From Wikipedia, the free encyclopedia. Janel Meilani Parrish (born October 30, 1988) is an American actress, singer, Broadway performer, songwriter and pianist. She is best known for playing Jade in the 2007 film Bratz: The Movie and her recurring role as Mona Vanderwaal on the ABC Family series Pretty Little Liars. Description above from the Wikipedia article Janel Parrish, licensed under CC-BY-SA, full list of contributors on Wikipedia.