Walter is incredibly complex. I do a lot of thinking about the work I do, and try to get the rhythms of scenes.

In Revelation 12, we see a pure, holy woman giving birth to a son - a corporate son who brings victory by the blood of Jesus, their testimony and sacrifice. My vision is to see that kind of church moving in the authority, the sacrifice and love of Jesus.

I suppose, when you start up in acting, you hope to be given challenges, and you always have dreams about the things you could do and couldn't do, but normally we get pigeon-holed a little bit, as we go on in our careers.

I remember when I read Walter, for example, six years ago now, I said, "This is the role for me." I said that to my family. There was something there that I knew was absolutely right, and that was just based on the character. That's when gut instinct comes into play. I know there are certain things I won't do.

We often get pigeon-holed as a tough guy, or whatever else. I've been pigeon-holed as a heavy and serious, and almost a baddy, but not quite a baddy, over the years of my work in television, particularly.

I'd never done anything that required a five-year commitment. To build a show that seems to have kept the imagination of the world so much was a bit otherworldly.

As actors, you don't actually need to know the future of the character. You just need to know the backgrounds.