The big “A” reveal in the Season 3 summer finale (Season 3, Episode 12: “The Lady Killer”) of Pretty Little Liars was shocking to everyone, but not really Troian Bellisario (Spencer). Apparently, Troian and Marlene had the whole reveal planned for months!

Wetpaint Entertainment caught up with Troian at the Project Runway fashion show at Mercedes Benz Fashion Week in New York City today (September 7) to talk about Toby, the “A” team, and the upcoming Halloween episode.

Wetpaint Entertainment: What was your first reaction when you found out Toby was A?
Troian Bellisario: I was actually able to squeeze it out of Marlene King a long time ago, so we both had our fingers crossed hoping it would pan out, that the network would let us do it. But I never got a script. They saved it from the cast and the plan had been to shoot several different people as A. But when I found out who it was actually going to be I was very happy.

Do you think Spencer will catch onto Toby at some point?
Do I think or do I know? We’re already filming! I can’t say much, but I can tell you Spencer’s a very smart girl and you can’t put much past her for very long.

Now that we know one of the boyfriends is A, does that open up the possibility of the Liars being part of the A team?
It depends if Toby is actually part of the A team. A lot of people think he’s a double agent. But yeah, I think it could open up the possibility of the girls infiltrating and exposing A.

What are Spencer and Toby’s costumes in the Halloween episode, are they Bonnie and Clyde?
It’s kind of close to Bonnie and Clyde. My costume was actually based on Lauren Bacall and his was Humphrey Bogart. But we thought that might be too old of a reference, so we just did a general film noir idea.

How will the Halloween episode this year differ from years past?
It’s really exciting because last year’s was a flashback episode and this year is happening in real time. So you’ll be dealing with current relationships, current problems and a current A. It’s very exciting, we’ve never done anything like it. We spent a lot of time and energy on it. It’s going to be really, really fun.

Do you think any of the other boyfriends could be A?
For a long time, a lot of the fans thought that Ezra could be A. But I just think Ezra’s really sweet and he’s in it for the long haul.  And Caleb, in the finale, was helping us find A. So I think, no, Toby’s the last thing anyone was expecting.

Would Spencer ever turn onto the A Team?
Oh, I think Spencer has a sliding scale of morality, as we know from her past. I think she loves the girls to death and might convince herself some things are better to do than others maybe for the wrong reasons. Out of any of them, I think she’s the most capable – but I don’t really want to think that.  I don’t know how well that would go over though.

Is this your first Fashion Week?
Yes! I went to my first show, Todashi, yesterday and I’m really excited to be here for Project Runway, it’s so cool.

Are you a fan of the show?
I used to watch it very, very hardcore but I haven’t had a chance to watch it recently only because I’ve been so busy. But it’s wonderful.

What’s your motto when it comes to fashion?
Just be yourself, wear what’s comfortable. I know for me, I try to wear the most comfortable things possible and that’s when I look and feel the best.

Makeup, skincare tips?
Wash my face with water, sunblock and then I smudge a bunch of black eyeliner around my eyes and try not to look too cracked out!

Workout routine?
Everything. I run, I do yoga and I dance as much as I can. I do freeform dance and I do ballet. But generally anything that makes me feel good.

Catch the PLL Halloween special on Tuesday, October 23 at 8 p.m. ET/PT on ABC Family.

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