Mr. Baek (16 Episodes)

Shin Ha Kyun as Choi Go Bong/Choi Shin Hyung
Jang Na Ra as Eun Ha Soo
Lee Joon as Choi Dae Han
Park Ye Jin as Hong Ji Yoon
Jung Suk Won as Jung Yi Goon

http://en.wikipedia.org/wiki/Mr._Baek

Cantabile Tomorrow (16 Episodes)

Joo Won as Cha Yoo Jin
Shim Eun Kyung as Seol Nae Il
Park Bo Gum as Lee Yoon Hoo
Bae Min Jung as Jung Shi Won
Go Kyung Pyo as Yoo Il Rak
Min Do Hee as Choi Min Hee

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

It's Okay, That's Love (16 Episodes)

Zo In-sung as Jang Jae Yeol
Gong Hyo-jin as Ji Hae Soo

http://en.wikipedia.org/wiki/It's_Okay,_That's_Love

Fated To Love You (20 Episodes)

Jang Hyuk as Lee Gun
Jang Na Ra as Kim Mi Young
Choi Jin Hyuk as Daniel Pitt
Wang Ji Won as Kang Se Ra

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

Marriage, Not Dating (16 Episodes)

Yeon Woo Jin as Gong Gi Tae
Han Groo as Joo Jang Mi
Jeong Jin Woon as Han Yeo Reum
Han Sun Hwa as Kang Se Ah
Heo Jung Min as Lee Hong Dong
Yoon So Hee as Nam Hyun Hee

http://en.wikipedia.org/wiki/Marriage,_Not_Dating

Hotel King (32 Episodes)

Lee Dong Wook as Cha Jae Wan
Lee Da Hae as Ah Mo Ne
Im SeuLong as Sun Woo Hyun

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

Wonderful Days (50 Episodes)

Lee Seo Jin as Kang Dong Seok
Kim Hee Sun as Cha Hae Won
Ok Taecyeon as Kang Dong Hee

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

Star's Lover (20 Episodes)

Choi Ji Woo as Lee Ma Ri
Yoo Ji Tae as Kim Chul Soo
Lee Ki Woo as Jung Woo Jin
Cha Ye Ryun as Choi Eun Young

http://en.wikipedia.org/wiki/Star's_Lover