The making of 'Dr. Horrible's Sing-Along Blog'.
Felicia Day
Herself
Nathan Fillion
Himself
Neil Patrick Harris
Simon Helberg
Maurissa Tancharoen
Jed Whedon
Joss Whedon
Zack Whedon
Ethan Shaftel
Director
Ryan Jackson-Healy
Editor
Ben Van Cleave
Cinematography
Producer