Joss Whedon

Joseph Hill "Joss" Whedon (born June 23, 1964) is an American screenwriter, executive producer, film and television director, comic book writer, occasional composer, actor, and the founder of Mutant Enemy Productions and co-creator of Bellwether Pictures who is also best known for being the creator and the showrunner of the television series Buffy the Vampire Slayer from 1997 to 2003, its spin-off Angel from 1999 to 2004 and the Fox space western television series Firefly in 2002.

He served as the screenwriter of the 1995 Disney/Pixar film Toy Story and the treatment of the 2001 Disney animated film Atlantis: The Lost Empire. He also wrote the lyrics to the song, My Lullaby, for the direct-to-video feature, The Lion King II: Simba's Pride, and received an Annie Award nomination for it. He also became well known for directing and writing the 2012 Marvel superhero film The Avengers and will return to direct the upcoming 2015 Marvel film Avengers: Age of Ultron.