Jenna Marshall

Jenna Marshall is a recurring antagonist on Pretty Little Liars. She was a secondary antagonist from Seasons 1 to 3, a minor antagonist in Seasons 4 and 5, and the secondary antagonist of Season 7.

She is portrayed by Tammin Sursok, who also portrayed Marjorie in "Aquamarine" and Audrey from "You May Now Kill The Bride."

Villainous Deeds

 * Forcing her step-brother into a sexual relationship.
 * Manipulating people to her own needs.
 * Lying about her surgery not working.
 * Working with the N.A.T. Club.
 * Possibly knowing Shana set the fire.
 * Was on the A-Team seemingly.
 * Is working for Uber A.
 * Unsuccessfully attempted to murder the Liars with the help of Noel Kahn

Trivia

 * Her villain status was mostly unclear in Season 5, but she returned to being an antagonist in the seventh season, where she is now working for Uber A.
 * She did not appear physically in the series' sixth season. However, she appears briefly in archive footage and is mentioned a few times.
 * She is a much more sympathetic character in the original novels. In that continuity, she was the one being molested by her step-brother Toby, instead of the other way around. (Ironically, in the series, Jenna makes a comment that it would be easy to convince their parents that Toby forced himself on her).