If I talk about Charles Dance I am talking about something else, something I operate and wind up and have to make an impression with and use to transmit someone else's screenplay.

Your senses are reeling all the time. Finally you find something to write and the very next day you go out and see something else which totally contradicts what you've written and every conclusion you've come to.

It starts with the writing - which is really, really good. And the production values are phenomenal. HBO and Sky have spent money on it, and you get what you pay for. This has money put into it properly - not lavish amounts - but as each season is successful, they maintain the money that's being spent to maintain the quality.

But the quality of writing in the series [game of Thrones] is paramount. That's probably why all of us are involved in this and all of us are quite so loyal to it, because we don't have to expend a lot of energy trying to make a silk purse out of a pig's ear. The quality of the writing is really good, and that's what makes playing a character so enjoyable, whether he's heroic or villainous.

You have to attempt to be objective about yourself.

I've done a couple of fan conventions and [the fans] are legion. They're rather like Star Wars or Star Trek fans. We're very glad of the loyal fans - but it's a strange way to spend your life, dressing up like Star Wars. At least we change our costumes - I don't spend 40 years dressed up as Tywin Lannister.

There is a huge fan base, they're very knowledgeable and very loyal. I was astonished - before I started working on the series I didn't know anything about Game of Thrones. I hadn't heard of the books. When it started going out, people were coming up to me in the street saying [fake cockney accent] "oh, Game of Thrones, f------ wonderful.