Biography:Madeline Rose Zima (born September 16, 1985) is an American actress. She is mostly known for her six years as Grace Sheffield on the TV series The Nanny or more recently as Mia Cross on the Showtime dramedy Californication and as Gretchen Berg on Heroes. Description above from the Wikipedia article Madeline Zima, licensed under CC-BY-SA, full list of contributors on Wikipedia.