IU

Go Hajin / Lady Hae Soo

Lee Joon-gi

Wang So (4th Prince)

Kang Ha-neul

Wang Wook (8th Prince)

Hong Jong-hyun

Wang Yo (3rd Prince)

Baekhyun

Wang Eun (10th Prince)

Nam Joo-hyuk

Wang Baeka (13th Prince)

Kim Ji-soo

Wang Jeong (14th Prince)

Yoon Sun-woo

Wang Won (9th Prince)

Kim San-ho

Wang Mu (Crown Prince / 1st Prince)

Seohyun

Princess Woohee

Kang Hanna

Princess Hwangbo Yeonhwa / Queen Daemok

Jin Ki-joo

Chaeryeong