Neil Patrick Harris. Neil Patrick Harris was 35 in Dr. Horrible's Sing-Along Blog as 'Doctor Horrible'.
Nathan Fillion. Nathan Fillion was 37 in Dr. Horrible's Sing-Along Blog as 'Captain Hammer'.
Felicia Day. Felicia Day was 29 in Dr. Horrible's Sing-Along Blog as 'Penny'.
Simon Helberg. Simon Helberg was 27 in Dr. Horrible's Sing-Along Blog as 'Moist'.
Nick Towne. Nick Towne was >> in Dr. Horrible's Sing-Along Blog as 'Bad Horse Chorus #1'.
Jed Whedon. Jed Whedon was 32 in Dr. Horrible's Sing-Along Blog as 'Bad Horse Chorus #2'.
Rob Reinis. Rob Reinis was >> in Dr. Horrible's Sing-Along Blog as 'Bad Horse Chorus #3'.Otto Michael Penzato. Otto Michael Penzato was >> in Dr. Horrible's Sing-Along Blog as 'Driver'.Richard Partlow. Richard Partlow was >> in Dr. Horrible's Sing-Along Blog as 'Mayor'.
Maurissa Tancharoen. Maurissa Tancharoen was 32 in Dr. Horrible's Sing-Along Blog as 'Groupie #1'.Stacy Shirk. Stacy Shirk was >> in Dr. Horrible's Sing-Along Blog as 'Groupie #2'.
Steve Berg. Steve Berg was >> in Dr. Horrible's Sing-Along Blog as 'Groupie #1'.
David Fury. David Fury was 49 in Dr. Horrible's Sing-Along Blog as 'Newsman'.
Marti Noxon. Marti Noxon was 43 in Dr. Horrible's Sing-Along Blog as 'Newswoman'.Michael Boretz. Michael Boretz was >> in Dr. Horrible's Sing-Along Blog as 'Other Moving Guy'.Lance Lanfear. Lance Lanfear was 30 in Dr. Horrible's Sing-Along Blog as 'Hawaiian Shirt Guy'.Michael G. Canaan. Michael G. Canaan was >> in Dr. Horrible's Sing-Along Blog as 'Pink Pummeler'.
Jonathan O'Reilly. Jonathan O'Reilly was >> in Dr. Horrible's Sing-Along Blog as 'Purple Pimp'.
Joss Whedon. Joss Whedon was 44 in Dr. Horrible's Sing-Along Blog as 'Director'Ryan Green. Ryan Green was >> in Dr. Horrible's Sing-Along Blog as 'Director of Photography'Jed Whedon. Jed Whedon was 32 in Dr. Horrible's Sing-Along Blog as 'Writer, Original Music Composer'Maurissa Tancharoen. Maurissa Tancharoen was 32 in Dr. Horrible's Sing-Along Blog as 'Writer'
Zack Whedon. Zack Whedon was 28 in Dr. Horrible's Sing-Along Blog as 'Writer'Brandon Clark. Brandon Clark was >> in Dr. Horrible's Sing-Along Blog as 'Digital Imaging Technician'