Neil Patrick Harris

Doctor Horrible

Nathan Fillion

Captain Hammer

Felicia Day

Penny

Simon Helberg

Moist

Nick Towne

Bad Horse Chorus #1

Jed Whedon

Bad Horse Chorus #2

Rob Reinis

Bad Horse Chorus #3

Otto Michael Penzato

Driver

Richard Partlow

Mayor

Maurissa Tancharoen

Groupie #1

Stacy Shirk

Groupie #2

Steve Berg

Groupie #1

David Fury

Newsman

Marti Noxon

Newswoman

Michael Boretz

Other Moving Guy

Lance Lanfear

Hawaiian Shirt Guy

Michael G. Canaan

Pink Pummeler

Jonathan O'Reilly

Purple Pimp