From Halopedia, the Halo wiki
Stuart Moulder is a product unit manager for the Microsoft corporation. He has also served as a producer for a number of games. At the same time, he has worked as a writer, actor, and Microsoft joint chief of staff. He was involved heavily in the Close Combat series, working as a product unit manager, was a producer for the Leisure Suit Larry series, wrote historical text for the game Close Combat III, and even gave his voice to the animated movie Space Quest 4.