Pemeran Rookie Historian Goo Hae Ryung

Shin Sae Kyeong (신세경)

as Goo Hae Ryung / Hui Yeon

Pemeran Utama

Cha Eun Woo (차은우)

as Prince Yi Rim / Maehwa / Prince Dowon

Pemeran Utama

Park Ki Woong

as Crown Prince Yi Jin

Pemeran Utama

Lee Ji Hoon (이지훈)

as Min U Won

Pemeran Utama

Park Ji Hyun (박지현)

as Song Sa Hee [Historian]

Pemeran Pembantu

Kim Min Sang

as Lee Tae [King]

Pemeran Pembantu

Choi Duk Moon

as Min Ik Pyung [Second state councillor]

Pemeran Pembantu

Jun Ik Ryoung

as Mo Hwa [Female physician]

Pemeran Pembantu

Sung Ji Ru

as Heo Sam Bo [Eunuch]

Pemeran Pembantu

Lee Ye Rim

as Oh Eun Im [Female historian]

Pemeran Pembantu

Jang Yu Bin

as Heo Ah Ran [Female historian]

Pemeran Pembantu

Heo Jung Do

as Yang Si Haeng [Royal historian]

Pemeran Pembantu

Nam Tae Woo

as Son Gil Seung [Royal historian]

Pemeran Pembantu

Kang Hoon (강훈)

as Hyun Kyung Mook [Royal historian]

Pemeran Pembantu

Jin Geon U

as Sung Seo Kwon [Royal historian]

Pemeran Pembantu

Oh Hee Joon

as Ahn Hong Ik [Royal historian]

Pemeran Pembantu

Lee Jung Ha (이정하)

as Kim Chi Kook [Royal historian]

Pemeran Pembantu

Yoon Jung Sub

as Hwang Jang Gun [Royal historian]

Pemeran Pembantu

Ryu Tae Ho

as Song Jae Chun [Senior fifth rank officer]

Pemeran Pembantu

Cha Kwang Soo

as Jo Seung Kwang [Vice chancellor]

Pemeran Pembantu

Park Young Soo

as Mr. Kim [Bookseller]

Pemeran Pembantu

Jung Chan

as [Chancellor]

Pemeran Pembantu

Kwon Hong Seok

as [Royal advisor]

Pemeran Pembantu

Kim Kwi Seon

as [Second vice-premier]

Pemeran Pembantu

Yoo Se Rye

as Court Lady Choe

Pemeran Pembantu

Yoon Jong Won

as [Palace guard]

Pemeran Pembantu

Nam Jung Woo

as Jegal Tak [Official, Royal Secretariat]

Pemeran Pembantu

Jo Jae Wan

as [Chief Royal Secretary]

Pemeran Pembantu

Lee Kun Goo

as Yi Baek

Pemeran Pembantu

So Hee Jung

as [Noble woman] (Ep. 1)

Bintang Tamu

Gil Jung Woo

as Jang Su [Enslaved boy] (Ep. 1-2)

Bintang Tamu

Lee Jong Hyuk

as [Master] (Ep. 1-2)

Bintang Tamu

Jo Jae Yun (조재윤)

as Kim Chuk Jeom [Investigation Bureau officer] (Ep. 3)

Bintang Tamu

In Sung Ho

as [Palace gate sentry] (Ep. 3)

Bintang Tamu

Jo Si Yeon

as [Fearful of solar eclipse] (Ep. 5)

Bintang Tamu

Kim Yong Jin

as Officer Park [Payday clerk] (Ep. 6)

Bintang Tamu

Ahn Soo Ho

as Clerk Park [Upset bribery clerk] (Ep. 6)

Bintang Tamu

Song Chang Gyu

as [Peddler] (Ep. 7)

Bintang Tamu

Choi Gyo Shik

as [Peddler] (Ep. 7)

Bintang Tamu

Kim Dan Woo

as [Mother with smallpox] (Ep. 7-8)

Bintang Tamu

Park Yong

as [Royal advisor] (Ep. 8)

Bintang Tamu

Ha Roo Bi

as [Smallpox vaccine recipient] (Ep. 8)

Bintang Tamu

Ri Min

as Jang Song Hyung [Governor of Pyongan province] (Ep. 13-14)

Bintang Tamu

Kang Suk Won

as [Chief sentry] (Ep. 14)

Bintang Tamu

Lee Do Yeop

as Sim Geom Yeol [Hermit historian] (Ep. 18)

Bintang Tamu

Na Hyun Woo

as [Special appearance] (Ep. 18)

Bintang Tamu

Lee Do Gyeom

as [Official who bribed Lord Song] (Ep. 19)

Bintang Tamu

Fabien

as Jean Baptiste Barthélemy [Foreigner Intruder] (Ep. 24-28, 36)

Bintang Tamu

Kim Myung Soo

as So Baek Sun [Commander of the Military Training Corps] (Ep. 31-32, 35, 38-39)

Bintang Tamu

Jung Se Hyun

as Bi Ja

Bintang Tamu

Kim Ji An

as Yeo Sik

Bintang Tamu

Jo Min Ah

as Mo Hwa [Young]

Bintang Tamu

Uhm Ji Sung

as Goo Jae Kyung [Young]

Bintang Tamu

Jung Yun Ha

as Hae Ryung / Hui Yeon [Young]

Bintang Tamu

Lee Doo Suk

as Kim Il Mok [Royal historian]

Bintang Tamu

Kim Seung Hyun

as [Monk]

Bintang Tamu

Park Sang Hyun

as [Gisaeng]

Bintang Tamu

Jeon Jeong Il

as [Husband]

Bintang Tamu

Seo Dong Oh

as [Executioner]

Bintang Tamu

Hwang Hyun Jeong

as [Young bride]

Bintang Tamu

Park Jung In

as [Noblewoman]

Bintang Tamu

Yong Jin

as [Government clerk]

Bintang Tamu

Seo Hye Jin

Bintang Tamu

Jo Joon

Bintang Tamu

Jung Jin

Bintang Tamu

Kim Jin Ok

as [Maid]

Bintang Tamu

Kil Sung Joo

as [Woman]

Bintang Tamu

Kang Il Soo

Sutradara

Han Hyeon Hui

Sutradara

Lee Pil Ho

Music Editor

Kim Ho Soo

Screenwriter