While You Were Sleeping (2011 TV series)

While You Were Sleeping is a 2011 South Korean television series starring Lee Chang-hoon, Choi Won-young, Oh Yoon-ah and Lee Young-eun. The daily drama aired on SBS on Mondays to Fridays at 19:15 from May 16 to November 9, 2011 for 120 episodes.

Plot
Oh Shin-young (Lee Young-eun) is a hospital cafeteria nutritionist with a bright personality, who is happily married to Yoon Min-joon (Choi Won-young), who works in the sales department of a food company. But while giving birth, Shin-young falls into a vegetative state induced by the hospital's chief obstetrician Go Hyun-sung (Oh Yoon-ah). Hyun-sung is Min-joon's ex-girlfriend who is still in love with him, despite being married to Chae Hyuk-jin (Lee Chang-hoon), the director of a food company and Min-joon's boss. When Hyuk-jin learns of his wife's betrayal, he plans his revenge.

Cast

 * Main characters
 * Lee Chang-hoon as Chae Hyuk-jin
 * Choi Won-young as Yoon Min-joon
 * Oh Yoon-ah as Go Hyun-sung
 * Lee Young-eun as Oh Shin-young


 * Hyuk-jin's family
 * Jung Dong-hwan as Chae Dae-pil
 * Park Joon-geum as Mrs. Jang
 * Baek Min-hyun as Chae Woo-jin
 * Kim Jin-woo as Chae Hwan-hee


 * Min-joon's family
 * Kim Ha-kyun as Yoon Hwang-goo
 * Song Ok-sook as Na Pil-boon
 * Lee Sung-yeol as Yoon So-joon


 * Hyun-sung's family
 * Kim Hak-chul as Go Kyung-ho
 * Ahn Hae-sook as Lee Hye-ja


 * Shin-young's family
 * Kang Ye-sol as Oh Shin-hye
 * Lee Duk-hee as Shin Sook-hee


 * Extended cast
 * Ahn Ji-hyun as Maeng Hyun-joo
 * Min Joon-hyun as Chae Dae-pil's secretary
 * Lee Bum-hak as Bum-goo
 * Park Woo-chun