Chief Producer
Cinematography
Director
Martial Arts Director
Screenwriter
Main Role
- Kim Soo HyunDo Min JoonMain Role
- Jun Ji HyunCheon Song YiMain Role
- Park Hae Jin Main Role
- Yoo In NaYoo Se MiMain Role
Support Role
- Shin Sung RokLee Jae Kyung [Hee Kyung's brother]Support Role
- Kim Chang WanJang Young Mok [Min Joon's friend]Support Role
- Na Young HeeYang Mi Yeon [Song Yi's mother]Support Role
- Ahn Jae HyunCheon Yoon Jae [Song Yi's younger brother]Support Role
- Uhm Hyo SubCheon Min Goo [Song Yi's father]Support Role
- Oh Sang JinProsecutor Yoo Suk [Se Mi's older brother]Support Role
- Kim Hee WonDetective Park Byung HeeSupport Role
- Kim Kang HyunYoon Bum [Song Yi's manager]Support Role
- Kim Bo MiMin Ah [Song Yi's stylist]Support Role
- Jo Hee BongPresident Ahn Dong Min [CEO of Song Yi's management agency]Support Role
- Hong Jin KyungHong Hye In / Hong Bok Ja [Song Yi's high school classmate]Support Role
- Lee Jung GilLee Bum Joong [Hee Kyung's father]Support Role
- Sung Byung SookHong Eun Ah [Hee Kyung's mother]Support Role
- Lee Il HwaHan Sun Yeong [Se Mi's mother]Support Role
- Lee Yi KyungLee Shin [Jae Kyung's secretary]Support Role
- Kim Hyun SooCheon Song Yi [Young] / Seo Yi HwaSupport Role
- Yoo In YoungHan Yoo RaSupport Role
- Jo Seung HyunLee Hee Kyung [Young]Support Role
- Jo Se HoCheol SooSupport Role
- Nam Chang HeeHyukSupport Role
- Han Eun Sun[Song Yi's makeup artist]Support Role
Guest Role
- Jung Ji SoonManager Moon [Se Mi's manager] (Ep. 1, 4)Guest Role
- Chuk Jae Hee[Min Joon's colleague] (Ep. 1, 4, 9)Guest Role
- Choi Dae Sung[Min Jun's colleague] (Ep. 1, 4, 9)Guest Role
- Jang Sung Bum[Production crew] (Ep. 1, 5-7)Guest Role
- Yoo Joon SangSection Chief Yoo (Ep. 2-3)Guest Role
- Serri[Junior actress] (Ep. 3)Guest Role
- Yoo Jang Young[Doctor] (Ep. 3)Guest Role
- Kim Hye WonYoo Se Mi [Young] (Ep. 3, 6, 8)Guest Role
- Park Jung AhNoh Seo Yeong [Bride] (Ep. 4)Guest Role
- Jang Hang JoonPark Min Kyu [Director] (Ep. 4)Guest Role
- Son Eun SeoHwang Jin Yi [Gisaeng] (Ep. 4)Guest Role
- Lee Geum Ju[Yi Hwa's mother] (Ep. 4-5)Guest Role
- Jin Hyun KwangKim Hyuk Soo [Daehan Daily Reporter] (Ep. 4-6)Guest Role
- Choi Min[Detective] (Ep. 5)Guest Role
- Kim Soo RoLee Hyung Wook (Ep. 5)Guest Role
- Han Seo YeonHan Yoo Seon [Yoo Ra's sister] (Ep. 5, 10)Guest Role
- Kim Hyo Myung[Gas station guy] (Ep. 6)Guest Role
- Choi Woong[Han Yoo Ra's fan] (Ep. 7)Guest Role
- Kim Tae Young[Song Yi's doctor] (Ep. 8)Guest Role
- Kim Yoon Tae[Interrogation Detective] (Ep. 7-8)Guest Role
- Kim Hae InYang Min Joo [Jae Kyung's ex-wife] (Ep. 7, 17-19)Guest Role
- Jeon Jin SeoCheon Yoon Jae [Young] (Ep. 9)Guest Role
- Park Young Gyu[Doctor in Joeson era] (Ep. 11)Guest Role
- Jung Eun PyoYoon Sung Dong [Joseon realtor](Ep.6) / Yoon Sung Dong's descendant [Realtor] (Ep. 12)Guest Role
- Lee Ja Min[Nurse in mental hospital] (Ep. 14, 17)Guest Role
- Bae SuzyGo Hye Mi [Min Joon's student] (Ep. 17)Guest Role
- Yeon Woo JinLee Han Kyung [Hee Kyung's eldest brother] (Ep. 18)Guest Role
- Ryu Seung RyongHeo Gyun [Joseon poet] (Ep. 19)Guest Role
- Yang Joo HoWang Jae Soo (Ep. 20)Guest Role
- Sandara Park[Actress] (Ep. 21)Guest Role
- Kim Won Joon[Actor] (Ep. 21)Guest Role
- Jo Woo JinHeo Jun's assistant [Joseon era]Guest Role
- Kim Kyul[Doctor of emergency room]Guest Role
- Song TaoZhang Ti WeiGuest Role
- Jung Myung Joon[Laments about getting old]Guest Role
- Yoon Chae EunYe DamGuest Role
- Kim Sung Ho[Cinematographer]Guest Role
- Jo Seung YunKim Geun Su [Assistant prosecutor general] (Ep. 16)Guest Role
- Choi Hyo EunHyo NaGuest Role
- Ji Sang Hyeok Guest Role
Unknown
- Yoo Tae Woong Unknown
- Min Ji Yul Unknown
- Lee Hae Woon Unknown
- Jung Hyun Seok Unknown
- Park Jong Seol Unknown
- Byeon Woo Jong Unknown
- Jang Joo Yeon Unknown
- Park Seong Kyun Unknown
- Han Dong Hwan Unknown
- Choi Seung Il Unknown
- Im Jung Ok Unknown
- Kim Min Chae Unknown
- Son Jung Rim Unknown
- Kim Shi Heon Unknown
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