유아인

Crown Prince Sado

Song Kang-ho

King Yeongjo

이효제

Young Jeongjo

소지섭

Adult King Jeongjo

문근영

Lady Hye Gyeong-gung

전혜진

Royal Consort Yeong-bin

김해숙

Queen In-won

박원상

Hong Bong-han

진지희

Princess Hwa-wan

서예지

Queen Jung-soon