when i saw them at TLA in Philidelphia, it was Brendan Smalls, Gene Hoglan from Strapping Young Lad on the drums, and at least 2 more whose names are escaping me at the moment.  
But yeah, it's an awesome show.  I think if it were half hour episodes it'd get more tiresome, but the short mini-sodes are perfect for the content.  As for favorite character, cmon now, Toki Wartooth, NOT A BUMBLEBEE !