Aria Marie Montgomery is a fictional character in the Pretty Little Liars franchise created by American author Sara Shepard. Described as an “alternative” and artsy teen, the franchise revolves around Aria and her three best friends (Spencer Hastings, Hanna Marin and Emily Fields) being blackmailed, stalked and tortured by an anonymous identity known as “A” after the disappearance of their friend Alison DiLaurentis.