Doh Kyung-soo, better known by his stage name D.O., is a South Korean singer and actor. He is a member of the South Korean boy band Exo.
Apart from his group's activities, D.O. has starred in various television dramas and movies such as Pure Love, My Annoying Brother, Be Positive, Room No.7, 100 Days My Prince, Along with the Gods: The Two Worlds, Swing Kids, Bad Prosecutor, and The Moon. He debuted as a soloist on July 26, 2021, with his first extended play Empathy. In addition, D.O. was selected by the Korean Film Council as one of the 200 Korean actors that best represent the present and future of Korea's movie scene.