JASON DILAURENTIS

Jason DiLaurentis (Parker Bagley - Season 1; Drew Van Acker - Season 2) is Alison's brother who is somewhat creepy, and keeps secrets. In If At First You Don't Succeed, Lie, Lie Again it is revealed he used to smoke pot, and hang out with Ian Thomas during the summer. He comes back to Rosewood, but it is unknown why... In the first season Jason attempted to blackmail Spencer by telling her what Alison told him, that Spencer was the one responsible for the incident that happened to Jenna and that Spencer threatened Toby not to tell or else she would uncover the secret Toby and Jenna had been keeping for so long. Jason tells Aria that he is relieved that Ian is dead and that his suicide note confessed to killing Alison because now he knows he didn't. It appears that he has romantic feelings for Aria, causing Ezra, Aria's boyfriend, to wonder if he should think that Jason is a problem. It is revealed that Jason has been stalking Aria and taking pictures of her while she is asleep. Jason told Aria he has feelings for her and then kissed her after which Aria told him she has a boyfriend.