Changes

<br />-<br />– He has an older brother, Do Seungsoo.<br />– Education: Baekseok High School<br />– He was a famous ulzzang kid.<br />– He became a SM trainee in 2010<br />– Personality: Quiet, acts like a mother to the other members, sentimental, considerate<br />– He loves cooking and mostly cooks for the members.<br />– D.O can speak basic English.<br />– He has a habit of humming songs.<br />– He is obsessed with cleaning. He is always tidy and likes to sort things by color, brands, and type.<br />

-watch Watch every performance of D.O. it's worth it

<br />-<br />]in In 2014, D.O. made his small screen debut playing a supporting role in the SBS drama It's Okay, That's Love, which starred Gong Hyo-jin and Jo In-sung. D.O. was praised by film critic Heo Ji-woong for his performance in the series,and was later nominated for the Best New Actor award at the 51st Baeksang Arts Awards.

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.