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Son Ye-jin as Yoo Mi-ho / Lee Ji-ah |
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Han Suk-kyu as Han Dong-soo |
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Go Soo as Kim Yo-han |
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이민정 as Lee Si-yeong |
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Park Seong-woong as Cha Seung-jo |
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차화연 as Seo Hae-yeong |
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정진 as Park Tae-ho |
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Im Ji-kyu as Yak-tong |
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방중현 as Jo Min-woo |
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손지나 as Park Mi-yeon |
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주아름 as Lee Ji-ah (young) |
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Soo-jung Ye as Aunt |
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Han Ye-won as Na-hyeon |
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Kim Ji-hyeon as Hong Yun-mi (uncredited) |
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Jo Kyung-sook as Yang Mi-sook (uncredited) |
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최진호 as Kim Si-hoo (uncredited) |
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정인기 as Kang Jae-doo (uncredited) |
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서동수 as Crime lab investigation team leader (uncredited) |
| Art | 박재완 | Props |
| Writing | Park Shin-woo | Writer |
| Writing | 박연선 | Writer |
| Directing | Park Shin-woo | Director |
| Sound | 조영욱 | Music |
| Crew | Kim Byung-oh | Stunts |
| Writing | 오상호 | Adaptation |
| Directing | Eo Jeong-il | Assistant Director |
| Production | Lim Ji-young | Producer |
| Production | An Eun-mi | Co-Producer |
| Camera | Lee Chang-jae | Director of Photography |
| Production | Jeon Min | Line Producer |
| Lighting | Chu In-sik | Lighting Director |
| Costume & Make-Up | Choi Yeong-sim | Makeup & Hair |
| Art | Song Hye-jin | Production Design |
| Art | Oh Jin-seok | Props |
| Production | 강우석 | Executive Producer |
| Writing | 東野圭吾 | Novel |
