-Liar

-Senior at Rosewood High

-Best friend of Alison Dilaurentis, Aria Montgomery,  Hanna Marin, and Emily Fields

-Addicted to Adderall

-Suffered from blackouts the summer Ali "died"

-Romantically linked to Toby Cavanaugh, Wren Kingston, and Ian Thomas

-half sister of Jason Dilarentis (Alison's brother)

-Was admitted into Radley after thinking Toby died

-Former member of the A team

-Obsessed with stealing her sister's boyfriend

-Believed she murdered Alison/The girl in Ali's grave