Vagabond' is a drama that reveals a huge national corruption that a man involved in a civil-port passenger plane crash found in a concealed truth. It stars Lee Seung-gi, Bae Su-ji, Shin Sung-rok, Moon Jung-hee and Baek Yoon-sik. First broadcast on the 20th.
About Lee Seung-gi
Lee Seung-gi is a South Korean singer, actor, host, and entertainer.
He has numerous hit songs as a singer such as "Because You're My Woman", "Will You Marry Me", "Return" and "The Ordinary Man".
 Wikipedia