Bethany Young: Who was the dead girl in Alison’s (Sasha Pieterse) grave? This girl, whoever she is.
Marion Cavanaugh: Toby’s (Keegan Allen) mom. Her death at Radley was ruled a suicide, but there’s a plenty of reason to believe there’s more to the story.
Ian Thomas: A founding member of the N.A.T. Club (played by Carlo Marks in the pilot, then later by Ryan Merriman). He survived being pushed off the bell tower by Alison (Sasha Pieterse), then found dead with a suicide note — which is believed fake.
Maya St. Germain (Bianca Lawson): Emily’s (Shay Mitchell) first girlfriend was killed by Lyndon James (Sterling Sulieman) for choosing Emily over him.
Lyndon James (Sterling Sulieman): Maya’s (Bianca Lawson) ex and murderer, Lyndon is killed by Emily (Shay Mitchell) in self-defense, which avenges Maya’s death.
Garrett Reynolds (Yani Gellman): A police officer who was charged for Alison (Sasha Pieterse) and Maya’s (Bianca Lawson) murder, but was later freed. He was killed by A, because he was going to reveal every secret he knew to Spencer (Troian Bellisario).
Darren Wilden (Bryce Johnson): Police detective who became obsessed with the investigation into Alison’s (Sasha Pieterse) death. He was shot and killed by CeCe Drake (Vanessa Ray).
Shana Fring (Aeriel Miranda): Believed by the Liars to be A, Aria (Lucy Hale) kills her while she’s holding the other Liars captive at gun point.
Mona Vanderwaal (Janel Parrish): After discovering a connection between Bethany Young and Alison (Sasha Pieterse), as well as a reason to believe that Alison is “A”, “A” murdered her.
