To retain the popularity and the interest of the viewers, when the action serial Buffy the Vampire Slayer was off air, Joss Whedon had used the comic books as a medium to continue the popular franchise. He has once again opted for the same technique for one of his popular blogs called Dr. Horrible Sing-Along that became quite popular last year. The funny star cast of Neil Patrick Harris and Nathan Fillion was so wonderful and entertaining that people were left begging for more.
