Biography

Kim Jeong-Hoon, 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 the 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. Kim stated that the conditions of the Korean music industry prevented him from pursuing the 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 the sitcom Orange and A Man and a Woman in 2004. However, Kim Jeong-Hoon made his major breakthrough 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 the 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. On April 28, 2009, he left the public for mandatory military service of two years. About 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 the 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.
- IMDb mini biography by: wikipedia