Director :Sin Hyeon-chang
Writer :Bae Yu-mi

Main cast:
Yoon Kye Sang as Cha Seung Hyo
Go Ah Ra as Son Young
Jin Yi Han as Shim Jae Ha
Kim Sung Eun as Yoo Ha Young

Supporting cast:
Lee Un as Kwon Yong Duk
Lee Min Jung as Yang Ji Suk
Park Ji Young as Kim Young Ae
Ahn Sun Young as Secretary Yeo / Yeo Ji Won
Jung Ho Bin as Attorney Yoon / Yoon Hyo Jin
Jo Duk Hyun as Driver Pi
Ki Joo Bong as Choi Chul Soo (Seung Hyo’s father)
Kim Mi Kyung as Oh Young Hee (Ho Joong’s mother)
Kim Hyung Jung as Bond Trader 1
Jung Hwan Gyu as Bond Trader 2
Yoon Joo Sang as Sa Shin / Death Angel Sun
Woo Yong Nyeo as Geum Nan Hee
Kang Bu Ja
Yoon Yeo Jung
Kim Bo Kang
Kim Sung Gi

Episode : 17
Broadcast : MBC
Aired : 2008-Mar-05 to 2008-May-01

Official Website
Wallpaper
OST
Watch Who Are You with English subtitle
Watch Who Are You with English subtitle

Synopsis (Credit MBC Global Media)
A ruthless corporate raider shares his body with a spirit who has 49 days to spend in this world to meet his daughter! A fantasy drama with a heartwarming story
Facing death, a man is allowed to wander the human world as a ghost for 49 days. He’ll buy the things he never got to buy for his daughter and take her out to restaurants that he never could afford before and buy all the clothes she’ll ever want! Fortunately, the owner of the body that he is borrowing is Cha Seung-hyo, who happens to be young and filthy rich! A plot with melodramatic moments that uses humor to approach taboo material. Who are you? My dad? Or someone else? I’ve fallen in love with him. I found myself helplessly falling in love… But is it true that the soul in his body is my father’s? When my heart races as I try to kiss him, he’ll turn away, But when Seung-hyo tries to kiss me, I have no choice but to push him away in this complicated romance… Two men sharing one body
A ruthless corporate raider and a clumsy motorcycle messenger…
Two souls sharing one body!
Two men living under one roof but living opposite lives! Who are you? Don’t hesitate to pursue love in all its entirety! Don’t let love slip away, leaving you with regrets for the rest of your life!

Ratings

Date	Episode	Nationwide	Seoul
2008/03/05	1	10.4 (14th)	10.4 (11th)
2008/03/06	2	10.0 (14th)	10.4 (11th)
2008/03/12	3	9.5 (16th)	9.2 (15th)
2008/03/13	4	12.4 (9th)	12.5 (9th)
2008/03/19	5	7.9	(<8.7)
2008/03/20	6	7.6	(<9.2)
2008/03/26	7	7.1	(<8.8)
2008/03/27	8	9.9 (18th)	10.2 (15th)
2008/04/02	9	8.5	(<8.8)
2008/04/03	10	10.3 (15th)	10.2 (16th)
2008/04/10	11	7.9	8.4 (20th)
2008/04/16	12	7.2	(<7.9)
2008/04/17	13	8.2 (18th)	8.0 (17th)
2008/04/23	14	6.5	(<7.5)
2008/04/24	15	7.2	7.6 (18th)
2008/04/30	16	6.2	(<7.2)
2008/05/01	17	6.2	(<6.9)

Source : TNS Media Korea