He played at the 2003 FIFA World Youth Championship in UAE and played in all matches of Korea that advanced to the round of 16. He was a member of the South Korea national team for 2007 AFC Asian Cup.
His teammate at Krylia Sovetov Samara was Choe Myong-Ho of North Korea. Oh left Krylia Sovetov in August 2009 after the club did not pay his salary regularly, hence he was allowed to break his contract and become a free agent. He is known amongst the Korean squad as "The King of Fouls".
‘WeakHeroClass 2’ introduces a fresh wave of characters and talented actors who bring the Netflix K-drama to life ... Hyun-wok has skyrocketed to fame with fan favourites like ‘Racket Boys’ and ‘Twenty-Five Twenty-One.’ Hong Kyung as Oh Beom-seok ... ....
It was only Si-eun’s former friend, the misguided Oh Beom-seok (Hong Kyung), who was spared retribution for his part in Su-ho’s severe injuries ... Su-ho and Beom-seok’s WeakHeroClass 2 appearances.
... to the world of Yeon Si Eun (Park Ji Hoon), his friends Ahn Su Ho (Choi Hyun Wook) and Oh Beom Seok (Hong Kyung), and a bunch of bullies in their high school.