John Hayward Williams (born June 17, 1953) is an American film producer known for his work both in live-action and in animation. He is mainly known for the mainline Shrek film franchise. He is the founder and owner of his own company, Vanguard Films which produces live-action and animated (through its sister skein Vanguard Animation) products. Description above from the Wikipedia article John H. Williams, licensed under CC-BY-SA, full list of contributors on Wikipedia.