Continuing his quest to disrupt the status quo and rule the world--and perhaps win the heart of fair Penny in the process--Dr. Horrible decided to ambush Captain Hammer at the one place he would least suspect it: Dragon*Con 2008!
...or Imriela, AmazonRob, and MiCycle just felt the urge to cosplay from the greatest geek musical of all time.
(Yes, Imriela really did go around with a fake petition asking for signatures. No, she did not have the nerve to ask Nathan Fillion.)