Sharp () is a Korean drama that aired from November 29, 2003, to February 25, 2007, on KBS2. Series overview Season 1 First aired : November 29, 2003 Last aired : February 27, 2005 Writers : Hong Jin-ah, Hong Ja-ram, Kwon Ki-kyung Cast Go Ara as Lee Ok-rim Seo Hyun-seok as Jang Wook Uhm Hong-sik as Yoo Ah-in Lee Eun-sung as Seo Jung-min Hyun Jung-eun as Lee Yoon-jung Kim Si-hoo as Lee Soon-shin Kim Jung-min as Park Se-ri Joo Bo-bi Oh Yeon-seo as Lee Ye-rim (Ok-rim's sister) Park Hoon-jung as Lee Ha-rim (Ok-rim's brother) Kang Seok-woo as Lee Sang-heum (Ok-rim's father) Lee Eung-kyung as Kim Sung-hee (Ok-rim's mother) Kwak Ji-min as Kang Dong-hee Kim Ha-kyoon as Kim Jung-sik Kim Ye-ryeong as Wook's mother Kim Hye-ok as Se-ri's mother Lee Min-ho as Jin-ho Kim Hee-jung as Lee Yu-ri (episode 36–37) Oh Soo-min as Jang Mi-yeon (episode 20) Heo Yi-jae as young Gong Yeon-hee (episode 42) Ryu Deok-hwan as Hwang Tae-min (episode 9) Hahm Eun-jung Ye-rim's friend (episode 5) Choo Ja-hyun as Narration Season 2 First aired : March 6, 2005 Last aired : February 26, 2006 Writers : Park Sun-ja, Kwon Ki-kyung, Noh Yoo-kyung Cast Go Ara as Lee Ok-rim Kim Ki-bum as Joo Yeo-myeong Lee Eun-sung as Seo Jung-min Kim Hee-chul as Baek Jin-woo Kim Hyun-joo as Lee Eun-young Ahn Nae-sang as Choi Jong-beom Park Hyung-jae as Ye Seok-doo Park Hoon-jung as Lee Ha-rim (Ok-rim's brother) Kang Seok-woo as Lee Sang-heum (Ok-rim's father) Lee Eung-kyung as Kim Sung-hee (Ok-rim's mother) Jung Ji-ahn as Ha Eun-shim Season 3 First aired : March 5, 2006 Last aired : February 25, 2007 Writers : Yoon Ji-ryun, Park Sun-ja Cast Seo Jun-young as Park Yi-joon Jung Da-ya as Joo Shi-eun Seo Min-woo as Kong Yun Jang Ah-young as Jang Ah-young Kim Dae-sung as Lee Han-byeol Yeo Min-joo as Na Hae-mi Bae Geu-rin as Bae Geu-rin Jung Eun-woo as Uhm Sung-min Ahn Yong-joon as Bae Sung-jun Ahn Nae-sang as Choi Sung-beom Lee Won-jong as Park Jam-bong (Yi-joon's father) Kim Eul-dong as Han Jung-hee References External links Korean-language television shows 2003 South Korean television series debuts 2007 South Korean television series endings Korean Broadcasting System television dramas South Korean teen dramas