Jenna Marshall (Tammin Sursok)Jenna Marshall (Tammin Sursok) lives in Rosewood, Pennsylvania and is the step-sister of Toby Cavanaugh and the step-daughter of Daniel Cavanaugh. Before Alison disappeared, Emily, Spencer, Aria, Hanna and Alison believed Toby was spying on them from his treehouse. The girls got revenge on him by throwing a stink bomb into the Cavanaugh garage. Unfortunately, this bomb blinded Jenna. Jenna is very manipulative, deceitful and sexually aggressive. Jenna has a very bizarre relationship with her step-brother and holds a deep-seated grudge against Emily, Spencer, Aria and Hanna because they blinded her.