Are you still reeling by the Sin Rostro reveal from Jane The Virgin Season 1 Episode 12?

The fact that the big bad is Rose was almost as big of a surprise as when Rose buried her husband (and father to Rafael and Luisa) in a pile of wet cement.

However, as Bridget Regan explained to me late last week, at this point only the narrator (Anthony Mendez) and the audience are the ones who know what Rose is really up to.

Will Rose work her master plan before anyone else finds out? Emilio may be out of the picture - but are what Rose's feelings for Luisa really about? And how has it been for the actress to currently play bad girls on both Jane and ABC's Agent Carter Season 1?

Let's find out what she had to say about that and more...

TV Fanatic: Tell me when you found out that Rose was kind the big bad.

Bridget Regan: Jennie told me right before the script for [episode] 112 came out. In the beginning, I had no idea, and then over the course of shooting the season, I got these little hints, a certain little thing in a script. Like, do you remember when we were discussing Tom, the bellboy who was killed with a corkscrew? We did one take where he’s ‘Sin Rostro’ looking at me. We did another one where he’s looking off.

And I thought maybe I worked for Sin Rostro, that’s actually what I really thought, but towards the end, I thought, ‘Rose is up to something,’ and ‘hey, this is a telenovela, I’m definitely up to something.’ But I really didn’t think it was me. I’m shocked. I’m shocked. I thought Sin Rostro was going to be a man. I fell in love with the show even more, and I was, like, yes, the big bad-ass villain of the season is a woman and it’s me. I was thrilled. Just another reason to love Jane the Virgin, and love Jennie Snyder Urman. It’s just such a great show, for women in general.

TVF: I was surprised but I guess you have played your share of bad girls along the way.

BR: Are you referring to White Collar?

TVF: Yes, I loved you on White Collar.

BR: Thank you so much. That was another twist reveal. That one I knew from the very beginning that I was a former MI5 spy and so on. So this is a very different experience for me because I had no idea, and I could see the writers having just so much fun…everybody was guessing.

TVF: I saw somewhere online where people thought it was probably the narrator.

BR: Absolutely. I mean, there were so many theories. I’m super relieved that it’s out there now because everyone’s asking me about Jane the Virgin and I would just have to leave the room to keep it a secret.

TVF: I’m guessing it’s safe to say that she didn’t have feelings for Emilio but what about Luisa? Was that just part of the game, too?

BR: The most interesting thing for me about playing Rose is the conflict with Luisa and her feelings for her, because those are one hundred percent real. They are and they’re inconvenient. It’s coming up in Chapter 14, we get a really awesome flashback sequence of seeing how Rose met Luisa, and it puts the puzzle pieces together of how did these women go from being lovers to being stepmother and stepdaughter. I mean, it’s hard to even say it, right?

So that sequence was really great, and in those moments, we actually see Rose’s true colors, and I learned a lot about her then where, yeah, it’s all been an act except with Luisa. That has been real. Working with Yara Martinez, and exploring these feelings, these genuine, real feelings that these women have for each other, and the conflict surrounding them, it just makes for really great, great scenes.

TVF: So Luisa had to get put away to keep Rose on her game because maybe just having Luisa around was a distraction and throwing her off her game?

BR: Yeah, exactly, exactly. Rose has had a big, old, master plan in the works, and it involves marrying Emilio, giving up practicing law, and becoming this interior decorator, I’m putting that in quotes right now, “interior decorator,” and it was all a front to start running this underground plastic surgery ring. Which, by the way, if you want to go down a rabbit hole of research, start looking into underground plastic surgery.

TVF: Oh, my…

BR: It is real and terrifying. Yeah, there’s a thing called face blurring where they wipe away, like they take away 80 or 90 percent of your facial features. Anyway, I can’t believe it. So I found out a lot about that, more than I knew before Jane the Virgin, of course.

TVF: Is it safe to say that all secrets are probably not all revealed?

BR: Oh, there’s so much more to come. I mean, there are still a lot of question marks. Who killed the bellboy? Who killed Roman Zazo? There’s a lot that still needs to be figured out and coming up in the next episode, in Chapter 13, the audience, and our amazing narrator [and] Anthony Mendez, they’re the only people that know that I am Sin Rostro.

So Rose’s plan of going ahead and framing her husband Emilio and saying he’s fled the country and Nadine and Michael are working with that theory and everything is going according to Rose’s plan until Michael does some further digging and he reveals something to Rose that she didn’t know about her husband Emilio, and that sends a hitch into her plan and she’s forced to improvise a little. Rose doesn’t mess around. She’ll bury you in cement.

TVF: You’re having quite a moment right now since you’re also in Agent Carter right now.

BR: I know. It’s crazy, right? It’s crazy.

TVF: That role definitely is different than Jane, it’s a whole different time period, but maybe it’s not as different as we think. What do you think of Dottie?

BR: There’s a couple of similarities. These women are both powerful, driven, focused, dangerous women. However, Dottie is, I mean, she’s a black widow. She’s a trained assassin, she’s a soldier, and this character of ‘Dottie,’ - I’m doing air quotes again - there’s this persona that she’s created to infiltrate Peggy’s life, and go move into the Griffith and live next door to her.

So she’s playing this sweet, innocent, naïve, a bit dim, girl and in upcoming episodes, we get to see who she is without that character on top of her, and there’s a real darkness. In the last episode, The Iron Ceiling, we have this really great flashback to the Red Room in Russia and her training, and how she became the woman she is now and there’s a real darkness to her. There are similarities between the two, but in terms of playing them, it actually feels very different to me, even though they’re both evil.

TVF: Maybe a stupid question but is it more fun to play the heroine or the villain?

BR: I’m having a ball playing the villain these days. I don’t know how I’m going to go back to doing anything else. I don’t know how. The fun part about it is thinking of them not as villains. Dottie’s just doing her job. She’s doing what she’s supposed to do. She’s not a bad guy. She’s just taking care of what she needs to take care of, same as Rose. That’s how I look at them.

TVF: When you have a series of roles like this, even White Collar was not really that long ago, do you ever think about like being typecast?

BR: Well, this is very new to me. Before this, I usually played more heroines, I played more ingenues, and this, I don’t know if it’s a coincidence or is it saying something about me, I don’t know, but I’m having so much fun that I’m not going to question anything.

Jane the Virgin Season 1 airs Mondays at 9/8c on The CW.