Neil Patrick Harris
Dr. Horrible
Nathan Fillion
Captain Hammer
Felicia Day
Penny
Simon Helberg
Moist
Marti Noxon
Newswoman
Jed Whedon
Bad Horse Chorus #2 / Bad Horse Chorus #2 / Dead Bowie
Rob Reinis
Bad Horse Chorus #3 / Moving Guy / Bad Horse Chorus #3
Otto Michael Penzato
Driver / Van Driver
Richard 'Rick' Partlow
Mayor
Maurissa Tancharoen
Groupie #1
