Adam West will be there and I give him kudos for his brilliant voice work over the last few years. Especially in Family Guy where he plays an exaggerated version of himself.
The other guest I'd be intereseted in seeing is Billy West, voice of Fry, Zoidberg and Zap Brannigan in Futurama. He'll be signing things for FREE and thats unheard of at these events. By far the best ever accent has to be Zoidberg's and I'll be there just to see him say "brrrrrrrrrlllllrrrlrlrlrlrlrlr" in person.
And the witty dialog made more so by that accent.
Dr. Zoidberg: "Now I'm not saying Professor Farnsworth is old, but if you consider his age he's likely to die soon."
So far I'm more interested in the animation guests. Sadly some 1/2 developed character from Harry Potter and two stars from the 1960 version of batman do little to satisfy my lust for sci fi tv stars to meet and greet. Which is a shame because the last few years have been brilliant. The focus seems to be drifting more towards comics and animation (oh god and not to mention the ever unbelievably popular wrestling.) Definitely only worth buying a single day pass this event.