From Wikipedia, the free encyclopedia Jane Frances Kaczmarek (born December 21, 1955) is an American actress. She is best known for playing the character of Lois on the television series Malcolm in the Middle. Kaczmarek is a three-time Golden Globe and seven-time Emmy Award nominee. She lives in San Marino, California. Description above from the Wikipedia article Jane Kaczmarek, licensed under CC-BY-SA, full list of contributors on Wikipedia.