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설경구 as Kang Ho-chang |
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천우희 as Song Jung-wook |
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문소리 as Gun-woo's mother |
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오달수 as Do Ji-yeol |
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고창석 as Teacher Jung |
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강신일 as Principal |
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성유빈 as Kang Han-gyeol |
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남기애 as Gyu-beom's grandmother |
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이미은 as E-den's mother |
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Yoo Jae-sang as Gun-woo |
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Jung Yoo-ahn as Yoon-jae |
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정택현 as E-den |
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노정의 as Ji-ho |
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정승길 as Police |
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Lee Bong-gyu as |
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김성오 as (uncredited) |
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최선자 as |
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이나라 as Kang Han-gyeol Mother |
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이주한 as Hancheong Police Station Officer 1 |
| Writing | Kim Gyeong-mi | Writer |
| Writing | Seigo Hatasawa | Novel |
| Sound | 김태성 | Original Music Composer |
| Camera | Lee Chang-jae | Director of Photography |
| Lighting | Yoon Jong-han | Lighting Director |
| Sound | 이상준 | Production Sound Mixer |
| Art | Kim Tae-yeong | Production Design |
| Art | 김남호 | Set Decoration |
| Costume & Make-Up | 조희란 | Costume Design |
| Costume & Make-Up | 손은주 | Makeup & Hair |
| Editing | 신민경 | Editor |
| Sound | 이성진 | Sound Supervisor |
| Sound | 이승철 | Supervising Sound Editor |
| Sound | Choi Jung-in | Original Music Composer |
| Crew | 김철준 | Martial Arts Choreographer |
| Writing | 유영아 | Writer |
| Production | Kim Ho-sung | Executive Producer |
| Production | 小出真佐樹 | Co-Producer |
| Production | Lee Bok-seon | Line Producer |
| Editing | 박진영 | Digital Intermediate |
| Visual Effects | Yoon Dae-won | Special Effects Supervisor |
| Editing | 류연 | Digital Intermediate Producer |
| Visual Effects | Yang Il-seok | VFX Supervisor |
| Visual Effects | Park Si-hwan | CGI Director |
| Camera | Kwon Byung-soo | Camera Operator |
| Camera | Jeon Seung-hwan | Grip |
| Directing | 김지훈 | Director |
| Production | Lee Soo-nam | Executive Producer |
| Production | Jin Il-kyu | Producer |
| Production | 조혜정 | Line Producer |
| Art | 박상희 | Art Designer |
| Art | 김이슬 | Props |
