Gregory Williams was born in Hollywood, CA. He went to Hollywood High School. At age 15 he became a puppeteer with the Bob Baker Marionettes, performing throughout California. He went on to receive a degree in Motion Pictures and Television from UCLA. He produced a series of award-winning puppet animation education films. After working on The Muppet Movie (1979) as a background puppeteer, he was hired by Jim Henson to write a series of Muppet books for children. His book The Case of the Missing Hat (1982) became a best-seller. He has also written a non-fiction book, The Story of Hollywood (2005). He currently writes a column for the Puppeteers of America's national periodical, The Puppetry Journal.