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Kim Sang-kyung as Jeong Tae-hoon |
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Lee Sun-bin as Han Young-ju |
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Yoon Kyeong-ho as Seo Woo-sik |
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서영희 as Han Gil-ju |
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Jang Hyuk-jin as President Cho |
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김정태 as Han Hyun-jong |
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송영규 as Jeong Kyung-han |
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이지훈 as In-ho |
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성병숙 as Soon-im |
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김하언 as Jung Min-woo |
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Kim Kyung-sik as Ministry of Health and Welfare |
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Kim Dong-hwan as O2 Staff |
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Brad Curtin as |
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오동민 as Reporter |
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임영주 as Reporter |
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고서정 as Audience |
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조유진 as Victim 4 |
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조서후 as Eun-jeong |
| Production | Yoo Jae-hwan | Executive Producer |
| Sound | 박주강 | Sound Supervisor |
| Art | Shin Bo-ra | Props |
| Editing | Kim Yeol-hoe | Digital Intermediate |
| Lighting | O Seok-pil | Lighting Director |
| Art | Im Seong-mi | Production Design |
| Costume & Make-Up | 양진선 | Costume Design |
| Art | Jeon Sung-ho | Set Decoration |
| Editing | 조한울 | Editor |
| Production | Lee Jung-dong | Producer |
| Editing | Son Jin-woo | Assistant Editor |
| Visual Effects | Im Myeong-ju | VFX Supervisor |
| Crew | 장재욱 | Martial Arts Choreographer |
| Directing | Cho Yong-sun | Director |
| Writing | Cho Yong-sun | Writer |
| Writing | So Jae-won | Original Story |
| Art | 김경미 | Art Direction |
| Camera | 민성애 | Still Photographer |
| Production | 조일형 | Executive Producer |
| Production | 최평호 | Co-Executive Producer |
| Sound | 선성욱 | Sound Effects Editor |
