Ji Sung is a South Korean actor. His film credits include My PS Partner. Ji Sung has appeared in series such as Protect the Boss, Secret Love, Kill Me Heal Me, Familiar Wife, Dr. John, and The Devil Judge. Beyond acting, Ji Sung has released albums including 잘난여자 / 아리랑 인생, 잘난여자야, and the extended play 사랑한다니까요. He has also released singles such as Drama Secret, Pt. 7 and 가슴에 번져온다.