Getting older is a struggle. I always feel that just under the surface of acceptance and enjoyment of the ageing process is a terrible hysteria just waiting to burst out.

But obviously, things have changed in many ways since the '50s, when the show is started, in terms of sexuality, and how much access we have to images of it and information about it. But, the same problems always apply. It doesn't matter whether we know a lot more about sex now or if there's a lot more access to it. The same problems of intimacy, of dealing with other people, of connecting and being vulnerable with other people, which is what the show is ultimately about, still applies now, I think.

In terms of how prudish Americans were in the '40s and '50s, I have absolutely no idea. I do know about the character that I play. And I don't think it's about being prudish. I think it's about trying to balance a sense of control in this man's life.

Although my family - parents and sister - all work in the personnel management business, their real passion is performing, amateur operatic societies and so on.

I'm not a Tony Blair impersonator.

I remember someone said to me, "Never stand up when you can sit down, never sit down when you can lie down, never lie down when you can be asleep." Those are bits of advice that I haven't taken, really. I've done the opposite of them, but they have stayed with me.

When you look at all the miracles attributed to Jesus, they're all about change.