wife Han Da-min as Queen Gonghye Kim Hee-jung as young Lady Han Han So-jung as Court Lady Um Yoon Hye-kyung as Royal Consort Eom Gwi-in Ahn Gil-kang as Kae Do-chi Kim Jung-min as Beo Deul-yi Jo Jung-eun as young Deul-yi Kim Da-hyun as Choi Ja-chi Yoo Tae-woong as young Ja-chi Kang In-hyung as Moon So-woon Jeon Ha-eun as young So-woon Kim Ha-kyun as Jang Soon-moo Kim Myung-soo as Yang Sung-yoon Han Jung-soo as Do Geum-pyo Kim So-hyun as Lady Jung, Ji-gyeom's wife Kim Byung-se as King Sejo Yoo Dong-hyuk as King Yejong Kim Jong-gyul as Han Myung-hoe Kim Young-joon as Hong Gwi-nam Shin Tae-hoon as young Gwi-nam Kang Jae as Kim Ja-won Choi Soo-han as young Ja-won Lee Gun-joo as Song Gye-nam Maeung Chang-min as young Gye-nam Lee Sang-won as Shim Ki-soo Park Ha-sun as Queen Shin, Yeonsan's wife Kim Hyuk as Park Deok-hu, So-hwa's first love Jung Eun-chan as Yoon Ki-hyun, So-hwa's older brother Ho Hyo-hoon as young Ki-hyun Lee Young-eun as palace maid Kim Yong-heon as Eom Nae-kwan Kim Byung-choon as Yang Sung-yeon Park Dong-bin as Goo Sung-gun Choi Ha-na as Hong Bi Lee Ji-oh as the Crown Prince, Yeonsan's son Jun Hyun-ah as Court Lady Kam-chul Oh Soo-min as Jang Nok-su Nam Hyun-joo as Han-soo's mother Jung Ki-sung as Jogeobi Song Young-gyu as Lee Ki Shin Soo-jung as Hoo Koong Seol Ji-yoon as Court Lady Kim Jung So-young Kang Soo-han Noh Young-hak as Grand Prince Jinseong Jun Tae-soo as Han Chi-geun Park Ji-hoon as eunuch Production Park Sang-min was originally cast as King Seongjong, but had to back out. He was replaced by Go Joo-won. Yeo Woon-kye was supposed to portray So-gwi but had to quit due to health reasons, even though she had already filmed a few episodes. Her replacement was Kim Soo-mi. Reportedly enraged because the scripts were routinely turned in late, resulting in exhaustion for the actors in the cast, Jeon In-hwa's husband Yoo Dong-geun assaulted two producers on set on December 29, 2007. He later apologized for the incident. Episode ratings The King and I performed moderately well, getting ratings in the 20%–25% range and ranking in the top 10. However, in late January 2008, due to competition from MBC's Yi San, ratings fell to the mid-tens, barely cracking the Top 20 in Korea. SBS first extended the episodes from the originally planned 50 to 67, then back to 61 because of bad