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강은비 as Oh Sung-eun |
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이지훈 as Kang Bong-goo |
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전혜빈 as Bang Soo-yeon |
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박슬기 as Kim Mi-sook |
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신주아 as Baek Se-mi |
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김지영 as Biology teacher |
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Jeon Jae-hyeong as Ji Suk-goo |
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박예진 as Sung-eun's older sister |
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Kim Hae-sook as Sung-eun's mother |
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박길수 as AIDS / Chan Sung-bok |
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정동환 as Sung-eun's father |
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고호경 as Da-eun |
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정유미 as Class monitor |
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김수웅 as Head teacher |
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Ha Ji-eun as In-hwa |
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Lee Jae-pil as Kim |
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이민정 as Classmate |
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조한나 as Classmate |
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황신정 as Woman |
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최시연 as Nurse |
| Production | 이은 | Executive Producer |
| Directing | 정초신 | Director |
| Writing | Park Chae-woon | Screenplay |
| Production | 이종호 | Line Producer |
| Art | 이대훈 | Production Design |
| Sound | 윤해진 | Production Sound Mixer |
| Camera | 서정민 | Director of Photography |
| Lighting | 조성각 | Lighting Director |
| Editing | 남나영 | Editor |
| Sound | 김석원 | Sound Supervisor |
| Visual Effects | 조성배 | Special Effects Supervisor |
