Composer
Director
Screenwriter
Main Role
- Shin Ha Kyun Main Role
- Yeo Jin Goo Main Role
- Choi Dae Hoon Main Role
- Kim Shin Rok Main Role
- Choi Sung Eun Main Role
Support Role
- Choi Jin HoHan Ki Hwan [Joo Won's father / Deputy chief of the National Police Agency]Support Role
- Kil Hae YeonDo Hae Won [Congresswoman of Munju City]Support Role
- Heo Sung TaeLee Chang Jin [CEO of JL Constructions / Chairman]Support Role
- Chun Ho Jin Support Role
- Nam Yoon SuOh Ji Hoon [Manyang police officer]Support Role
- Lee Kyu HoeKang Jin Mook [Supermarket owner]Support Role
- Jung Kyu SooJung Cheol Moon [Station chief]Support Role
- Son Sang GyuJo Gil Goo [Manyang police officer]Support Role
- Baek Suk KwangHwang Gwang Young [Manyang police officer]Support Role
- Park Ji HoonKwon Hyuk [Munju City prosecutor]Support Role
- Shim Wan JoonKang Do Soo [Homicide detective at Munju police station]Support Role
- Seo Jeong ShikKwak Oh-sub [Senior detective at Munju Police Station]Support Role
- Yoo Byung HoonLieutenant HaSupport Role
- Kang Min AhKang Min Jung [Jin Mook's daughter]Support Role
- Jun Soo HyunJang Oh Bok [Councilwoman Do's secretary]Support Role
- Park Bo KyungIm Seon Nyeo [Kang Do Soo's wife]Support Role
- Kim Bi BiHan Jeong ImSupport Role
Guest Role
- Kim Hi Eo RaBang Ju Seon (Ep. 1)Guest Role
- Moon Joo YeonLee Yoo Yeon [Dong Shik’s sister] (Ep. 1)Guest Role
- Jun Joon Woo[Detective] (Ep. 1)Guest Role
- Nam Dong Jin[Man looking for son] (Ep. 1)Guest Role
- Kim Sun Kyung[Neighborhood woman] (Ep. 1)Guest Role
- Kim Jung EunLee Kang Ja [Beauty salon customer] (Ep. 1)Guest Role
- Park Myung Shin[Yoo Yeon & Dong Shik's mother] (Ep. 1-2)Guest Role
- Lee Do HyunLee Dong Shik [Young] (Ep. 1-2, 5, 11)Guest Role
- Won Mi Won[Restaurant owner] (Ep. 1, 4)Guest Role
- Jung Jun Hwan[Nightclub guy] (Ep. 2)Guest Role
- Kim Dong Hyun[Detective] (Ep. 2)Guest Role
- Kim Jung Ho[Yoo Yeon & Dong Shik's father] (Ep. 2)Guest Role
- Jo Young Mi[Restaurant employee] (Ep. 2, 4)Guest Role
- Oh Young Mi[Restaurant worker] (Ep. 2, 4)Guest Role
- Ahn Soo Ho[Resident near Simju mountain] (Ep. 3)Guest Role
- Choi Chan HoPark Jung Je [Young] (Ep. 3-4, 11-13)Guest Role
- Kwon Ban Suk[Reporter] (Ep. 4)Guest Role
- Ban Hye Young[Reporter] (Ep. 4)Guest Role
- Yu Yeon Seok[Reporter] (Ep. 4)Guest Role
- Joo Eun Seo[Reporter] (Ep. 4)Guest Role
- Kang Yoo SeokIm Gyu Seok [Reporter] (Ep. 5, 8, 13)Guest Role
- Song Chang Gyu[Local resident] (Ep. 5)Guest Role
- Han Ye Ju[Local resident] (Ep. 5)Guest Role
- Jang Sung BumSang Yeob (Ep. 5, 7)Guest Role
- Jo Ji SeungYoon Mi Hye / Cherry [Min Jung's mother] (Ep. 8)Guest Role
- Ju Ye EunYoon Mi Hye [Young] (Ep. 8)Guest Role
- Shin Mi Young[Maria masseuse] (Ep. 8)Guest Role
- Yoon Boo Jin[Maria masseuse] (Ep. 8)Guest Role
- Lim Wook Jin[Massage parlor manager] (Ep. 8)Guest Role
- Chun Jung Ha[Maria masseuse] (Ep. 8)Guest Role
- Park Eun Young[Maria masseuse] (Ep. 8)Guest Role
- Jung Hye Kyung[Fish market woman] (Ep. 10)Guest Role
- Nam Mi Jung[Fish market woman] (Ep. 10)Guest Role
- Sung Nak Kyung[Chang Jin's ex-colleague] (Ep. 12)Guest Role
- Cha Shi Won[Employee] (Ep. 12)Guest Role
- Baek Sung Chul[Detective] (Ep. 12)Guest Role
- Han Ki JangKim Dol Suk (Ep. 12, 16)Guest Role
- Lee Ye BitOh Ji Hwa [Child] (Ep. 13)Guest Role
- Seol Woo HyungPark Jung Je [Child] (Ep. 13)Guest Role
- Kim Hyun WooLee Dong Sik [Child] (Ep. 13)Guest Role
- Kim Hyun WooLee Dong Shik [Young] (Ep. 13)Guest Role
- Lee Seung Joon[Police executive] (Ep. 13)Guest Role
- Kim Yong JinWon Sang Soo [Assemblyman] (Ep. 13-14)Guest Role
- Kim Sung YongPark Kyung Soo (Ep. 13-14)Guest Role
- Son Sung ChanPark Hyun Chul (Ep. 13-14)Guest Role
- Kim Seung TaeHan Kyung Soo (Ep. 13-14)Guest Role
- Lee Ja RyoungLee Bo Ram (Ep. 13-15)Guest Role
- Sung Chan Ho[Assemblyman] (Ep. 13-14)Guest Role
- Kim Won Suk[DUI checkpoint officer] (Ep. 14)Guest Role
- Kim Kyung Min[Officer] (Ep. 14)Guest Role
- Jung Hyun JoonHan Joo Won [Young] (Ep.14-15)Guest Role
- Woo Jeong WonLee Su Yeon (Ep. 14-15)Guest Role
- Lee Dong Kyu[News announcer] (Ep. 15)Guest Role
- Choi Hyuk Joo[Ho Cheol's elder daughter]Guest Role
- Jung Jae JinBang Ho Cheol [Ju Seon's father]Guest Role
- Cha Chung HwaLee Geum Hwa [Illegal immigrant]Guest Role
- Gu Bon Jin[Former detective]Guest Role
- Yoon Jong Goo[Munju police station detective]Guest Role
- Park Do WookKim Joon HoGuest Role
- Yoo Tae JooKang Jin Mook [Young]Guest Role
- Choi Sol Hee[Neighborhood woman]Guest Role
- Yang Jin Seon[Neighborhood woman]Guest Role
- Lee Hyun[Neighborhood woman]Guest Role
- Park Jee A[Neighborhood woman]Guest Role
- Lee Jong Shin[Munju Police Station detective]Guest Role
- Jin Tae Yeon[Beauty salon owner]Guest Role
- Lee Ji An[Interviewer #3] (Ep. 4)Guest Role
Unknown
- Kim Young Hee Unknown
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