William Froug (May 26, 1922 – August 25, 2013) was an American television writer and producer. His producing credits included the series The Twilight Zone, Gilligan's Island, and Bewitched. He was a writer for, among other shows, The Dick Powell Show, Charlie's Angels, and Adventures in Paradise. He authored numerous books on screenwriting, including Screenwriting Tricks of the Trade, Zen and the Art of Screenwriting I and II, The Screenwriter Looks at The Screenwriter, and How I Escaped from Gilligan's Island: Adventures of a Hollywood Writer-Producer, published in 2005 by the University of Wisconsin Press.One of Froug's students, actor and screenwriter Dan O'Bannon, included a reference to Froug in the 1974 film Dark Star. O'Bannon's character, Sergeant Pinback, claims that his real name is "Bill Froug."