| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Kim Eun-sook | Crew | Writing | Writer, Creator | 24 |
 Kim Yoon-ah | Crew | Sound | Theme Song Performance | 24 |
 Kim Se-jeong | Crew | Sound | Theme Song Performance | 24 |
 Lee Eung-bok | Crew | Directing | Director, Creator | 24 |
 Jung Jae-il | Crew | Sound | Original Music Composer | 24 |
 Park Hyo-shin | Crew | Sound | Theme Song Performance | 24 |
 Hwang Chi-yeul | Crew | Sound | Theme Song Performance | 24 |
 Jinnie Choi | Crew | Production | Executive Producer | 24 |
 Lee Soo-hyun | Crew | Sound | Theme Song Performance | 24 |
 Baek Ji-young | Crew | Sound | Theme Song Performance | 24 |
 Jung Jee-hyun | Crew | Directing | Co-Director | 24 |
Yoon Ha-lim | Crew | Production | Executive Producer | 24 |
 Jang Young-woo | Crew | Directing | Co-Director | 24 |
 Nam Hye-seung | Crew | Sound | Original Music Composer | 24 |
Kim So-yeon | Crew | Art | Art Designer | 24 |
Lee Yong seop | Crew | Visual Effects | VFX Supervisor | 24 |
 Lee Byung-hun | Cast | Actor | Eugene Choi / Choi Yu-jin | 24 |
 David Lee McInnis | Cast | Actor | Kyle Moore | 24 |
 Kim Eui-sung | Cast | Actor | Lee Wan-ik | 24 |
 Hakuryu | Cast | Actor | Head of Mushinwhe | 24 |
 Lee Ho-jae | Cast | Actor | Go Sa-hong | 24 |
 Choi Jong-won | Cast | Actor | Heungseon Daewongun | 24 |
 Kim Min-jung | Cast | Actress | Kudo Hina | 24 |
 Kim Byung-chul | Cast | Actor | Il-sik | 24 |
 Jin Goo | Cast | Actor | Ae-Shin's father | 1 |
 Kim Na-woon | Cast | Actress | Madame Jo | 24 |
 Kang Shin-il | Cast | Actor | Lee Jeong-mun | 24 |
 Shin Jung-keun | Cast | Actor | Servant | 24 |
 Choi Jin-ho | Cast | Actor | Lee Se-hun | 24 |
 Park Jeong-min | Cast | Actor | Ahn Chang-ho | 24 |
 Choi Moo-seong | Cast | Actor | Jang Seung-gu | 24 |
 Lee Seung-joon | Cast | Actor | King Gojong | 24 |
 Kim Tae-ri | Cast | Actress | Go Ae-shin | 24 |
 Bae Jung-nam | Cast | Actor | Chun-sik | 24 |
 Kim Ji-won | Cast | Actress | Ae-Shin's mother | 1 |
 Jo Woo-jin | Cast | Actor | Im Gwan-su | 24 |
 Byun Yo-han | Cast | Actor | Kim Hui-seong | 24 |
 Lim Se-mi | Cast | Actress | Dong-Mae's mother | 1 |
 Oh Ah-yeon | Cast | Actress | So-ah | 24 |
 Lee Jung-eun | Cast | Actress | Haman-daek | 24 |
 Kim Min-jae | Cast | Actor | Do-mi (teen) | 1 |
 Seong Yu-bin | Cast | Actor | Young Jang Seung-gu | 24 |
 Jang Dong-yoon | Cast | Actor | Jun-young | 24 |
 Kim Kap-soo | Cast | Actor | Hwang Eun-san | 24 |
 Kim Eung-soo | Cast | Actor | Hui-seong's Grandfather | 24 |
 Yoo Yeon-seok | Cast | Actor | Gu Dong-mae | 24 |
 Kim Hye-eun | Cast | Actress | Yoon Ho-sun | 24 |
 Park Ah-in | Cast | Actress | Go Ae-sun | 24 |
 Kim See-eun | Cast | Actress | Gwi-dan | 24 |
 Heo Jung-eun | Cast | Actress | Young Go Ae-shin | 24 |
 Jeon Jin-seo | Cast | Actor | Teenage Eugene Choi | 24 |
 Ji Seung-hyun | Cast | Actor | Song Young | 1 |
 Nam Chang-hee | Cast | Actor | Shin Jong-min | 24 |
 Kim Nam-hee | Cast | Actor | Takashi Mori | 24 |
 Kim In-woo | Cast | Actor | Hirobumi Ito | 24 |
 Lee Jung-hyun | Cast | Actor | Tsuda | 24 |
 Lee Xia | Cast | Actress | Eugene's mother | 1 |
 Park Ji-yeon | Cast | Actress | Yun Ho-sun (young) | 1 |
 Seo Yu-jeong | Cast | Actress | Hong-pa | 24 |
 Kim Kang-hoon | Cast | Actor | Young Eugene Choi | 24 |
 Ariane Desgagnés-Leclerc | Cast | Stella | 24 | |
 Kim Yong-ji | Cast | Actress | Hotaru | 24 |
 John D. Michaels | Cast | Actor | US Minister to Japanese Legation | 1 |
 Lim Cheol-soo | Cast | Actor | Jeon Seung-jae | 24 |
 Yoon Ju-man | Cast | Actor | Yu-jo | 24 |
 Amy Aleha | Cast | Actress | Mrs. Logan | 24 |
 Bret Allan Lindquist | Cast | Actor | 24 | |
| Person | Type | Job | Role(s) | Episodes |
