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Bae Doo-na as Ok Taek-seon |
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Kim Yoon-seok as Lee Gyun |
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장기하 as Kim Yeon-woo |
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Son Suk-ku as Nam Su-pil |
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Seong-kun Mun as Professor Seong |
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Hee-won Kim as Director of Research Institute |
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Oh Hyun-kyung as Young-hee |
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민진웅 as Jeong-hun |
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Yeom Hye-ran as Ms. Yeom |
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유순웅 as Na Jeong-bae |
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이경진 as Taek-seon's Mother |
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최형인 as Gyun's Mother |
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Kim Ye-won as Ji-seon |
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Hee-bon Park as Yi-ju |
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곽민호 as Manager Kim |
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Hong Seok-bin as Doctor 1 |
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김경일 as Doctor 2 |
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Cha Si-won as Cop 1 |
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카더가든 as Cop 2 |
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이남경 as Young Taek-seon |
| Directing | 강이관 | Director |
| Writing | 강이관 | Screenplay |
| Writing | 이지민 | Novel |
| Production | Park Un-kyoung | Producer |
| Production | Park Joo-young | Co-Producer |
| Production | 정창훈 | Producer |
| Editing | 양진모 | Editor |
| Sound | Lee Byung-woo | Original Music Composer |
| Art | 방길성 | Production Design |
| Production | 강대욱 | Line Producer |
| Writing | Kim Yoon-seok | Adaptation |
| Writing | 윤유경 | Adaptation |
| Directing | Son Jae-hyuk | Assistant Director |
| Camera | Hwang Ki-suk | Director of Photography |
| Camera | 박관열 | Key Grip |
| Lighting | 신경만 | Lighting Director |
| Art | 김남호 | Set Decoration |
| Art | 김순근 | Props |
| Sound | Kang Ju-suk | Production Sound Mixer |
| Costume & Make-Up | 조상경 | Costume Design |
| Costume & Make-Up | Hwang Hyun-gyu | Makeup & Hair |
| Costume & Make-Up | Kim Jeong-ja | Makeup & Hair |
| Crew | Yoo Sang-seob | Martial Arts Choreographer |
| Visual Effects | 홍장표 | Special Effects Supervisor |
| Sound | 김석원 | Sound Supervisor |
| Editing | 백성빈 | Digital Intermediate |
| Visual Effects | Yang Il-seok | Visual Effects |
| Visual Effects | 신진 | Visual Effects |
| Visual Effects | 박의동 | Visual Effects |
| Crew | 천준호 | Stunts |
| Crew | 송원종 | Stunts |
| Crew | 윤대원 | Stunts |
