Actor Baek Bong Ki is not joining his members in tvN army medical drama "Blue Tower Returns."

His agency team said in a written statement, "We regret to inform that he is unable to join the 'Blue Tower Returns' because he is filming a movie on October and collaborating on another drama."

On "Blue Tower Returns," which is to be aired after "Blue Tower Zero," previous members such as Choi Jong Hoon are planning to collaborate in filming. Baek Bong Ki played a man in private first class who does all the work of the team.

"Blue Tower Returns" is to be aired on December 2013.