Han "Casy" Dong Wook is a former StarCraft progamer from South Korea who played Terran for Air Force ACE. He used to play in amateur leagues.
 Casy was a member of OGN SparkyZ, formally known as KOR. He entered the proscene in 2003. He was a very strong Terran user known for his brilliant micro and creativity, to the point that he has been called the "Neo Emperor", a reincarnation of the legendary SlayerS_`BoxeR`. He shows many resemblances to BoxeR, as they both have a strong TvZ and a weak TvP.
He won one OSL, the 2006 Shinhan Bank OSL Season 1, defeating ChoJJa in the finals at a score of 3-1. Other achievements include placing 4th in the ShinHan2005 OSL, losing to iloveoov in the semifinals 3-2 and Pusan in the 3rd/4th place match 3-0. He also placed 4th in the 2006 Shinhan Bank OSL Season 3, losing to NaDa in the semifinals 3-2 and Iris in the 3rd/4th place match 3-0.
- Despite being hailed for his extremely good TvZ (57%) and TvT (45%), Casy's TvP has proven to be his achilles heel repeatedly. In total, his win rate is located at a depressing 25% with a 14-42 record.
|2007-07-21||13 - 16th||Premier||1v1||2007 Daum OSL||0-3||Grp S.|
|2007-03-17||3 - 4th||Premier||1v1||2007 Shinhan OSL Masters||1 : 3||sAviOr||$2,632|
|2007-02-21||4th||Premier||1v1||2006 Shinhan Bank OSL Season 3||0 : 3||Iris||$4,830|
|2006-09-13||17 - 24th||Premier||1v1||2006 Shinhan Bank OSL Season 2||0-3||Grp S.||$1,065|
|2006-06-23||1st||Premier||1v1||2006 Shinhan Bank OnGameNet Starleague Season 1||3 : 1||ChoJJa||$41,839|
|2006-02-28||4th||Premier||1v1||2005 Shinhan OSL||0 : 3||Pusan|
|2004-10-30||3 - 4th||Premier||Team||2004 SKY Proleague Round 2||1 : 3|
|2004-08-01||9 - 12th||Premier||1v1||2004 Gillette OSL||1-2||Grp S.|
|2004-07-17||5th||Premier||Team||2004 SKY Proleague Round 1||5-5||Grp S.|
|2004-02-29||5th||Premier||Team||2003 Neowiz Pmang Cup Proleague||3-4||Grp S.|
|Complete list of results in any tournament|
|1st||2004||KBC Power Game Show Newcomers' League|
23rd June 2006-18th November 2006
- Casy vs July on Reverse Temple, 2006-07 3rd Shinhan Bank OSL - Casy's Fake FE (Pimpest play)
- Casy vs Nada on Neo Arkanoid, 2006-07 3rd Shinhan Bank OSL - Nada's Marine/Medic Rush
- Casy vs Jy on Troy, OSC 2008 Season 1 - Casy nukerushes Jy into retirement