Name	Known for
Yoon Eun-hye Chae-kyung Shin (as Yun Eun-hye) Chae-kyung Shin (as Yun Eun-hye) See fewer	The 1st Shop of Coffee Prince (2007)
Ju Ji-hoon Crown Prince Lee Shin Crown Prince Lee Shin See fewer	The Spy Gone North (2018)
Song Ji-hyo Min Hyo-rin Min Hyo-rin See fewer	New World (2013)
Choi Bool-am Emperor Seongjo Emperor Seongjo See fewer	The Last Witness (1980)
Park Chan-hwan Emperor Hyun (Shin's father) Emperor Hyun (Shin's father) See fewer	The King and the Queen (1998)
Danji Yoon Hee-Sung Yoon Hee-Sung See fewer	The Man Who Can't Get Married (2009)
Kim Hye-ja Queen Mother (Yul and Shin's grandmother) Queen Mother (Yul and Shin's grandmother) See fewer	Mother (2009)
Shim Hye-jin Lady Hwa-yong (Yul's mother) Lady Hwa-yong (Yul's mother) See fewer	Marriage Story (1992)
Kim Jeong-hoon Prince Yul Prince Yul See fewer	Pacific Rim: Uprising (2018)
Kim Kwang-kyu Teacher at the performing arts school Teacher at the performing arts school See fewer	I Hear Your Voice (2013)
Won Mi-won Court lady Seo Court lady Seo See fewer	Lady Vengeance (2005)
Kang Nam-kil Chae-kyung's father Chae-kyung's father See fewer	Jejoongwon (2010)
Lydia Park Hyo Rin's ballet teacher Hyo Rin's ballet teacher See fewer	Hansel and Gretel (2007)
Kim Sang-jung Crown Prince Hyo Yeol (Yul's father) (as Sang Jung Kim) Crown Prince Hyo Yeol (Yul's father) (as Sang Jung Kim) See fewer	The Rebel Hong Gil Dong (2017)
Choi Sung-Joon Kang In Kang In See fewer	Casa Amor: Exclusive for Ladies (2015)
Sung-Mo Um Ryu Hwan Ryu Hwan See fewer	Tae Guk Gi: The Brotherhood of War (2004)
Im Ye-jin Chae-kyung's mother Chae-kyung's mother See fewer	Secret Love (2010)
Yun Yoo-sun Queen Min (Shin's mother) Queen Min (Shin's mother) See fewer	The Story of Two Women (1994)
Lee Yoon-ji Princess Hye-myung (Shin's sister) Princess Hye-myung (Shin's sister) See fewer	Dream High (2011)