Composer
Director
Screenwriter
Main Role
- Park Hae Jin Main Role
- Kim Min JungCha Do HaMain Role
- Park Sung Woong Main Role
- Yeon Jung Hoon Main Role
- Chae Jung AnSong Mi EunMain Role
- Jung Man Shik Main Role
Support Role
- Jang Hyun SungDepartment Head Jang of NISSupport Role
- Tae In HoSeo Gi ChulSupport Role
- Lee Si EonJi Seo Hoon [Chairman / Woon Kwang's boss]Support Role
- Oh Na RaSharon Kim [Mi Eun's friend]Support Role
- Kim Byung SeCha Myung Suk [Do Ha's father]Support Role
- Oh Hee JoonYang Sang Shik [Manager]Support Role
- Kim Bo MiPark Song Yi [Do Ha's best friend]Support Role
- Chun Ho Jin Support Role
- Shin Joo AhPi Eun Soo [Actress]Support Role
- Han Ji SunChoi Sul Ah [Coordinator]Support Role
- Kim Hyun JinJang Chul JoonSupport Role
- Kang Shin IlIm Suk Hoon [Head of NIS]Support Role
- Jo Seung YunChoi Jae Hyuk [Beak Infantry head agent]Support Role
- Park Seon Im[Ghost woman]Support Role
- Kim Jong GooRobert Yoon / Agent YSupport Role
- Lee Joon HyukLee Hyuk JoonSupport Role
- Moon Jae WonYong Jae MinSupport Role
- Lee El BinMo Jae YeongSupport Role
- Kahlid Elijah Tapia[Fan on subway]Support Role
- John D. MichaelsVictorSupport Role
- Lee Ah JinSon Jung Hye [Woon Gwang's makeup artist]Support Role
- Kim Si HyunWang MeiSupport Role
Guest Role
- Jin Seon Kyu[Journalist] (Ep. 1)Guest Role
- Im Ji Kyu[Movie director] (Ep. 1)Guest Role
- Joey AlbrightOfficer Perry (Ep. 1)Guest Role
- Bbaek Ga(Ep. 1)Guest Role
- Jeon Woon Jong[Bank robber] (Ep. 1) | [Assistant director] (Ep. 16)Guest Role
- Yoon Seo Hyun(Ep. 5-6, 13)Guest Role
- Jung Dong Gyu[Attorney general] (Ep. 8)Guest Role
- Song Min Gyo[Announcer] (Ep. 8, 13)Guest Role
- Song Joong Ki[Banker] (Ep. 9)Guest Role
- Namkoong Min[Actor] (Ep. 10)Guest Role
- Lee Jae YongFather Michael (Ep. 11-13)Guest Role
- Son Jong HakDirector Park (Ep. 13)Guest Role
- Jeon Gook HwanMo Byung Do [Seung Jae's grandfather] (Ep. 14)Guest Role
- Kwak Kyung TaekMa Da Shik [Director] (Ep. 15)Guest Role
- Kim Yeo Jin[Dong Hyun's wife] (Ep. 15-16)Guest Role
- Lee Do YupPD Choi (Ep. 15-16)Guest Role
- Kim Min Young[Woon Gwang's fan] (Ep. 16)Guest Role
- David McInnisPetrov [Russian officer]Guest Role
- Jo Wan Ki[Interrogator]Guest Role
- Ham Jin Sung[NIS agent]Guest Role
- Cha Bo Sung[Shop employee]Guest Role
- Yoo Sang Jae[Prosecution investigation officer]Guest Role
- Kwon Oh Jin[Groundskeeper of Mo family hunting grounds]Guest Role
- Jason Scott NelsonKim Seol Woo [Voice]Guest Role
- Anupam Tripathi[Electronics repair shop owner] (Ep. 7)Guest Role
- Choi Gyo Shik Guest Role
- Joo Sung Hwan Guest Role
- Jung Myung Joon Guest Role
- Kim Oh Bok Guest Role
- Kwon Hyuk Soo Guest Role
- Seo Hye Jin Guest Role
- Shin Young Kyu Guest Role
- Jang Tae Min Guest Role
- Hong Seo Joon Guest Role
- Kang Hyun Jung Guest Role
- Jung Byung Ho Guest Role
- Seol Chang Hee Guest Role
Unknown
- Kim In Woo Unknown
- Kim Ik Tae Unknown
- Jung Hyun Seok Unknown
- Yoon Jong Won Unknown
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