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안재홍 as Kang Yang-hyun |
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이신영 as Cheon Gi-beom |
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정진운 as Bae Gyu-hyuk |
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김택 as Hong Sun-gyu |
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정건주 as Jung Kang-ho |
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김민 as Heo Jae-yoon |
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안지호 as Jung Jin-wook |
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Lee Jun-hyeok as Teacher Lee |
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Kim Hoe-jin as Messy hair |
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김수진 as Gyu-hyuk's Mother |
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강애심 as Principal's Wife |
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민무제 as Gi-beom's Father |
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최정윤 as Gi-beom's Mother |
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배성일 as Teacher 1 |
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강신철 as Teacher 2 |
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유인혜 as Teacher 3 |
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송창규 as Teacher 4 |
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장현성 as Yongsan High School Coach |
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박상면 as 50s Man |
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박재민 as Sportscaster |
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이상원 as Imho Middle School Coach |
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백도겸 as Referee |
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Kim Won-shik as Jemulpo High School 7 |
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전영 as Doctor |
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이태영 as Police |
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오현수 as Parent 1 |
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강현오 as Lynch Student 1 |
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노경 as Yongsan High School Trainer |
| Writing | Kwon Sung-hui | Screenplay |
| Writing | 김은희 | Screenplay |
| Camera | 서동기 | Camera Operator |
| Directing | 장항준 | Director |
| Costume & Make-Up | Choi Mi-yeon | Costume Design |
| Costume & Make-Up | Sin Eun-yeong | Makeup & Hair |
| Camera | 문용군 | Director of Photography |
| Editing | Ji Hyung-jin | Editor |
| Sound | 공태원 | Sound Supervisor |
| Production | 하정우 | Executive Producer |
| Editing | 허선미 | Editor |
| Writing | 장항준 | Adaptation |
| Lighting | Park Ji-sung | Lighting Director |
| Art | Lee Mi-kyoung | Production Design |
| Art | Im Ho-sang | Props |
| Sound | Nene Kang | Original Music Composer |
| Art | Kim Jung-hyun | Set Decoration |
| Visual Effects | 홍장표 | Special Effects Supervisor |
| Production | 장원석 | Executive Producer |
| Production | 김영훈 | Executive Producer |
| Production | 박윤호 | Producer |
| Camera | Kang Joo-shin | Director of Photography |
| Production | Kim Ji-hoon | Producer |
| Sound | 손용익 | Production Sound Mixer |
| Visual Effects | Yoon Jae-hun | VFX Supervisor |
| Production | Yoo Young-chae | Producer |
| Editing | 박진호 | Digital Intermediate |
| Crew | Park Young-sik | Martial Arts Choreographer |
| Camera | 박범준 | Key Grip |
| Camera | 민성애 | Still Photographer |
| Production | 이종명 | Line Producer |
| Directing | 송동규 | Assistant Director |
