Composer
Director
Editor
Screenwriter
Main Role
- Seo Kang Joon Main Role
- Han Seok Kyu Main Role
- Kim Hyun Joo Main Role
Support Role
- Park Joo Hee Support Role
- Heo Sung TaeJang Hae Ryong [Special crime squad leader]Support Role
- Joo Jin MoPark Jin Woo [Deputy commissioner]Support Role
- Jung Do WonHong Jae Shik [Tae joo's aide]Support Role
- Kim Soo JinYeom Dong Sook [Commissioner]Support Role
- Ahn Kil KangKim Jae Myung [Young Goon's father]Support Role
- Woo Jeong WonPark Ji Hyun [Psychiatrist]Support Role
- Park Ji HoonPark Shi YeongSupport Role
- Jung Soon WonJung Han WookSupport Role
- Kim Dae GeonDetective Chan HeeSupport Role
- Park Sung IlDepartment Head KimSupport Role
- Kim Dan WooAh Reum [Byeong Gil's daughter]Support Role
- Jeon Seok ChanKim Jo HanSupport Role
- Park HoonYoon Ji Hoon [Han Tae Joo's husband]Support Role
- Kim Dong HyunKim Sang JoonSupport Role
- Han Sang Hoon[Coroner]Support Role
- Yoo Jung HoPark Jeong GeunSupport Role
- Park Mi Hyun[Young Goon's mother]Support Role
- Shin Hyun JongMin Young Ki [District Prosecutor]Support Role
- Lee EolJang Hyun GooSupport Role
Guest Role
- Lee Jae YoonKim Gang Wook [Detective] (Ep. 1-2, 12-13)Guest Role
- Jung Min SungSon Byeong Gil [Kidnapper] (Ep. 1-2)Guest Role
- Park Yong(Ep. 1)Guest Role
- Yu Seung Il[Driving violator] (Ep.1)Guest Role
- Kim Geon UKim Cha Hoon (Ep. 1-2)Guest Role
- Moon Woo JinKim Young Goon [Young]Guest Role
- Lee Seung ChulChairman Jung Seok TaeGuest Role
- Chae Dong HyunLee Dong Yoon [Prosecutor] (Ep. 3-4)Guest Role
- Kim Yong JiLee Hyo Jung (Ep. 3-4)Guest Role
- Yoo Ha JoonOh Sang DoGuest Role
- Lee Joong Ok[Jae Shik's friend in drugstore](Ep. 5, 8, 12)Guest Role
- Lee Nam HeeShin Oh Sung [CEO of Oh Sung Capital]Guest Role
- Yu Yeon Seok[Detective]Guest Role
- Kim Seung Hyun[Trafficker]Guest Role
- Kim Dong HyunKim Sang Joon (Ep. 1-2)Guest Role
- Lee Dong Kyu[Reporter]Guest Role
- Kim Joo YeonBaek Song IGuest Role
- Yi SeoJang Ji Yoon (Ep. 14)Guest Role
- Han Seung Soo[Regional investigation unit detective]Guest Role
- Won Gun Su[Detective 2]Guest Role
Bit part
- Shin Moon Sung(Ep.10)Bit part
- Yong Jin[Prisoner]Bit part
- Jang Eui Don[Patient]Bit part
- Seo Myung Chan[Corpse Gangster]Bit part
Unknown
- Jeon Jin Oh Unknown
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