utinni!
Kenny Baker with, presumably, Mrs. R2Hal Wamsley holds the prestigious office of being the Jawa who blasted R2 in A New Hope (aka Dathcha). Hal was signing everything with the tagline "Wanna buy a used droid?" - nice guy, even slid me a complimentary signed bw 8x10 (my favorite kinda signed bw 8x10, coincidentally).

UPDATE: Hal may not be the real deal!

Next to Hal in the background there is The Herb "Lt. Boomer" Jefferson from Battlestar Galactica (ComicCon veteran).

A little further down the table was Kenny "R2" Baker (for a bit more embellishment on the man inside the droid, check the Cincinnati show).

next slide please