Zack Whedon (born August 14, 1979) is an American television writer. He graduated from Wesleyan University in 2002 with a movie degree. Whedon has written for the HBO series Deadwood. He is the son of writer Tom Whedon and the brother of writer-producer-director Joss Whedon. Whedon has also done work on his brother's series Angel as well as collaborated with his brother on the internet only serial Dr. Horrible's Sing-Along Blog.