

Kim Dong-hyun
Kim Dong-hyun (김동현), better known to fight fans as Stun Gun, turned a 22-4-1 professional MMA run into one of the most durable second acts in Korean entertainment. Born in Suwon in 1981, he rose through DEEP and Spirit MC before becoming the second Korean fighter signed by the UFC, where his grappling-heavy welterweight style made him a global reference point for Korean mixed martial arts.
His fight résumé still carries weight. A 2009 win at UFC 100 over T.J. Grant and a 2010 submission of Nate Diaz pushed him into the top tier of the division, while his judo, taekwondo, hapkido, and Brazilian jiu-jitsu background gave him a style that felt technical without losing violence. After stepping away from competition in 2017, he shifted cleanly into screen work instead of treating television like a side hustle.
That transition is why Kim still matters on HITKULTR. He became a reliable variety presence through SBS mainstay Master in the House, recurring work across tvN formats like DoReMi Market, and later Netflix competition hits Physical: 100 and Physical: Asia, where he captained Team Korea. Add a million-subscriber YouTube channel and you get a rare Korean sports figure who successfully converted elite-athlete credibility into long-cycle media relevance.
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Kim Dong-hyun at a 2012 UFC event. Photo: Acrofan / CC BY-SA 3.0
