I loved playing Walternate because he was completely the same character, version 1985, and then it developed in such a different way, physically and mentally. So, to be able to play that, in the same television series, as playing the other ones was a fantastic gift for me.

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

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

You basically go in animation and it's all in the imagination. There aren't even pictures to look at. You usually go in there and work with whoever the director is to create this voice and this character.

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

My last two characters have been Denethor and Walter Bishop. Both will be hard acts to follow. That sits in the hands of my managers, at present. I just have no idea what's going to be offered to me.

'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.