Guest Stars Janel Parrish as Mona Vanderwaal Tammin Sursok as Jenna Marshall Torrey DeVitto as Melissa Hastings Nia Peeples as Pam Fields Nolan North as Peter Hastings Bryce Johnson as Darren Wilden Julian Morris as Wren Kingston Charles Hittinger as Sean Ackard Co Starring Cody Christian as Mike Montgomery Steven Krueger as Ben Ruben Dario as Waiter Carey James as Jock #2 JD Phillips as Jack #1