You're always working with the relationships. It's pretty demanding, but then again I love that.

I have a very special love for all of those actors [in Fringe] and I'll miss them.Over the five years, we were given the chance to develop some pretty close bonds, both with our characters and personally, and we did.

It was wonderful to be able to play a character who had so many colors and who was able to play comedy, to play incredibly vulnerable, which he did a lot of the time, to play the love story, and to play the relationship with the son, which is quite unusual. That's a gift to me, as an actor.

I'm truly grateful to the writers of Fringe for giving me that because, over the years, when I've spoken about the character with them, I've always felt that this would be the perfect way to end and complete his journey, and to complete the journey of this series, and they gave it to me.

I always loved the challenge. When something new happened, I always used to get quite excited.

Lord Of The Rings fandom was massive, worldwide, entrenched. Generally it had been part of the fans' life all their life, because they had it read to them as children; they'd become Tolkien students.

The international reach of Fringe still catches me by surprise a bit, at times. Also, I was given the gift of a character that is every actor's dream. So, you combine those two factors and it's been an incredibly memorable five years.