Janel Meilani Parrish Long is an American actress and singer. She starred as Mona Vanderwaal in the mystery-drama television series Pretty Little Liars (2010–2017) and its spinoff Pretty Little Liars: The Perfectionists (2019), and as Margot Covey in the To All the Boys film series (2018–2021). She also portrayed Young Cosette in the Broadway production of Les Misérables (1996), and Jade in the teen comedy film Bratz (2007).