Series Cast 28

1. 

   IU

   Go Hajin / Lady Hae Soo (20 Episodes)

2. 

   Lee Joon-gi

   Wang So (4th Prince) (20 Episodes)

3. 

   Kang Ha-neul

   Wang Wook (8th Prince) (20 Episodes)

4. 

   Hong Jong-hyun

   Wang Yo (3rd Prince) (20 Episodes)

5. 

   Baekhyun

   Wang Eun (10th Prince) (20 Episodes)

6. 

   Nam Joo-hyuk

   Wang Baeka (13th Prince) (20 Episodes)

7. 

   Kim Ji-soo

   Wang Jeong (14th Prince) (20 Episodes)

8. 

   Yoon Sun-woo

   Wang Won (9th Prince) (20 Episodes)

9. 

   Kim San-ho

   Wang Mu (Crown Prince / 1st Prince) (20 Episodes)

10. 

    Seohyun

    Princess Woohee (20 Episodes)

11. 

    Kang Han-na

    Princess Hwangbo Yeonhwa / Queen Daemok (20 Episodes)

12. 

    Jin Ki-joo

    Chaeryeong (20 Episodes)

13. 

    Z.Hera

    Park Soondeok (20 Episodes)

14. 

    Sung Dong-il

    General Park Soogyeong (20 Episodes)

15. 

    Kim Sung-kyun

    Choi Jimong / Homeless Man (20 Episodes)

16. 

    Jo Min-ki

    King Taejo (20 Episodes)

17. 

    Kim Kang-il

    Shincheon Kang (20 Episodes)

18. 

    Park Ji-young

    Queen Yoo / Queen Shinmyeong (20 Episodes)

19. 

    Park Jeong-hak

    Wang Shikryeom (20 Episodes)

20. 

    Woo Hee-jin

    Court Lady Oh Sooyeon (20 Episodes)

21. 

    Park Si-eun

    Lady Hae Myeong (20 Episodes)

22. 

    Jung Kyung-soon

    Queen Hwangbo / Queen Shinjeong (20 Episodes)

23. 

    Choi Byung-mo

    Park Younggyu (20 Episodes)

24. 

    Lee Ho-jung

    Aera (20 Episodes)

25. 

    Byeon Woo-seok

    Hajin's boyfriend (1 Episode)

26. 

    Jang Hae-min

    Soo's friend (1 Episode)

27. 

    Lee Chae-mi

    Wang Mu's daughter (1 Episode)

28. 

    Seo Eun-sol

    So & Soo's daughter (1 Episode)

Series Crew 9