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Sim Hee-seop as Dong-jun |
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홍사빈 as Young Dong-jun |
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Shin Joo-hyup as Young Kang-hyeon |
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김소희 as Young Dong-hee |
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Kang Chae-yun as Yeong-ji 1 |
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Ju-Ryoung Kim as Dong-jun's Mother |
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김학선 as Dong-jun's Father |
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권지우 as Ju-ho |
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옥지영 as Yun-ju |
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권동호 as Seong-il |
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송창의 as Kang-hyeon |
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우미화 as Academy director |
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곽정길 as Elderly Man in Room 502 |
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안민영 as Dong-jun's Stepmother |
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손지나 as Kang-hyeon's Mother |
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Son Seong-chan as Kang-hyeon's Father |
| Directing | 백승빈 | Director |
| Writing | 백승빈 | Writer |
| Camera | 백성빈 | Director of Photography |
| Production | 김태완 | Executive Producer |
| Production | 김희경 | Producer |
| Editing | 문인대 | Editor |
| Editing | 백승빈 | Editor |
| Lighting | 고용진 | Lighting Director |
| Lighting | 윤종근 | Lighting Director |
| Sound | 구자완 | Original Music Composer |
| Art | 이희정 | Production Design |
| Costume & Make-Up | 강윤희 | Makeup & Hair |
| Sound | 윤상일 | Production Sound Mixer |
| Visual Effects | 김도형 | Special Effects Supervisor |
| Crew | 심상민 | Martial Arts Choreographer |
