

as [Taxi passenger] (Ep. 2)

Bintang Tamu

Kim Dae Geun

as [Yong Gu’s subordinate] (Ep. 2)

Bintang Tamu

Jo Han Chul

as Captain Cho [Team chief] (Ep. 2-3)

Bintang Tamu

Park Yoon Ho

as Park Gyu Jin [High school student] (Ep. 2, 6-7)

Bintang Tamu

Hong Min Gi

as Kang Seong Jun [High school student] (Ep. 2, 6-7)

Bintang Tamu

Son Bo Seung

as Seo Yeong Dong [High school student] (Ep. 2, 6-7)

Bintang Tamu

Shin Moon Sung

as Hwang Seok Min [Inspector] (Ep. 3, 9-10)

Bintang Tamu

Jeon Soo Ji

as [Situation room chief] (Ep. 3, 7)

Bintang Tamu

Park Joo Young

as Ji Ung [Chauffeur] (Ep. 4)

Bintang Tamu

Ahn Se Ho

as Kim Deok Hyeon [Rival organization head] (Ep. 4)

Bintang Tamu

Yun Ki Chang

as [CEO] (Ep. 4)

Bintang Tamu

Han Sa Myung

as [Internal affairs investigator] (Ep. 4)

Bintang Tamu

Kim Nak Gyun

as [TV station manager] (Ep. 4)

Bintang Tamu

Kim Joong Hee

as Wang Dae Hyeon [Reporter] (Ep. 4, 7-10)

Bintang Tamu

Park Gwang Jae

as Yong Gu (Ep. 6)

Bintang Tamu

Song Yoo Hyun

as [Teacher] (Ep. 6)

Bintang Tamu

Jeon Kwang Jin

as [Student council president] (Ep. 6)

Bintang Tamu

Kim In Kwon

as [Parcel receiver] (Ep. 7)

Bintang Tamu

Foster Burden

as Jake (Ep. 8, 10)

Bintang Tamu

Jung Woong In

as Yun Won Cheol [Police chief] (Ep. 8)

Bintang Tamu

Park Jung Hak

as Kwon Deok Su [Commissioner General of Police] (Ep. 8)

Bintang Tamu

Lee Ji Hoon

as Su Ri Nam [Computer repair shop owner] (Ep. 8-10)

Bintang Tamu

Ko Sang Ho

as [NIS agent] (Ep. 8-10)

Bintang Tamu

Min Sung Wook

as [NIS team leader] (Ep. 8-10)

Bintang Tamu

Han Ji An

as [Child in protest] (Ep. 10)

Bintang Tamu

Park Geon Ju

as Kim Yeon Su

Bintang Tamu

Cha Rae Hyoung

as Seo Hyeong Ju

Bintang Tamu

Moon Sung Hyun

as Moon Baek [Teen]

Bintang Tamu

Lee Ja Ryoung

as [Landlord]

Bintang Tamu

Kang Shin Chul

as [Blue Brown organizer]

Bintang Tamu

Konstantin Romanenko

as [Gangster]

Bintang Tamu

Lee Joo Han

as [Citizen with a gun]

Bintang Tamu

Kim Han Gyeol

as [Nurse] (Ep. 3)

Bintang Tamu

Kang Myoung Soo

as [Police]

Bintang Tamu

Hwang Sang Jun

Composer

Kwon Oh Seung

Screenwriter & Sutradara