Well, his character looks just like the little head next to Yavn Speaks. But, you probaby guessed that part already.
I can tell you, I have seen him a couple of times and it hasn't been that huge a deal - mainly because he's swamped by people following him around (some chanting "can I have Inferno? Plz!!!) - I can tell you when I've seen him he's been wearing a light gray skull shirt and red shorts. Basically, I've just gotten to say hello, nice job with the site, etc... but he barely has time to respond.