The making of 'Dr. Horrible's Sing-Along Blog'.
Joseph Hill "Joss" Whedon (born June 23, 1964) is an American screenwriter, executive producer, director, occasional ...
Simon Maxwell Helberg (born December 9, 1980) is an American actor, comedian, and musician. He is known for playing H...
Kathryn Felicia Day is an American actress, known for her work as "Vi" on the TV series Buffy the Vampire Slayer and ...
Jed Whedon is a writer and producer.
Neil Patrick Harris (born June 15, 1973) is an American actor, singer, writer, producer, and television host. Primari...
Nathan Fillion (born March 27, 1971) is a Canadian-American actor. He played the leading roles of Captain Malcolm "Ma...