All these guys with the exception of Allen Dilling (considered a 'youngster' at Blizzard, having only worked there for eight years) contributed to the art design for the original StarCraft.
Didier started off the discussion, which was first a powerpoint-style demonstration from all five panel members followed by a question and answer session from fans in attendance. On hand during a panel discussion were Sam Didier, Senior Art Director for the game, Rob McNaughton, Lead Technical Artist, Trevor Jacobs, Senior 3D Artist, Allen Dilling, Senior 3D Artist, and Dave Berggren, another Senior 3D Artist. The second day of Blizzard's Worldwide Invitational 2007 in Seoul, South Korea shed light on some of the artistic efforts that went into creating StarCraft 2's units and environments. How units and environments are being created in the sequel.