Official website: https://program.kbs.co.kr/2tv/drama/7days
Park Min-young
Shin Chae-Kyung / Queen Dangyeong
Yeon Woo-jin
Lee Yeok / King Jungjong
Lee Dong-gun
Lee Yoong / King Yeonsangun
Jang Hyun-sung
Shin Soo-Geun
Kang Shin-il
Im Sa-Hong
Son Eun-seo
Jang Nok-Soo
Song Ji-in
Queen Shin
Kim Jung-young
Lady Kwon
Do Ji-won
Dowager Queen Jasun
Hwang Chan-seong
Seo No