You're All Surrounded (20 Episodes)

Lee Seung Gi as Eun Dae Gu/Kim Ji Young
Cha Seung Won as Seo Pan Seok
Go Ara as Eo Soo Seun
Ahn Jae Hyun as Park Tae Il
Park Jung Min as Ji Gook
Oh Yoon Ah as Kim Sa Kyung
Sung Ji Roo as Lee Eung Do

http://en.wikipedia.org/wiki/You're_All_Surrounded

Good Doctor (20 Episodes)

Joo Won as Park Shi On
Moon Chae Won as Cha Yoon Seo
Joo Sang Wook as Kim Do Han
Kim Min Seo as Yoo Chae Kyung

http://en.wikipedia.org/wiki/Good_Doctor

Medical Top Team (20 Episodes)

Kwon Sang Woo as Park Tae Shin
Jung Ryeo Won as Seo Joo Young
Ju Ji Hoon as Han Seung Jae
Oh Yeon Seo as Choi Ah Jin
Choi Min Ho as Kim Seong Woo

http://en.wikipedia.org/wiki/Medical_Top_Team