Adapted from the YA book series by Sara Shepard, Pretty Little Liars is one of the most gripping teen mysteries, and that is thanks to the large, talented cast. While the spotlight is on the five actors playing Alison DiLaurentis and the four friends looking into her disappearance from Rosewood, there are many main and supporting players who contribute to the show's fast-paced and powerful plot – from relatives, romantic partners and acquaintances who seem trustworthy but end up being suspicious.

https://screenrant.com/pretty-little-liars-cast-character-guide/