Dr. Horrible's Sing-Along Blog is an Emmy Award-winning musical web series. Created by Joss Whedon, the series follows Billy (Neil Patrick Harris), a wanna be supervillion named Dr. Horrible and his nemesis, super hero, Captain Hammer (Nathan Fillion). Dr. Horrible is in love with Penny (Felicia Day), but he is too afraid to tell her. The show won and Emmy in 2009 for Outstanding Special - Short-format Live-Action Entertainment Programs. The show made its television debut on The CW in the fall of 2012.