Tom "Kalgan" Chilton is a lead game designer for Blizzard Entertainment, and is currently the Game Director for the MMORPG World of Warcraft. He has been referred to as "Blizzard's PvP guru." Chilton, along with Rob Pardo and Jeffrey Kaplan, were the three Lead Designers for World of Warcraft: The Burning Crusade; he was one of six Game Designers.Chilton was on the developer panels at BlizzCon 2005 in October 2005 and BlizzCon 2007 in August 2007.