Joseph Hill "Joss" Whedon (born June 23, 1964) is an American screenwriter, film and television director, film and television producer, comic book author, and composer. He is the founder of Mutant Enemy Productions and co-founder of Bellwether Pictures, and is best known as the creator of the television series Buffy the Vampire Slayer (1997–2003), Angel (1999–2004), Firefly (2002), Dollhouse (2009–10) and Agents of S.H.I.E.L.D. (2013–present).