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송중기 as Wolf-Boy / Chul-soo |
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Park Bo-young as Young Sun-yi / Eun-ju |
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Yoo Yeon-seok as Ji-tae |
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이영란 as Sun-yi |
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장영남 as Sun-yi's Mother |
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김향기 as Sun-ja |
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유승목 as Professor Kang Tae-shik |
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Shin Bi as Dong-mi |
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우정국 as Mr. Jung |
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Goo Bon-im as Mrs. Jung |
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Lee Jun-hyeok as Policeman |
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Soel Oh-shin as Thug 1 (uncredited) |
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Han Min-hik as Thug 2 (uncredited) |
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Chuay Kwong-lak as Thug 3 (uncredited) |
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Sung Du-hyung as Man in Black Suit 1 (uncredited) |
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Cha Jong-ho as Man in Black Suit 2 (uncredited) |
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서동수 as Army Colonel (uncredited) |
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Jung In-gum as (uncredited) |
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Lee In-ho as (uncredited) |
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O Yeong-seok as Policeman 2 (uncredited) |
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Ku Lu-han as (uncredited) |
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Kim Chul-jun as Construction Worker at Market 1 (uncredited) |
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Park Young-shik as Construction Worker at Market 2 (uncredited) |
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Kim Seung-hun as Public Official (uncredited) |
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구교환 as Drunk Man (uncredited) |
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김은숙 as Military Chief (uncredited) |
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Hong Sung-ki as Acupuncturist (uncredited) |
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Hung Hi-kwon as Hospital Doctor (uncredited) |
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이민웅 as Dr. Kang's Assistant (uncredited) |
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남정희 as Dong-suk's Grandmother (uncredited) |
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안도규 as Dong-suk (uncredited) |
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Kim Hae-eun as Woman Renting Mr. Jung's Room (uncredited) |
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Lee Sung-ju as Sun-yi's Son (uncredited) |
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Jang seo-yi as Sun-yi's Daughter-in-Law (uncredited) |
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Jo Jae-yun as Sun-yi's Grandson (uncredited) |
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김종구 as Sun-yi's Father (uncredited) |
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Shin Yeong-cheol as Eun-ju's Boyfriend (uncredited) |
| Lighting | 유석문 | Lighting Artist |
| Visual Effects | 장성호 | Visual Effects Supervisor |
| Editing | 김형석 | Digital Colorist |
| Camera | Choi Sang-muk | Director of Photography |
| Camera | Jang Jong-kyung | Camera Operator |
| Visual Effects | Park Yeong-su | Visual Effects |
| Visual Effects | Jang Seong-ho | Visual Effects |
| Art | Shin Seung-Hoon | Set Decoration |
| Lighting | Lee Sung-jae | Lighting Director |
| Writing | 조성희 | Writer |
| Directing | 조성희 | Director |
| Costume & Make-Up | 곽정애 | Costume Design |
| Sound | Shim Hyun-jung | Music |
| Production | 김보라 | Production Supervisor |
| Editing | Nam Na-young | Editor |
| Production | Kim Su-jin | Producer |
| Production | O Yeong-seok | Producer |
| Sound | 공태원 | Sound Supervisor |
| Production | Park Cheol-su | Executive Producer |
| Production | Yun In-beom | Producer |
| Art | 남성주 | Set Decoration |
| Production | Son Moon-sung | Production Manager |
| Production | Kim Hyun-kyu | Line Producer |
| Visual Effects | 박철용 | Special Effects Supervisor |
| Sound | Lee Jong-ho | Sound Recordist |
| Directing | Han Gyeong-hoon | Assistant Director |
| Art | 유지은 | Art Direction |
