him off. Their next suspect is Mike, Aria's brother, who has been secretly visiting Alison in jail. Mike eventually reveals to Aria that Mona was working with 'A' to have Alison arrested by faking her death, although the actual possibility that Mona may be dead remains unknown. Realizing that Alison is innocent, the girls decided to work on proving Ali's innocence without incriminating Mike. However, Hanna becomes a suspect in Mona's murder, and is arrested after her blood is found on Mona's clothes. Aria, Spencer, and Emily, along with Ezra and Caleb, try to get any evidence that could help Alison and Hanna, though 'A' keeps on getting one step ahead of them. Mike considers taking the stand on Alison's trial; while Caleb agrees with Mike, Aria and Ezra convince him otherwise. Alison's trial ends with her being found guilty on Mona's murder, and subsequently, Aria, Spencer, and Emily are arrested as accessories. After being kidnapped by 'A' on their way to the prison, Hanna, Aria, Spencer and Emily awaken in a dollhouse lair, with rooms designed to look like their bedrooms with surveillance. They discover that Mona had indeed faked her death; however, she is going under the name Alison in the presence of 'A'. They attempt to leave during the "prom" 'A' forces them to create. Spencer then learns A's name: Charles, who is the oldest child of Kenneth and Jessica DiLaurentis. Upon managing to escape the dollhouse, they learn that they are surrounded by an electric fence and therefore trapped. Cast Main cast Troian Bellisario as Spencer Hastings Ashley Benson as Hanna Marin Tyler Blackburn as Caleb Rivers1 Lucy Hale as Aria Montgomery Ian Harding as Ezra Fitz Laura Leighton as Ashley Marin Shay Mitchell as Emily Fields Janel Parrish as Mona Vanderwaal Sasha Pieterse as Alison DiLaurentis Recurring cast Keegan Allen as Toby Cavanaugh Lesley Fera as Veronica Hastings Lindsey Shaw as Paige McCullers Roma Maffia as Lieutenant Linda Tanner Cody Allen Christian as Mike Montgomery Drew Van Acker as Jason DiLaurentis Brandon W. Jones as Andrew Campbell Chloe Bridges as Sydney Driscoll Miranda Rae Mayo as Talia Mendoza Melanie Moreno as Cindy Monica Moreno as Mindy Torrey DeVitto as Melissa Hastings Nolan North as Peter Hastings Brendan Robinson as Lucas Gottesman Jim Abele as Kenneth DiLaurentis Sean Faris as Detective Gabriel Holbrook Will Bradley as Johnny Raymond Guest cast Holly Marie Combs as Ella Montgomery