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유아인 as Crown Prince Sado |
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송강호 as King Yeongjo |
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이효제 as Young Jeongjo |
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소지섭 as Adult King Jeongjo |
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문근영 as Lady Hye Gyeong-gung |
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전혜진 as Royal Consort Yeong-bin |
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Kim Hae-sook as Queen In-won |
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박원상 as Hong Bong-han |
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진지희 as Princess Hwa-wan |
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서예지 as Queen Jung-soon |
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박소담 as Lady Moon |
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Lee Kwang-il as Min Baek-sang |
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엄지성 as Young Sado |
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신수연 as Young Hye Gyeong-gung |
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Kim Min-gyu as Kim Gwi-joo (uncredited) |
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정해균 as Blind Shaman |
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손우혁 as Hong Nak-in |
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남열 as Jeongjo's Eunuch |
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나주호 as 12 Byeolgam |
| Art | Kim Yun-suk | Props |
| Writing | Lee Yoon-ho | Storyboard |
| Visual Effects | Lee Byeong-ju | VFX Artist |
| Writing | 오승현 | Writer |
| Writing | Lee Song-won | Writer |
| Writing | 조철현 | Writer |
| Lighting | Hong Seung-chul | Lighting Director |
| Sound | 정진욱 | Production Sound Mixer |
| Costume & Make-Up | Yoon Hwang-jik | Special Effects Makeup Artist |
| Directing | 이준익 | Director |
| Sound | 김미미 | Boom Operator |
| Camera | Jeon Young-wook | Still Photographer |
| Camera | Ji Sung-yong | Key Grip |
| Production | 오승현 | Producer |
| Sound | 방준석 | Original Music Composer |
| Editing | 김재범 | Editor |
| Editing | 김상범 | Editor |
| Sound | 최태영 | Sound |
| Art | 강승용 | Production Design |
| Camera | 김태경 | Director of Photography |
| Sound | Gang Hye-yeong | Sound Designer |
| Camera | 박성주 | Camera Operator |
| Costume & Make-Up | 조태희 | Makeup & Hair |
| Production | Seong Chang-yeon | Producer |
| Costume & Make-Up | Lee Ji-yeon | Costume Design |
| Costume & Make-Up | 심현섭 | Costume Design |
| Sound | 김병인 | ADR Recordist |
| Visual Effects | Jung Hwang-soo | VFX Supervisor |
| Visual Effects | 박대훈 | Special Effects Supervisor |
| Editing | 박진영 | Digital Intermediate |
| Directing | 배태종 | Assistant Director |
| Art | 김양곤 | Set Decoration |
| Crew | 김신웅 | Martial Arts Choreographer |
