Charles is physically a boy but identifies mentally as a girl. So that's a why A is obsessed with dolls and girl masks and dresses. When Mrs. DiLaurentis and Jason and Charles' dad found out about his wanting to be a girl, then they sent him to Radley because he was sick. This makes Charles Jason's twin and Ali&Spencer's half brother if the dad is Mr.Hastings and if it's not then maybe he is only half with Alison. So it wouldn't be incest but the show is screwed up so. So in Radley Charles took on the persona of Bethany and Mrs. D joined the committee to be able to keep in touch with her son. There was a flashback that showed her hiding 2 dresses and Ali found them when she was little. *Also remember that Mrs. D was taking Bethany to ride horses at the stalls where Emily and Spencer visited.. She was sneaking "Bethany" Charles to spend time with her son. She was buying him things so he wouldn't feel left out. The night Ali went missing was the night that Mrs. D got that worrisome phone call and was telling Alison that she wasn't allowed to go out for the night. Ali went out anyway. Mrs. D saw Charles hit Ali with the rock and, since he was her child and first born (aside from Jason), she was covering for his mistake possibly trying to tell herself that he was mentally ill. When Spencer saw that someone had been living in the DiLaurentis' basement, she just dismissed it and seemed nonchalant. Charles HAD to have been the one hiding out, and had to have been the one that was wearing the Alison masks and wigs in the house when the girls would catch glimpses of who they thought was Alison.LUCAS COULD BE CHARLES?I think Lucas is Charles. To address those who say that he is too young to be Jason's twin: Charles missed some school while in Radley so he would be behind grade wise, and would have to enroll in a lower grade level despite his age. I think that is why he wanted to reenact the prom of '07. Spencer said that was the year Ian and Melissa went. Jason is their age, so Charles (Lucas/A/Bethany) is their age too but missed that prom. We all know Ali bullied Lucas and called him "herme" short for hermaphrodite, because he was rumored to have "both parts". I know that being a hermaphrodite is not the same thing as being transgendered. Lucas also is very mentally unstable. He seemed likable in the beginning but his character progressed to a much darker side very quickly. He was in the attic of that lake house and was acting very erratic, and he also was acting crazy out in the boat with Hanna. I think Hanna has suffered so much because she was basically Alison made over once Ali disappeared and Lucas' friendship with Hanna suffered as she essentially abandoned him for her friends, possibly resurfacing the feelings of abandonment he felt from his parents leaving him in Radley. Lucas and Mona were both Ali's main targets before she disappeared. I don't know why she hated Mona so much, but it could be that she despised Lucas because she knew he was her brother, but since she was so popular she didn't want her family associated with him. Marlene also told us that we would see A's hair color, and last night, we saw that Charles has dark hair during the prom scene. Assuming that Lucas is the twin, he would have I be fraternal and got the dark hair from his father, Mr. Hastings. Lucas also acts developmentally slow, as he is socially awkward but we know he is intelligent. Marlene did a twitter q&a last night and she said "A is a genius" which debunks those who have said A could not have been smart and in Radley. Going back to Lucas: He is on the smaller side, and we know A is not very built. To answer why he would be targeting all of the girls and their loved ones: I think he was adopted by the people he now lives with. Those people may treat him well, but they will never replace his biological parents or family who didn't accept it want him and he is jealous of the girls and wants revenge because they stood idly by while Ali bullied him. Also, side note but very important, there was a commercial aired on ABC Family for the show "Becoming Us" which is about men who are transgendered. Why would they choose that night of all nights, during this specific episode, to air this commercial DURING PLL? Definitely a hint, but not one that many would consider since it was just a commercial. One more thing to mention about Lucas, Marlene tweeted and said that we have to go back to season 3 episode 1 to understand who "stole the game" from Mona. Lucas returned in that episode. Also, if you remember the intercom system last night, it said "welcome" and "hello" in 3 languages: English, German, and Spanish. Lucas' name is Lucas Gottesman. Lucas is a Spanish name, Gottesman is German. He speaks English. So that covers the 3 languages. German is a very random language to throw in over the intercom, considering that most people in the US speak English or Spanish. This is the clue that Emily, Hannah, Spencer, and Aria found. "Chandelier's rituals. Sister launched liar. A ruler's list chained."All the names I get out of thisCharles DiLaurentis Rachael S. DiLaurentisSearch L DiLaurentisNerd Lucas is the Liar WREN COULD BE CHARLES? The great Charlemange is Charles the Great. Charles the great is from England and wren is too. It doesn't get any more obvious. Wren is Charles! If you go on IMDB In the pilot episode Wren Kingston's name was "Wren Kim" but they changed his last name from Kim to Kingston. I have read from different people that the meaning of Kingston and Kim is meaning leader not a follower. Charles stands for something like that too. Someone made a good point that There's never been scene's with Alison or Wren, Wren has never even been brought up to Alison. I bet it's because he's her half brother. Wren volunteers at Radley for so... Wren had the same "Love thy Neighbor" poster in his apartment or house as Charles had in the dollhouse. Charles/wren/Bethany or Charles/Lucas/Bethany's Father isn't Mr DiLarentis or a hasting(possibly possibly not) but neither is Jason's and he is still a DiLarentis. Wren told Hanna his father spent years in the "nut house" Mrs DiLarentis was on board of the "nut house" maybe that's where she met Wren and Jason's father, and had an affair. Wren also was drawing a picture just like that video at farm. There is a lot of reasons why it could be wren or Lucas. *And to clear up who is in the grave, I think it is Sara Harvey not Bethany. She is not just a coincidental character. She looked like Alison and I think that is who Melissa buried. Rosewood PD sucks at identifying bodies. *And to clear up Andrew in all of this. Andrew could be apart of the A team but I don't think he is Charles. Maybe he had an excuse for why he was listing. It's to easy to say that Andrew is Charles. Everyone thought that Ezra was A at one time because of all the "evidence" against him. Ezra had a reason of why he was doing what he was doing and I'm sure Andrew does to wether it's im in love with Aria or I knew something was up or yeah I've been working with A. Now Keegan said that Charles story is beautifully tragic and that we will all for sorry for him. So this theory sounds pretty tragic to me. I can't really choose between Lucas or Wren. *Mona could still be working with A. *Tanner said that it looked like there was a body in the barrel and if it's not Mona then who is it? Holbrook? *What did the physic mean when she told Hannah that Mona was having trouble passing of Mona isn't dead. *I don't know how I feel about this theory but it's a theory. The theory above is more understandable than this one but when Toby was working for A there was that body that spencer had found and she thought it was Toby. Well what if it was Jason and Jason's twin Charles killed Jason so he could take over Jason's life. Jason has been missing some in the show. Not really a good theory.