Royal Secret Agent During the Joseon Dynasty, the Secret Royal Inspectors are the eyes and ears of the king. They travel the provinces undercover and listen to the plight of the common people, investigating abuses and corruption of government officials. Details Casts Videos Galleries Posters Season Lists Title Royal Secret Agent Genres Comedy Mystery Drama First Air Date 2020-12-21 Last Air Date 2021-02-09 Episode Runtime 01 Hours 00 Minutes Total Season(s) 1 Total Episode(s) on All Seasons 16 Runtime 60 Production Companies iWill Media L... Sung Yi-gyum... Kwon Na-ra... Hong Da-in... Lee Yi-kyung... Park Chun-sam... Lee Tae-hwan... Sung Yi-beom... Jo Soo-min... Kang Soon-ae... Ahn Nae-sang... Jang Tae-Seung... Choi Jong-won... Kang In-Chung... Son Byung-ho... Kim Byeong-Geun... Chae Dong-hyeon... Kim Man-Hee... Park Joo-Hyung... Seo Yong... Kim Ju-Young... Sa-Wol... Shin Ji-hoon... Choi Do-Gwan... Han Eun-seong... Kang Jong-Gil... Lee Sang-un... ... [티저] 혼란의 시대 조선, 난세는 끝났다! "암행어사 출두요" [암행어사] (Trailer) Original Size (1920x1080) Original Size (1280x720) Original Size (1500x845) Original Size (1500x845) Original Size (1360x2040) Original Size (1360x2040) Original Size (900x1328) Original Size (1080x1593) Original Size (1044x1536) Original Size (800x1200) Season 1 16 Episode(s) 2020-12-21