Lee "Jaedong" Jae Dong is a Zerg player in StarCraft: Brood War and its sequel StarCraft II. He is generally considered the greatest Zerg player in StarCraft: Brood War's 13 year long history of professional play. He is also one of a handful of top tier StarCraft: Brood War professionals who managed to achieve great success in its sequel, StarCraft II, as well. His success earned him the nicknames "The Tyrant", "Legend Killer", and "God of Destruction".

Jaedong made his debut as a licensed progamer in 2006, playing for the team Lecaf Oz. He immediately impressed, winning the 2006 Rookie of the Year Award at the 2nd Annual Korea e-Sports Awards. In December of 2007 Jaedong won his first major tournament, the 2007 Ever OSL (OnGameNet StarLeague). Jaedong would go on to win this title twice more in his career, becoming the third player to win the prestigious "Golden Mouse" award for winning three OSL titles, and the second after SlayerS_'BoxeR' to win two OSL titles back-to-back. In addition Jaedong won two MSL (MBCGame StarCraft League) titles, various smaller tournaments, and spend a total of 16 months as the number one ranked player in Korea.

Jaedong switched to playing StarCraft II in 2012, along with the majority of Korea's StarCraft: Brood War professionals. While his initial results where poor, Jaedong steadily improved. On December 12, 2015, Evil Geniuses announced Jaedong would be joining their StarCraft II division.

In the second half of 2013, Jaedong returned to the ranks of the world's top StarCraft players, having numerous high tournament finishes, a first place finish in the ASUS ROG: NorthCon 2013 tournament, and a second place finish in that year's premier tournament, the WCS 2013 Global Finals at Blizzcon 2013; awarding enough prize money to dethrone Fatal1ty, who had held the top position of the prize money won in esports for years.

On November 1, 2016, Evil Geniuses announced Jaedong would retire at the end of Blizzcon 2016.