I hardly found Watto. But I've found Shrek, Grumpy Cat, a Predator, Mr. Garrison (or Harrison?) from The Simpsons, and a tark from The Princess of Mars ... and ... maybe ... also C-3PO and R2-D2 in the background, but I'm not sure.
hahaha grimlind, sticch, dobby, 9, cookie monster, c3po, shrek, mr burns, predator, lara croft, spiderman, hellboy, sloth, and is that thrall i see? maybe? ... SIR FORTESQUE!!!!!!... hahahaahahahaha you made my day when i spotted him