Whether or not Ezra Fitz (Ian Harding) really is Uber "A", there's clearly something up with the hot teach, and according to spoilers, at least one character already knows the truth, whatever it may be. Who could already know one of the show's biggest secrets? We've got a few guesses.

Mona. Mona's the original "A". Ezra may or may not be Big "A". It would make sense if Mona knew the truth about him — plus, how twisted would it be if Mona was pretending to be on the Liars' side while knowing this secret the whole time?

One or more of the NAT club. Or whatever the heck you want to call the nebulous "B" team that seems to consist of Melissa, Jenna, Shana, Wren, and maybe some others. It seems like this group has been trying to track Ali; if that's Ezra's goal, too, maybe they've worked together.

Alison. It seems like Alison and "A" have been playing a cat-and-mouse game for a long time. If Ezra really is Big "A", it's quite possible Ali knows, since it's likely that by now she's discovered the identity of her enemy.

Maggie. Say wha? While we don't know why Ezra's fake baby momma would know his deep dark secret, the fact that Maggie is apparently back in Season 4B makes us wonder what other layers are left in her story.

Aria. Could Aria know the truth about Ezra, and maybe even be teamed up with him? Some fans think so!

Who do you think knows the truth about Ezra? Sound off in the comments below!

Find more Pretty Little Liars spoilers here.

Catch the Pretty Little Liars Season 4 Halloween special on Tuesday, October 22, 2013 at 8 p.m. ET/PT on ABC Family.

Rebecca Martin is an Associate Editor at Wetpaint Entertainment and our resident Game of Thrones, Breaking Bad, and genre TV expert. Follow her on Twitter and Google+!


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