‘Pretty Little Liars’ Star Sasha Pieterse on Allison’s Unknown Relationships: ‘The Stuff That She’s Hiding Is Amazing’ (VIDEO)

'pll': a big reveal for toby
Star Keegan Allen teases another big reveal for Toby in 3B.
The dearly departed Allison (Sasha Pieterse) on ABC Family’s Pretty Little Liars had a lot of secrets when she died and it appears that some of these secrets will be spilled when the second half of Season 3 premieres in January.

“The stuff that she’s hiding is amazing,” Pieterse told Celebuzz at TV Guide Magazine’s Hot List party. “There are so many big surprises. One in particular that I think will shock everyone — we can’t say anything, it’s so hard for us to say anything about anything — but there’s a lot of relationships that she’s had with people that no one knew about or would ever expect. So, it’s very interesting.”

Vague, but intriguing is the name of the game when it comes to the stars of PLL teasing what’s to come on the future episodes. But when we last saw Pieterse’s character in the show’s Halloween episode, it was revealed that she had some kind of history with Byron Montgomery (Chad Lowe), Aria’s (Lucy Hale) dad. Crazy!

Prior to that episode, the 16-year-old had divulged to us that we’d be seeing a lot more of Ali on the next 13 episodes. As for the reveal of Toby (Keegan Allen) as “A” to the characters on the show, she said, “There’s a lot of conspiracy theories going on if he’s really on the A team or not.”

She continued, “There are possibly a lot of ‘As.’ Some we don’t know. We don’t know if there’s a ruler or not. There’s a lot of mysteries going on.”

“The second part of our season, which premieres Jan. 8, is going to be packed with surprises,” she revealed. “We’re just filming the season finale right now and it’s just insane what’s going on. So we’re very excited to see what the fans think.”

Pretty Little Liars returns Tuesday, Jan. 8 at 8 PM on ABC Family.

What drama are you hoping Ali causes in Season 3B? Sound off in the comments below!

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