Kim Jeong-hoon

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Kim Jeong-hoon
Kim Jeong-hoon (aka John Hoon, born January 20, 1980) from acrofan.jpg
Born (1980-01-20) January 20, 1980 (age 39)
Other namesJohn Hoon
Alma materChung-Ang University (BFA)[2]
Years active2000–present
AgentMersenne Entertainment
Height1.79 m (5 ft 10 12 in)[2]
Korean name
Revised RomanizationGim Jeonghun
McCune–ReischauerKim Chŏnghun

Kim Jeong-hoon (born January 20, 1980), also known by his stage name John Hoon, is a South Korean singer and actor. He initially rose to fame as a member of South Korean duo UN debuting with the single Voice Mail in 2000. After the duo disbanded in 2005, his fame increased as an actor starring in Princess Hours, a drama based on a manhwa.


He debuted as a member of Korean duo UN in 2000, an acronym for "United N-generation". After six years of success, the duo officially announced that they were disbanding in September 2005, and Kim announced that he was going to pursue an acting career instead.[3] Kim had stated that the conditions of the Korean music industry prevented him from pursuing music he truly wanted to do.

He originally wanted to be a laboratory researcher. Kim did not realize that he would become an actor and singer. By 2005 he had already begun starring in Korean dramas, such as sitcom Orange and A Man and a Woman in 2004. However Kim Jeong-hoon made his major break through when he starred in the hit MBC drama Princess Hours alongside Yoon Eun-hye and Ju Ji-hoon. Kim played the role of Yul, a caring and gentle 19-year-old who is second in line to become the crown prince and has returned to Korea to reclaim the two things that were snatched from him after his father's death: the title of crown prince and the crown princess who was initially supposed to marry him. He had said his final dream is to become a renowned movie director.[4] On April 28, 2009, he left the public for mandatory military service of two years.[5] 80000 of Kim Jeong-hoon's fans from Japan, Korea, Turkey and China gathered to see him off to serve the country.

After serving two years in military, Kim returned to civilian life on February 28, 2011. He has appeared in a number of dramas and shows upon his return. In 2016, Kim was cast in the Chinese drama God of War, Zhao Yun along with Girls' Generation's YoonA. Kim portrayed Gao Ze, a love interest of YoonA's character in a love triangle. That was his first historical drama.


Kim attended Seoul National University and took up Dentistry but decided to drop out to focus on his acting career. Later on, he enrolled in Chung-Ang University, where he majored in acting. He is also academically gifted with an IQ of 146.


Television drama[edit]

Year Film Role Notes
2002 Orange SBS
2006 Princess Hours Prince Lee Yul MBC
Fog Street Lee Yoon-soo KBS2
Angel (guest appearance)
2007 Witch Yoo Hee Yoo Jun-ha SBS
2008 Love Strategy Jin Zhen Hao / Kim Jung-ho Hunan TV
2011 I Need Romance Kim Sung-soo tvN
2011 RUN60 Pierro / Second GHOST (Episode 4–6) TMX (Tokyo MX)
2012 Dummy Mommy Lee Je-ha SBS
2013 Love in Her Bag Do Ji-hoo jTBC
2015 Missing Korea Yoo Jung-hoon KBS
Late Night Restaurant Kang Hyun-sung (Episode 13) SBS
Immutable Law of First Love Park Jong-goo Naver TVcast
2016 God of War, Zhao Yun Gao Ze Hunan Television
Start Again Ha Sung-jae MBC


Year Film Role Notes
2004 DMZ Kim Ji-hun
Shut Up! Kwon Myung-seok
2009 Cafe Seoul Korean-Japanese film
2011 Sunday Punch Soo-hyun
2014 Stray Dogs So Yoo-joon
2015 Emperor's Holidays
2018 Pacific Rim: Uprising Lieutenant Huang Hollywood Debut

Music video[edit]

Year Song title Artist
"Don't Cry" Paran
"2nd Story" RAN

Musical theatre[edit]

Year Title Role
2012 Catch Me If You Can Frank Abagnale Jr.


  • Mini-Album (at UN Years) - Best Album [2006]
  • 1st Mini-Album - 5 Stella Lights [25.10.2006]
  • 1st Single - Sad Song [28.02.2007]
  • 2nd Single - Boku Wa Kimi Wo Aishiteru [16.05.2007]
  • 3rd Single - Kimi ni Deatta Hi Kara [05.09.2007]
  • 1st Album - Bokutachi Itsuka Mata... ~ETERNITY~ [17.10.2007]
  • 4th Single - Sakura TEARS [20.02.2008]
  • 5th Single - Kimi wo Mamoritai [16.07.2008]
  • 6th Single - You Are Not Alone [01.10.2008]
  • 2nd Album - Kyo mo Atarashii Yume wo Miru [05.11.2008]
  • 7th Single - Blue Moon [01.07.2009]
  • 1st Single Korea - In Your Eyes [03.09.2009]
  • 1st Single Korea - In Your Eyes [16.12.2009] Japan Version
  • 8th Single - Rainy Flash [20.01.2010]
  • 9th Single - Al Dente [18.08.2010]
  • 3rd Album - Machi [17.11.2010]
  • 2nd Single Korea - Present [16.04.2011]
  • 4th Album - Voice [23.05.2012]
  • 1st Mini Album Korea - My Story [12.10.2012]
  • 10th Single - Message [31.10.2012]
  • 5th Album - Voice 2 [31.10.2012]
  • 1st Mini Album Chinese - [11.11.2012]
  • 11th Single - Futari kinenbi [16.01.2013]
  • 12th Single - Haru koi [03.04.2013]
  • 6th Album - Love×Best [09.01.2014]
  • 2nd Mini Album Korea - 5091 [03.07.2014]
  • 1st Best Album - John Hoon -Do My Best- [16.07.2014]
  • 13th Single - Special Day [21.01.2015]
  • 14th Single - Harukaze [06.04.2016]
  • 3rd Single Korea - Marry Me, Marry You [06.05.2016]
  • 15th Single - Prologue ~ koi o yobu uta ~ [25.01.2017]
  • 1st Mini Album Japan - Kioku no Kaori [26.07.2017]
  • 16th Single - Ima ~ yume no yō ni kimi ga ~ [11.07.2018]

Variety show[edit]

Year Title Network Notes
2014 The Genius: Black Garnet 2014-2015 'off to school tvN ep.1 - ep.6
2017 Radio Star MBC ep. 515
Problematic Man tvN ep.94
2018 Its Good To Be A Little Crazy SBS ep.11
secretgarden tvN ep.5
Radio Star MBC ep. 576
Foreigner MBC ep.1, ep.2
Taste of Love tvChosun ep.1 - ep.9


  1. ^ Korean website
  2. ^ a b 김정훈 탤런트, 가수. Naver Profiles (in Korean). 12 March 2010. Retrieved 6 August 2011.
  3. ^ "쉘 위 토크 드라마 '궁' 김정훈". Archived from the original on 2008-01-05. Retrieved 2006-11-04.
  4. ^ "29일 공식 해체 UN 김정훈, 장래 포부는 영화감독". Archived from the original on 2008-01-05. Retrieved 2006-11-04.
  5. ^ [1]

External links[edit]