Michael John Nelson (born October 11, 1964 in St. Charles, Illinois) was the head writer of the cult television series Mystery Science Theater 3000 for most of the show's 11-year run, and spent half of that time playing the on-air host, Mike Nelson. Series creator and former host Joel Hodgson reportedly chose Nelson to be his replacement because he thought Nelson was a natural leader, a gifted comedian and musician, and simply looked good standing next to the show's puppets.