Doh Kyung-soo (Korean: 도경수; born January 12, 1993), known professionally as D.O. (디오), is a South Korean singer and actor. He is a member of the South Korean boy band Exo. He debuted as a soloist on July 26, 2021, with his first extended play (EP) Empathy. He has since released two more EPs, Expectation (2023) and Blossom (2024), as well as a studio album, Bliss (2025). As an actor, he has starred in various television dramas and movies such as It's Okay, That's Love (2014), My Annoying Brother (2016), Along with the Gods: The Two Worlds (2017), 100 Days My Prince (2018), Swing Kids (2018), and Bad Prosecutor (2022). In recognition of his acting, he 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.
