| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Kim Eun-sook | Crew | Writing | Writer | 16 |
 Baek Sang-Hoon | Crew | Directing | Director | 16 |
 Sunwoo Jung-a | Crew | Sound | Theme Song Performance | 16 |
 Zion.T | Crew | Sound | Theme Song Performance | 16 |
 Gaeko | Crew | Sound | Theme Song Performance | 16 |
 Wendy | Crew | Sound | Theme Song Performance | 16 |
 Hwang Chi-yeul | Crew | Sound | Theme Song Performance | 16 |
Jinnie Choi | Crew | Production | Executive Producer | 16 |
 Yu Je-won | Crew | Directing | Director | 16 |
 Kim Jong Wan | Crew | Sound | Theme Song Performance | 16 |
 Hwasa | Crew | Sound | Theme Song Performance | 16 |
 Paul Kim | Crew | Sound | Theme Song Performance | 16 |
 Zico | Crew | Sound | Theme Song Performance | 16 |
 Jung Jee-hyun | Crew | Directing | Director | 16 |
 Kim Jae-hwan | Crew | Sound | Theme Song Performance | 16 |
 Ha Sung-woon | Crew | Sound | Theme Song Performance | 16 |
 Gummy | Crew | Sound | Theme Song Performance | 16 |
Yoon Ha-lim | Crew | Production | Executive Producer | 16 |
 Lim Han-byul | Crew | Sound | Theme Song Performance | 16 |
Gae-mi | Crew | Sound | Music Director | 16 |
 Jeon Moo-song | Cast | Actor | Lee Jong-in / Prince Boo-young | 16 |
 Park Won-sang | Cast | Actor | Park Moon-shik | 16 |
 Lee Hwang-eui | Cast | Actor | Prime Minster's Adviser | 16 |
 Kim Yeong-ok | Cast | Actress | Noh Ok-nam | 16 |
 Kwon Yul | Cast | Actor | Lee Ho (the late emperor, Lee Gon's father) | 3 |
 Jeon Bae-soo | Cast | Actor | Jung Do-in | 16 |
 Jung Eun-chae | Cast | Actress | Goo Seo-ryung / Goo Eun-ah | 16 |
 Lee Hae-yeong | Cast | Actor | Yoo Kyung-moo | 16 |
 Lee Min-ho | Cast | Actor | Lee Gon | 16 |
 Kim Go-eun | Cast | Actress | Jung Tae-eul / Luna | 16 |
 Kang Ki-doong | Cast | Actor | Secretary Kim | 16 |
 Hwang Young-hee | Cast | Actress | Min Hwa-yun / Park Sook-jin | 16 |
 Woo Do-hwan | Cast | Actor | Jo Eun-sup / Jo-young | 16 |
 Tae In-ho | Cast | Actor | Choi Min Hwan | 2 |
 Kim Jung-young | Cast | Actress | Kim Sung-ae | 16 |
 Park So-jin | Cast | Actress | Jo Hae-in | 16 |
 Heo Dong-won | Cast | Actor | Detective Shim | 16 |
 Seo Jeong-yeon | Cast | Actress | Song Jung-hye | 16 |
 Kang Hong-suk | Cast | Actor | Jang Michael / Jang Mi-reuk | 16 |
 Baek Hyun-joo | Cast | Actress | Lee Gon's Secretary | 16 |
 Song Sang-eun | Cast | Actress | Kyung-ran | 16 |
 Kim Kyung-nam | Cast | Actor | Kang Shin-jae | 16 |
 Jung Hyeon-jun | Cast | Actor | Young Lee Gon / Lee Ji-hun | 16 |
 An Si-ha | Cast | Actress | Kim Hee-joo | 16 |
 Lee Hong-nae | Cast | Actor | Seok Ho-pil | 16 |
 Moon Woo-jin | Cast | Actor | Young Shin-jae / Kang Hyun-min | 16 |
 Shin Hyeon-jong | Cast | Actor | Lee Jung-hoon | 16 |
 Kim Yong-ji | Cast | Actress | Myung Na-ri / Myung Seung-ah | 16 |
 Lee Jung-jin | Cast | Actor | Lee Rim | 16 |
 Seo Woo-jin | Cast | Actor | Secretary Mo's son | 1 |
 Choi Woo-sung | Cast | Actor | Kim Ki-won | 16 |
 Kim Dong-gyun | Cast | Actor | Kang Sin Jae's father | 1 |
 Yoon Ju-man | Cast | Actor | Young Yoo Kyung-moo | 16 |
 Kim Gwi-seon | Cast | Actor | Park Mun-haeng | 1 |
 Hwang Se-on | Cast | Actress | Park In-young | 16 |
 Jang Hae-min | Cast | Actress | Prime Minster's Staff | 16 |
 Ryu Sung-rok | Cast | Actor | Kyu-bong | 16 |
 Noreen Joyce Guerra | Cast | Actress | Moon Seung-ih | 16 |
| Person | Type | Job | Role(s) | Episodes |
