

Introduction
Doh Kyung-soo (Korean: 도경수; Hanja: 都敬秀; born January 12, 1993), also known by his stage name D.O., is a South Korean singer, actor, songwriter and best known as a member and one of the main vocalists of the South Korean-Chinese boy group Exo. Apart from his group's activities, D.O. has also starred in various television dramas and movies such as Pure Love (2016), My Annoying Brother (2016), Positive Physique (2016), Room No.7 (2017), 100 Days My Prince (2018), Along with the Gods: The Two Worlds, and Swing Kids (2018).
Life and career
1993–2015: Early life and career beginnings
D.O. was born on January 12, 1993 in Goyang, Gyeonggi Province, South Korea. He went to Goyang Poongsan Elementary School, Baekshin Middle School, and Baekseok High School. He has an older brother, Doh Seung-soo, who is three years older than him. D.O. began singing in primary school and was an avid participant in local singing competitions throughout his high school career.
In 2010, he was advised to audition for SM Entertainment after winning a local singing contest. He subsequently became a trainee during his last two years of high school. He performed Na Yoon-kwon's "Anticipation" and Brown Eyed Soul's "My Story" at his S.M. audition.

D.O. was formally introduced as the eighth member of Exo on January 30, 2012. The group debuted on April 8 with the extended play Mama. In July 2013, he was featured in the song "Goodbye Summer" from f(x)'s second studio album Pink Tape. In December 2013, D.O., along with fellow Exo members, Baekhyun and Chen, sang the title track for the group's second EP, Miracles in December.
In September 2014, D.O. made his acting debut with a supporting role in the movie Cart, playing a high school student and son of a grocery store worker and union member (played by Yum Jung-ah). The movie premiered at the 2014 Toronto International Film Festival. He also released an original soundtrack titled "Crying Out" for the movie.
Later 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 June 2015, D.O. featured in KBS' drama Hello Monster, playing a psychopath. In November 2015, D.O. was nominated for the Best Supporting Actor award at the 52nd Grand Bell Awards for his role as Tae-young in Cart.
2016–2020: Lead roles, recognition and military service
In January 2016, D.O. was announced as one of the cast of voice actors for the feature-length animated film Underdog, which premiered in 2019. He voiced Moongchi, a stray dog who is separated from his owner. In February 2016, he collaborated with Yoo Young-jin on a duet titled "Tell Me (What Is Love)" for SM Station. He had previously performed a short version of the song as a solo performance throughout Exo's first concert tour. Later in February, D.O. starred as the male lead alongside actress Kim So-hyun in the romantic film Pure Love. 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 2017, D.O. starred in the comedy thriller film Room No.7. The same year, he played a supporting role in Kim Yong-hwa's film Along With the Gods: The Two Worlds, a blockbuster adaptation of the webtoon of the same name, about a court in the afterlife where the deceased undergo multiple trials for 49 days. 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, produced by Studio Dragon. The series was a commercial success, becoming the fifth highest-rated Korean drama in cable television history and in 2020, became the first CJ ENM drama to be broadcast in Japan's public television channel, NHK General TV.
In May 2019, D.O. was awarded V Live Popularity Award at the 55th Baeksang Arts Awards. Later in May, he announced his upcoming enlistment for South Korea's mandatory military service by posting a handwritten letter on Exo's official fan club. He enlisted as an active duty soldier on July 1, 2019, and served at the Capital Mechanized Infantry Division (Fierce Tiger Division) as a food handler (kitchen police). On the same day, he released the single "That's Okay", a song that he co-wrote, through the SM Station project. In 2020, D.O. made his musical theater debut in a rerun of the original military musical Return: The Promise of the Day, playing the role of Seungho.
2021–present: Return to acting and solo debut
After taking his final military vacation leave in December 2020 without returning to his base in compliance with the army's protocols regarding the COVID-19 pandemic, D.O. was discharged on January 25, 2021. In February, he was announced to have been cast as the male lead in Secret, a South Korean remake of the 2007 Taiwanese film of the same name. His role in the movie is a student who plays the piano.
