Nope, I'm a big guy, slowly losing the battle to resist becoming a "fat guy" (I may have, in fact, lost this battle...but I'm still fighting.), with short dark hair and a close-trimmed beard.  No glasses, but the sardonic look is likely.  I think the long-haired guy with the glasses may be my friend Jim, who's actually in charge of con ops for FenCon.  I'm the other ops guy.  
At last year's FenCon I had a bit of a Marine Corps-style buzz cut - the result of a communication problem with a hairdresser a few days before.  "You really want it that short?"  "Well, no, that's a bit shorter than I had planned..." 

  Still had the beard, though, trimmed to match.  Unfortunately, I only got to see about 30 minutes of the actual con last year, so I only really met the folks who came by the ops room.  If you saw the Dalek make its trip down the hallway, I was the one of the guys pushing it - the one with the microphone throwing wisecracks out through the Dalek's voicebox.
You should come back this year - we've got a new hotel (the hotel was the one recurring compalint last year...they really dropped the ball.  Again, and again, and again...) and it looks like we're gonna keep growing.