Main •
Shin Hye-sun as Kim So-yong,
Queen Cheorin • as young Kim So-yong :The
Queen of
Joseon who has the soul of a man in her body. •
Kim Jung-hyun as Yi Won-beom,
King Cheoljong •
Kim Kang-hoon as young Yi Won-beom :The 25th King of
Joseon.
Supporting People around Queen Cheorin •
Cha Chung-hwa as Court Lady Choi :A
sanggung and Queen Cheorin's devoted
lady-in-waiting. • Chae Seo-eun as Hong-yeon :Queen Cheorin's loyal maid who served her since they were children.
People around King Cheoljong •
Yoo Min-kyu as
Prince Yeongpyeong :Cheoljong's older half-brother who serves as his royal guard. • as Hong Du-il / Hong Byeol-gam :Cheoljong's friend from his days on
Ganghwa Island.
Andong Kim clan •
Bae Jong-ok as Grand Royal Queen Dowager Kim (
Queen Sunwon) :The late
King Sunjo's wife, who wields the true power in the country and, thus, relegates Cheoljong to being just a figurehead. •
Kim Tae-woo as
Kim Jwa-geun :Queen Sunwon's younger brother and an extremely ambitious man. •
Na In-woo as Kim Byeong-in :The adopted son of Kim Jwa-geun, thus making him Queen Sunwon's nephew and a cousin to Queen Cheorin. •
Jeon Bae-soo as
Kim Mun-geun :Queen Cheorin's father. •
Yoo Young-jae as Kim Hwan :A bright young man who spent his days wandering around the palace, Hong Byeol-gam's friend and Kim Byeong-in's cousin. • as
Chief State Councillor Kim Byung-hak • as
Left State Councillor Kim Seok-geun • as
Minister of Military Affairs Kim Chang-hyuk
Pungyang Jo clan •
Seol In-ah as Jo Hwa-jin, Royal Noble Consort Ui (
Jo Gwi-in) :Cheoljong's concubine and first love. •
Jo Yeon-hee as Royal Queen Dowager Jo (
Queen Sinjeong) :The late
Crown Prince Hyomyeong's only wife. •
Right State Councillor Jo Man-hong • as
Minister of Personnel Jo Deok-mun • as
Royal Secretary Jo Dae-su :Jo Hwa-jin's father.
People in the Blue House •
Choi Jin-hyuk as Jang Bong-hwan :An arrogant playboy and
Blue House chef who is caught in a conspiracy and, after a near-death experience, he wakes up in Queen Cheorin's body. • as Director Han Pyo-jin / Han Shim-ong • as Bu Seung-min
People in the Royal Kitchen •
Kim In-kwon as Royal Chef Man-bok :A cuisine specialist who doesn't get along with Queen Cheorin. • Kang Chae-won as Dam-hyang :A young court lady who is close to Queen Cheorin.
Court Ladies • Kim Ju-young as Oh-wol :Jo Hwa-jin's maid. • as Court Lady Kang : Queen Sinjeong's lady-in-waiting. • Seo Hye-ryeong as a court lady • Ahn Ju-ri as a court lady
People in the Royal Palace •
Kang Da-hyun as Hang Sim-hyang • as royal physician • as Head Eunuch • as Eunuch Kim • Choi Hwan-yi as Eunuch Choi • as Sal-su
Special appearances • Ha Min as Physician Park (Ep. 1) • Seo Dong-suk as detective (Ep. 1) •
Kwon Eun-soo as court lady (Ep. 2) • Kim Ka-eun as a young court lady (Ep. 2) • Lee Seung-jin as royal guard (Ep. 2) • Yoon Jung-ro as royal guard (Ep. 2) • as general store owner (Ep. 2–3) • Oh Ji-young as court lady (Ep. 3) • Na Mi-hee as court lady (Ep. 3) • Kim Yong-jin as eunuch (Ep. 3) • as food palanquin bearer (Ep. 6) • Koo Ja-keon as food palanquin bearer (Ep. 6) • Kim Seung-wan as food palanquin bearer (Ep. 6) • Kim Nan-hee as fortune teller (Ep. 6) ==Production==