On June 25, 2021, SM Entertainment announced that D.O. would release his first solo album at the end of July 2021. His first extended play Empathy was released on July 26, along with its lead single "Rose".
Discography
Extended play
| Title | Details | Peak chart positions |
Sales | Certifications | |
|---|---|---|---|---|---|
| KOR |
JPN | ||||
| Empathy |
|
1 | 4 |
|
|
Singles
| Title | Year | Peak chart positions | Sales |
Album | ||
|---|---|---|---|---|---|---|
| KOR | USWorld | |||||
| Gaon |
Hot100 | |||||
| As lead artist | ||||||
| "That's Okay" (괜찮아도 괜찮아) | 2019 | 12 | 19 | 11 | N/A | SM Station Season 3 |
| "Rose" | 2021 | 33 | — | 16 | Empathy | |
| Collaborations | ||||||
| "Tell Me (What Is Love)" (with Yoo Young-jin) |
2016 | 12 | N/A | 2 |
|
S.M. Station Season 1 |
| As featured artist | ||||||
| "Goodbye Summer" (f(x) featuring D.O.) |
2013 | 7 | 26 | — |
|
Pink Tape |
| Other songs | ||||||
| "Tell Me What Is Love" | 2014 | 44 | N/A | — |
|
Exology Chapter 1: The Lost Planet |
| "For Life" (English version) | 2019 | — | — | — | N/A | EXO PLANET #4 – The EℓyXiOn [dot] |
| "I'm Gonna Love You" (featuring Wonstein) |
2021 | 99 | — | — | Empathy | |
| "My Love" | 117 | — | — | |||
| "It's Love" (다시, 사랑이야) | 127 | — | — | |||
| "I'm Fine" | 129 | — | — | |||
| "Dad" (나의 아버지) | 139 | — | — | |||
| "Rose" (English version) | 196 | — | — | |||
| "Si fueras mía" | — | — | — | N/A | ||
| Soundtrack appearances | ||||||
| "Dear My Family" (with SM Town) |
2012 | — | — | — | N/A | I AM. OST |
| "Scream" | 2014 | 22 | N/A | — |
|
Cart OST |
| "Don't Worry" (with Jo Jung-suk) |
2016 | 100 | — |
|
My Annoying Brother OST | |
| "—" denotes releases that did not chart or were not released in that region. Note: K-pop Hot 100 was introduced in August 2011, discontinued in July 2014 and was re-established on December 30, 2017. | ||||||
Songwriting
| Song | Year | Album | Artist | Lyrics | |
|---|---|---|---|---|---|
| Credited | With | ||||
| "That's Okay" | 2019 | SM Station Season 3 |
| ||
| "Rose" | 2021 | Empathy | N/A | ||
| "I'm Fine" |
| ||||
Filmography
Film
| Year | Title | Korean Title | Role | Notes | Ref. |
|---|---|---|---|---|---|
| 2014 | Cart | 카트 | Choi Tae-young | ||
| 2016 | Pure Love | 순정 | Beom-sil | ||
| My Annoying Brother | 형 | Go Doo-young | |||
| 2017 | Room No.7 | 7호실 | Tae-jung | ||
| Along with the Gods: The Two Worlds | 신과함께-죄와 벌 | Private Won Dong-yeon | |||
| 2018 | Along with the Gods: The Last 49 Days | 신과함께-인과 연 | |||
| Swing Kids | 스윙키즈 | Roh Ki-soo | |||
| 2019 | Underdog | 언더독 | Moongchi | (voice) | |
| TBA | The Moon | 더 문 | Seonwoo | ||
| The Secret The Unspeakable | 말할 수 없는 비밀 |
Television series
| Year | Title | Korean Title | Network | Role | Notes | Ref. |
|---|---|---|---|---|---|---|
| 2012 | To the Beautiful You | 아름다운 그대에게 | SBS | Himself | Cameo (Episode 2) | |
| 2014 | It's Okay, That's Love | 괜찮아, 사랑이야 | Han Kang-woo | |||
