I fell in love with the possibilities of telling the story in the future, and married that quickly.

Another part of the challenge was to bring back things that you've forgotten about and maybe some things you haven't forgotten about, recontextualize them and have the series make sense.

Jeff always says, "In the cinema, everybody goes to sci-fi. Those are the biggest movies. But, in television, nobody wants to touch it with a barge pole." It's strange. I think it's because maybe there's a legacy of television shows that depicted sci-fi in a certain way that turns off a lot of viewers, so maybe there's a negative connotation.

I'm not interested in leaving it open-ended. That would just cause me frustration. I wouldn't be satisfied. What's really cool about Fringe, and one of the things we did do right, was that the way we chose to tell the story was that, with every season, there was a closure and then a new chapter. That allowed us to actually make the closure.

It's so funny because, when the other world was being hatched and conceived, I just kept hearing, "Don't do that! That's a huge mistake! People love your characters. Why go to these new ones?" And I was like, "No, we can do this! I'm invested. Why wouldn't they be?"

We can't say anything, but just remember that, on Fringe, nothing is as it seems. There's always a little more to the story behind the story. He's definitely a large part, going forward. A lot of things will come full circle.

You realize that everything is a moving budget, and sometimes you've got to borrow from Peter to pay Paul, to make it happen.