Do Jin Kwang
Do "JoyO" Jin Kwang is a retired StarCraft progamer from South Korea who played Terran for Pirates of Space. He later became a 2v2 coach for MBCGame HERO.
JoyO caused quite a stir back in the Korean qualifiers for the WCG of 2003 when he, with the same build, ran over a lot of Protoss opponents game after game. The build was subsequently called the JoyO Rush after him.
After retiring, JoyO came out of retirement in 2008 and joined MBC Game HERO to help them with their 2v2. He has since retired once again.
JoyO mostly played PvT instead of TvT, making him a Racepicker.