| 2015 | Exo Next Door | 우리 옆집에 엑소가 산다 | Naver TV Cast | fictionalised version of himself | ||
| Hello Monster | 너를 기억해 | KBS2 | teenage Lee Joon-young | |||
| 2016 | Be Positive | 긍정이 체질 | Naver TV Cast | Hwan-dong | ||
| 2018 | 100 Days My Prince | 백일의 낭군님 | tvN | Won-deuk / Lee-yul | Main role | |
| 2019 | Dear My Room | 은주의방 | O'live | Cameo (Episode 11) |
Music videos
| Year | Title | Ref. |
|---|---|---|
| "Dear My Family" as part of SM Town | 2012 | |
| "Scream" | 2014 | |
| "Tell Me (What is Love)" with Yoo Young-jin | 2016 | |
| "Don't Worry" with Jo Jung-suk | ||
| "Dear My Family (Live Concert Ver.)" as part of SM Town | 2017 | |
| Rose | 2021 | |
| Guest appearances | ||
| "I'm Your Girl" (remake; S.E.S.) | 2014 | |
Theater
| Title | Year | Role | Notes | Ref. |
|---|---|---|---|---|
| Return: The Promise of the Day | 2020 | Seung-ho | Army musical |
Awards and nominations
| Award ceremony | Year | Category | Nominee / Work | Result | Ref. |
|---|---|---|---|---|---|
| APAN Star Awards | 2014 | Best New Actor | It's Okay, That's Love | Won | |
| Asia Artist Awards | 2017 | Popularity Award – Actor | Do Kyung-soo | Won | |
| Asian Film Awards | 2015 | Best Newcomer | Cart | Nominated | |
| Baeksang Arts Awards | 2015 | Best New Actor – Television | It's Okay, That's Love | Nominated | |
| 2016 | Most Popular Actor – Film | Pure Love | Won | ||
| 2017 | Best New Actor – Film | My Annoying Brother | Nominated | ||
| Most Popular Actor – Film | Won | ||||
| 2019 | Most Popular Actor | 100 Days My Prince | Won | ||
| Blue Dragon Film Awards | 2017 | Best New Actor | My Annoying Brother | Won | |
| Brand of the Year Award | 2019 | Best Male Acting Idol | Do Kyung-soo | Won | |
| Buil Film Awards | 2018 | Popular Star Award | Along with the Gods: The Last 49 Days | Won | |
| 2019 | Swing Kids | Won | |||
| Dong-A.com's Pick | 2018 | Next Generation Noteworthy Actor | Do Kyung-soo | Won | |
| Director's Cut Awards | 2018 | Best New Actor | Along with the Gods: The Last 49 Days | Won | |
| Grand Bell Awards | 2015 | Best Supporting Actor | Cart | Nominated | |
| Popularity Award | Nominated | ||||
| International Film Festival & Awards, Macau | 2017 | Talent Ambassador Award | Do Kyung-soo | Won | |
| JIMFF Awards | 2017 | Star Award | My Annoying Brother | Won | |
| Korean Film Shining Star Awards | 2017 | Newcomer Award (Film) | Won | ||
| Max Movie Awards | 2015 | Best New Actor | Cart | Nominated | |
| 2016 | Rising Star Award | Do Kyung-soo | Won | ||
| Soompi Awards | 2019 | Best Actor of the Year | 100 Days My Prince | Won | |
| Best Couple Awards | Do Kyung-soo (with Nam Ji-hyun) 100 Days My Prince |
Won | |||
| Seoul International Youth Film Festival | 2014 | Best Young Actor | It's Okay, That's Love | Won | |
| The Seoul Awards | 2018 | Popularity Award, Actor | Along with the Gods: The Last 49 Days | Won |