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Ryu Seung-ryong as Kang Jin-bong |
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Yum Jung-ah as Oh Se-yeon |
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Park Se-wan as Young Oh Se-yeon |
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Ong Seong-wu as Park Jeong-woo |
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심달기 as Hyun-jeong |
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하현상 as Kang Seo-jin |
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Kim Da-in as Kang Ye-jin |
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박영규 as Jin-bong's Father |
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김혜옥 as Jin-bong's Mother |
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Jeon Moo-song as Mr. Choi |
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신신애 as Landlady |
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Kim Jong-soo as Mokpo High School Teacher |
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Ko Chang-seok as Purser |
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Yeom Hye-ran as Hyeon-jeong |
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Kim Sun-young as Jeong-ah |
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류현경 as Homeroom Teacher |
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김선화 as Se-yeon's Boarding House Friend |
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박경찬 as Doctor |
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정영섭 as PD |
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김인경 as Choreography team |
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황정윤 as Nurse |
| Camera | Baek Yoon-seuk | Director of Photography |
| Camera | Hong Eue-su | Key Grip |
| Costume & Make-Up | Kang Dong-yul | Costume Design |
| Sound | Gang Hye-yeong | Sound Designer |
| Art | Son Min-jeong | Production Design |
| Art | Kim Jin-hee | Art Direction |
| Art | Kang Moo-seong | Set Decoration |
| Art | Lee Bong-woo | Set Decoration |
| Visual Effects | 도광일 | Special Effects Supervisor |
| Editing | Park Jin-young | Digital Intermediate |
| Sound | 최태영 | Sound Supervisor |
| Art | 김영복 | Props |
| Lighting | 김창호 | Lighting Director |
| Sound | Lee Soon-sung | Production Sound Mixer |
| Crew | Song Min-seok | Martial Arts Choreographer |
| Visual Effects | 박대훈 | Special Effects Supervisor |
| Costume & Make-Up | Hwang Hyun-gyu | Makeup & Hair |
| Editing | 양진모 | Editor |
| Costume & Make-Up | 최세연 | Costume Design |
| Sound | Yang Hye-jin | Sound Editor |
| Costume & Make-Up | Kim Jeong-ja | Makeup & Hair |
| Writing | Lee Yoon-ho | Storyboard |
| Production | 최병환 | Executive Producer |
| Visual Effects | 박의동 | VFX Supervisor |
| Writing | Bae Se-young | Writer |
| Directing | 최국희 | Director |
| Sound | 김준석 | Original Music Composer |
| Visual Effects | 신진 | CGI Director |
| Production | 남성호 | Associate Producer |
| Production | Park Un-kyoung | Producer |
| Production | 기원규 | Executive Producer |
