Dr. Horrible's Sing-Along Blog is a 2008 musical comedy-drama miniseries in three acts, produced exclusively for Internet distribution. Filmed and set in Los Angeles, the show tells the story of Dr. Horrible (played by Neil Patrick Harris), an aspiring supervillain; Captain Hammer (Nathan Fillion), his nemesis; and Penny (Felicia Day), a charity worker and their shared love interest.
The series was written by writer/director Joss Whedon, his brothers Zack Whedon (a television writer) and Jed Whedon (a composer), and writer/actress Maurissa Tancharoen. The team wrote the musical during the 2007...