In October 2016, D.O. starred alongside Chae Seo-jin in Be Positive, a web drama produced by Samsung. The series became the most watched Korean web drama of all time.
In November 2016, D.O. starred alongside Jo Jung-suk and Park Shin-hye in the film My Annoying Brother, playing a national level Judo athlete.D.O. and Jo Jung-suk also recorded the ending theme song, titled "Don't Worry", for the movie.D.O . was awarded the Blue Dragon Film Awards' Best New Actor award a year later for his performance in the film.
In 2018, D.O . starred in Swing Kids, a film set in a prison camp in South Korea during the Korean War. He plays a North Korean soldier who falls in love with tap dancing in the midst of all the chaos. The same year, he was cast in his first small-screen leading role, playing a crown prince in 100 Days My Prince. The series was a commercial success, becoming the fifth highest-rated Korean drama in cable television history.D.O. was awarded Most Popular Actor at the 55th Baeksang Arts Awards.
==Discography==