I didn't drop into the mannerisms of another version of the character, but I guess I was pretty alert to that.

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

There's a certain pattern that exists with geniuses - an eccentricity, a lack of social graces and an inability to really communicate with mere mortals.

I think the glue that held Fringe together was the relationships.

'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.

Working in television is very hard. I think people know that.

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.