I think Joe Flanigan & Chris Judge would complete this line up 
Alright, where do we send our fan letters to these two to ensure they show up?
Perhaps the organisers would love to look into this 
, Problem is that SGCHI is like the weekend right after, might be cutting it close?
And I know those two are definitely doing SGCHI
You never know, though. I've watched celebrities do two cons in the very same weekend, and simply do one day at one and the next day at the other, so a week apart isn't too bad. I mean, Amanda Tapping is also doing SGCHI too and she's also coming to Gatecon, even if her schedule will be more condensed (supposedly) compared to many of the guests.
At this point there's less of a chance since I'd imagine they've already reached out to everyone in order to confirm much of the existing guest list, but last minute additions do happen!
