Guest Stars Janel Parrish as Mona Vanderwaal Keegan Allen as Toby Cavanaugh Lesley Fera as Veronica Hastings Tammin Sursok as Jenna Marshall Torrey DeVitto as Melissa Hastings Brant Daugherty as Noel Kahn Bryce Johnson as Darren Wilden Julian Morris as Wren Kingston Charles Hittinger as Sean Ackard Amanda Schull as Meredith Sorenson Steven Krueger as Ben Co Starring Jill Holden as Mrs. Welch
