One of the joys of this show [Dirk Gently's Holistic Detective Agency] is that each of those characters could be starring in their own show. It's only as the show goes on that you realize how they interconnect. They're all moving towards one another inexorably, to meet at a certain point.

You had to make everything much more truthful for the camera. With the stage it's a given that it's going to be theatrical.

Dirk Gently [from Dirk Gently's Holistic Detective Agency], needs a sidekick, as all good detectives do, and he gets this message from the universe that this guy, Todd Brotzman, played by Elijah Wood, is the guy to help him through this mystery. But of course, that doesn't really explain the breadth of it.

The whole nature of the show [ Dirk Gently's Holistic Detective Agency] is that everything is connected, and everything is interconnected. You have all of these strands with all of these characters, and you watch the characters interact and you wonder, "What do they have to do with each other? How does any of this link?"

We did every scene together, every day for four months, and it could have been a disaster, if we didn't get on, but we clicked straight away. Elijah Wood is just the nicest guy.

I'd seen Elijah [Wood], when I was a little boy, in The Good Son. And then, I was a huge fan of The Lord of the Rings. It took awhile to get over that whole, "That's Elijah Wood - Frodo, from The Lord of the Rings." I was a mega fan of that. I went to the all-day screenings of the director's cut, where you could see the really long versions of all three movies, in one day.

Like the Elizabeth I play, Queen Elizabeth is a monarch who actually moves with the times. She gets new information, assimilates it, and changes in order the fit in with the way the world is moving. I admire that.