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김수로 as Cheon Seong-geun |
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박보영 as Han Song-i |
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Lee Chan-ho as Ok Gi-ho |
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김형범 as Cha Seung-ryong |
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김기방 as Meok-tong |
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Park Jin-Taek as Jin-gook |
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김영옥 as Seong-geun's Mother |
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하정우 as Doctor |
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Jang Hee-Su as Gi-ho's Mother |
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이용이 as Eun-sil's Mother |
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Lee Hyung-Kwon as Vice-principal |
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Gong Ho-seok as Teacher Choi |
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이한위 as Principal |
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김성령 as President Lee |
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문채원 as Lee Eun-sil |
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ლი მინ ჰო as Oh Sang-hoon |
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백성현 as Baek Jung-goo |
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Lee Eon-jeong as Chemistry Teacher |
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김병옥 as Publishing Company President |
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Kim Won-jin as Referee |
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Ji Hye-in as Ji Yeon |
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Son Min-ji as Interview Student 3 |
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오순태 as Ja Ba Nom |
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임주현 as Touchy Couple Male |
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유밀 as Touchy Couple Female |
| Writing | Choi Jin-won | Writer |
| Sound | Choi Man-Sik | Music |
| Production | Choi Yong-Gi | Producer |
| Costume & Make-Up | Lee Ja-Young | Costume Design |
| Editing | Shin Min-Gyeong | Editor |
| Lighting | Kim Jae-keun | Lighting Coordinator |
| Crew | Choi Deok-Gyu | Cinematography |
| Crew | Park Jung-ryul | Martial Arts Choreographer |
| Crew | Lim Wang-sub | Stunts |
| Production | Yook Kyung-sam | Line Producer |
| Editing | Kim Il-kwang | Digital Colorist |
| Art | Lee Ji-yeon | Production Design |
| Directing | Park Kwang-chun | Director |
