I was also able to meet Adam Baldwin who starred in Firefly and Chuck among other shows. He was so nice and signed everyone's autograph with a unique quote from one of his shows. Mine said "with love and grenades" since I chose a Firefly picture for him to autograph. Here is a picture of me shaking his hand.
Another famous celebrity who made an appearance at Dallas Comic-Con was William Shatner (the original Captain Kirk on Star Trek) but because of the lines I was in and the way the panels were set up I never actually saw him in person. I did see John Noble and Jasika Nicole from Fringe (Walter and Astrid) and Brandon Routh (Superman Returns) which was pretty cool.
Even with all of the lines and people it was the best Comic-Con yet! I'm already planning on going next year and hopefully Nathan Fillion will be able to make it this time!