Pemeran Less Than Evil

Shin Ha Kyun (신하균)

as Woo Tae Seok

Pemeran Utama

Lee Seol (이설)

as Eun Sun Jae

Pemeran Utama

Park Ho San

as Jeon Choon Man

Pemeran Utama

Kim Gun Woo

as Jang Hyung Min / Jang Seon Ho

Pemeran Utama

Ryu Tae Ho

as Choi Jung Woo [Police Chief]

Pemeran Pembantu

Bae Da Bin

as Shin Ka Young [Detective]

Pemeran Pembantu

Yoon Hee Seok

as Jo Doo Jin [Public Relations Officer]

Pemeran Pembantu

Bae Yoo Ram

as Ban Ji Deuk [Hacker]

Pemeran Pembantu

Yang Jae Young

as Lee Moon Ki [Detective]

Pemeran Pembantu

Ha Eun Seom

as Team Leader Sung

Pemeran Pembantu

Kim Ho Jung

as [Forensic police officer]

Pemeran Pembantu

Shim Eun Woo

as Jeon Joo Yeon

Pemeran Pembantu

Uhm Tae Yoon

as Seo Ji Hun [Kidnapping case witness]

Pemeran Pembantu

Ha Min

as Goo Young Mi

Pemeran Pembantu

Kim Yi Kyeong

as Kwon Soo Ah

Pemeran Pembantu

Min Joon Hyun

as [Section chief]

Pemeran Pembantu

Cha Sun Woo

as Chae Dong Yoon [Tae Seok's partner]

Pemeran Pembantu

Hong Eun Hee

as Kim Hae Joon [Tae Seok's wife]

Pemeran Pembantu

Bae Yoon Kyung

as Woo Tae Hee [Tae Seok's sister]

Pemeran Pembantu

Cho Yi Hyun (조이현)

as Bae Yeo Wool [Tae Hee's friend]

Pemeran Pembantu

Lee A Ra

as Hwang Eun Joo (Ep.1)

Bintang Tamu

Jung Sung Yoon

as [Office worker in prosecution]

Bintang Tamu

Joel Roberts

as [US Soldier]

Bintang Tamu

Jeon Jin Ki

as Song Man Soo [Convict]

Bintang Tamu

Lee Yong Joo

as Go Joo Seong [Murderer]

Bintang Tamu

Kwon Tae Won

as [Director General of Police]

Bintang Tamu

Ahn Nae Sang

as [Commissioner general]

Bintang Tamu

Jung Myung Joon

as Han Nam Ki [Attorney]

Bintang Tamu

Lee Jae Yoon

as Kang Woo Joon [The Punisher]

Bintang Tamu

Kim Ki Cheon

as Chief Seo Jae Geun

Bintang Tamu

Song Min Hyung

as Lee Soo Han [Hankyul Hospital Director]

Bintang Tamu

Kim Jong Gu

as Choi Yang Soo [Assemblyman]

Bintang Tamu

Kim Bo Kyung

as [Detective]

Bintang Tamu

Hong Seo Joon

as Yoo Jung Soo

Bintang Tamu

Choi Jong Won

as Lee Sung Hak [Serial Killer]

Bintang Tamu

Park Seon Woo

as [Police officer]

Bintang Tamu

Lee Ji Wan

as [High school girl]

Bintang Tamu

Im Too Chul

as [Internet broadcast BJ]

Bintang Tamu

Bae Hyun Kyung

as Jang Seok Gu (Ep. 21-24)

Bintang Tamu

Lee Shi Woo

as Song Yoo Jin |Young]

Bintang Tamu

Han Seung Hyun

as [Ward Office Staff]

Bintang Tamu

Kim I San

as [Announcer]

Bintang Tamu

Ahn Soo Bin

as [Injured policewoman]

Bintang Tamu

Jeong Seo Yeon

as Kim Sung Mi

Bintang Tamu

Kang Pil Sun

as [Doctor]

Bintang Tamu

Lee Sun Young

as [CSI staff]

Bintang Tamu

Han Bom

as [Banker]

Bintang Tamu

Park Se Hoon

as [Coast guard]

Bintang Tamu

Jo Yong Jin

as Im Ji Ho [Young]

Bintang Tamu

Sul Ji Yoon

as Kim Nan Hee

Bintang Tamu

Kim Dae Kook

as [Bank security office staff]

Bintang Tamu

Kim Won Joong

Bintang Tamu

Kim Dong Won

as Song Yoo Jin [Man Soo's son]

Bintang Tamu

Hwang Seok Jeong

as Hwang Bu Kyung [Victim's mother]

Bintang Tamu

Ahn Hye Won

as [Detective Jo's wife]

Bintang Tamu

Jeon Jong Hyeok

Composer

Kim Dae Jin

Sutradara

Lee Dong Hyeon

Sutradara

Heo Joon Woo

Screenwriter

Kang Yi Hun

Screenwriter