Composer
Costume Designer
Original Creator
Screenwriter
Screenwriter & Director
Main Role
- Lee Sun KyunGo Se WonMain Role
- Lee Yoo YoungJung Jae YiMain Role
- Park Hee SoonLee Kang MooMain Role
- Seo Ji HyeChoi Soo Seok [Lieutenant]Main Role
- Lee Jae WonHong Nam IlMain Role
Support Role
- Jo Bok RaeSergeant Park [Lieutenant Cho's Partner]Support Role
- Choi Hee DoDetective ChoiSupport Role
- Moon Sung GeunDr. Myung Tae SukSupport Role
- Ahn Mi NaYoo JinSupport Role
- Cha HeeDr. HahnSupport Role
- Lee El Support Role
- Yoo TeoSecretary YoonSupport Role
- Lee Joo Won"The Fixer"Support Role
- Kim Joo HeonLim Jun KiSupport Role
- Kim Min SeoGo Se Won [Teen]Support Role
Guest Role
- Oh Yeon Ah[Se Won's Mom] (Ep. 1)Guest Role
- Lee Ga Kyung[Principal] (Ep. 1)Guest Role
- Jung Hyung Suk[Pediatrician] (Ep. 1)Guest Role
- Choi Jae Young[Doctor] (Ep. 1)Guest Role
- Joo Min Kyung[Doctor] (Ep. 1)Guest Role
- Kim Jin Goo[Executive] (Ep. 1)Guest Role
- Jeon So Nee[Reporter] (Ep. 1)Guest Role
- Bae Jin AhDr. Han (Ep. 1)Guest Role
- Kim Nam WooDr. Kim (Ep. 1)Guest Role
- Kim Joong Hee[Japanese Restaurant Owner] (Ep. 1)Guest Role
- Kwon Hyuk[ER doctor] (Ep. 1)Guest Role
- Son Kyung Won[Morgue guard] (Ep. 1)Guest Role
- Kong Seong HaMrs. Lim [Jun Ki's wife] (Ep. 1)Guest Role
- Kim Geon USe Won [Child] (Ep. 1, 5)Guest Role
- Won Mi WonJae Yi [from brain scan] (Ep. 2)Guest Role
- Kim Min Ji[Jae Yi stand-in] (Ep. 2)Guest Role
- Yoo Da Mi[Jae Yi stand-in] (Ep. 2)Guest Role
- Jung Gi Sub[Coroner] (Ep. 2)Guest Role
- Kim Jin Ok[Hee Jin's aunt] (Ep. 2)Guest Role
- Lee Young Sook[Jae Yi's caregiver] (Ep. 2, 4)Guest Role
- Uhm Tae GooTae Gu (Ep. 2-4)Guest Role
- Lee Yoon Jae[Polygraph examiner] (Ep. 3)Guest Role
- Lee Sol GuMr. Chang (Ep. 3)Guest Role
- Park Ji YeMi Na (Ep. 3)Guest Role
- Kim Gook Hee[Madame] (Ep. 3)Guest Role
- Heo Jin[Nam Il's mother] (Ep. 3-4)Guest Role
- Cha Ji Won[Saera Children's Clinic manager] (Ep. 4, 6)Guest Role
- Lee Sang Hee[Rest stop cashier] (Ep. 5)Guest Role
- Kim Chul YoonSohn Il Ju (Ep. 5)Guest Role
- Kim Eui GunDetective KimGuest Role
- Kim Ji Won[Baseball girl]Guest Role
- Kim Woo BinJae Min (Ep. 5)Guest Role
Unknown
- Hwang Moo Young Unknown
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