Dr. Horrible I Presume

Dr. Horrible had an internet-exclusive sing-along blog during the Writers Guild of America Strike back in 2008. His doppelgangers were a presence at the StL Comic Con to celebrate the attendance of Nathan Fillion who, of course, played Captain Hammer in the three-part mini-musical. Although, popular as Captain Hammer was, more fans donned the lab coat than the hammer gloves because people just look good in a lab coat.