From Wikipedia, the free encyclopedia Jim Mallon is an American television and film producer and writer, most notable for being executive producer of the Peabody Award-winning series Mystery Science Theater 3000 (MST3K). He is also president of the series' production company, Best Brains, Inc., directed more than 75 episodes of MST3K, and played the role of Gypsy from the first season until the middle of the eighth season. Description above from the Wikipedia article Jim Mallon, licensed under CC-BY-SA, full list of contributors on Wikipedia.