Composer
Director
Screenwriter
Main Role
- Seo Kang Joon Main Role
- Gong Seung Yeon Main Role
- Lee Joon Hyuk Main Role
- Park Hwan Hee Main Role
- Kim Sung Ryung Main Role
- Yoo Oh Sung Main Role
- Park Young Gyu Main Role
Support Role
- Kim Won HaeKang Jae Sik [Kang So Bong's father]Support Role
- Kim Hye EunNam Ho Yeon [Nam Gun Ho's daughter]Support Role
- Seo Eun YoolNo Hee Dong [Ho Yeon’s son]Support Role
- Choi Deok MoonDavidSupport Role
- Kim Hyun SookReporter JoSupport Role
- Oh Hee JoonJo In TaeSupport Role
- Son Jin HwanDr. Kim Young HoSupport Role
- Chae Dong HyunGo Chang Jo [Autonomous team]Support Role
- Cha In HaHwang Ji Yong [Autonomous team]Support Role
- Oh Joo EunTeam Lead Yeo [Autonomous team]Support Role
- Choi Byung MoChoi Sang KookSupport Role
- Oh Eui ShikCha Hyeon Jun [Doctor]Support Role
- Jo Jae RyongPark Byun Seo / Secretary ParkSupport Role
- Choi Dae Hoon[Head Bodyguard]Support Role
- Cha Yeob[Robocop]Support Role
- Park Bo Mi[PK group bodyguard]Support Role
- Oh Han KyulNam Shin [Young] / A.I. robot Nam Shin ISupport Role
- Lee Joo ChanNam Shin [Teenager] / A.I. robot Nam Shin IISupport Role
- Choi Hyo SangProfessor Lee [Chairman Nam’s doctor]Support Role
Guest Role
- Heo Young Ji[Entertainer] (Ep. 1)Guest Role
- Na Do Yool[Hall employee] (Ep. 2)Guest Role
- Ok Joo Ri[Fortune teller] (Ep. 28)Guest Role
- Sung Chan Ho[PK Group-Board member]Guest Role
- Oh Jin HaHye JinGuest Role
- Kim Seung SooNam Jung Woo [Shin’s father]Guest Role
- Kim Joo Ah Guest Role
- Ahn Ryeo Jin Guest Role
Bit part
- Park Ah Sung Bit part
Unknown
- Lee So Mi Unknown
- Park Yong Unknown
- Seo Kwang Jae Unknown
- Song Young Ah Unknown
- Gu Da Yeon Unknown
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