I'm a character actor, so as a character actor, I'm always looking for something interesting.

'Fringe' is essentially a love story, so the scenes where Walter had close connection with Peter, but also with Anna's character or Jasika's character, were very special to me.

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

I've played a bunch of different versions of Walter [from "Fringe"]... I loved it when he was being random, which was probably the original version of him, more than anyone else. I loved doing Walter then, and all of the different mental states that we've played.

I love having played Walter because I suppose any actor brings a certain aspect of their own personality to their work, and I had a fairly broad canvas to paint on with the different versions.

We didn't know until really quite late in the piece how Joel [Wyman] would finish it off.

Doing animation is great fun. It's like a different world.