"Dr. Horrible's Sing-Along Blog" Cast
"Dr. Horrible's Sing-Along Blog" cast
All info
Nathan Fillion
Captain Hammer
Neil Patrick Harris
Billy / Dr. Horrible
Felicia Day
Penny
Jed Whedon
Richard Partlow
Maurissa Tancharoen
Simon Helberg
Stacy Harbert
Marti Noxon
Douglas Petrie