If I had auditioned for 'Merlin' on magic alone, I don't think I'd have got it. Like any kid, I probably had a magic kit, but it's not something I ever pursued. I've never watched a magic show like David Copperfield or used him to base my character on, but I really like David Blaine and Darren Brown. They are doing wonders.
I read 'The Crystal Cave' book by Mary Stewart, and I thought it was a really, really interesting part of the legend, in which Merlin could enter into the cave with these crystals and see reflections of the future in them and learn how to use that and harness those powers for himself.
For me, one of my favorites, director-wise, is Tim Burton. I also really admire the work of actors like Sean Penn. He is probably my favorite actor because of his dedication and commitment to roles, and the ability to morph and change himself when he needs to. It's about dedication and commitment and a passion.
Because it was one of my favorites from the Arthurian legend, one of the things that I really enjoyed doing was the legend of the crystal cave. In my head, it was fun to imagine what it was going to look like because there was a lot of CGI involved, in seeing visions of the future reflected within crystals.
The big, big block in the Arthur/Merlin friendship is the status issue, that Merlin is the servant and Arthur is royalty, and in that time, princes did not socialize with their servants; that wasn't the done thing. It just so happens that their relationship, their friendship, is strong: they have been through the thick and the thin of it all.
When I think of Camelot, I think of the castle in France where we film, but I think it's wrong to lock it down to one place because it's all part of our imagination. They are legends for a reason. Their stories have endured for hundreds of years and, hopefully, they will for hundreds of years to come.
I think TV is a fantastic medium right now because of what you can do visually. It's phenomenal, and it's just getting better and better, but in a way, there's no beating the personal image you can create in your head, with those personal aspects, which you can only get from reading or radio dramas.
I cannot wait to come back to Glasgow. I know the place like the back of my hand. In fact, one of the jobs I had as a student was in Cineworld. And I was always at gigs in King Tut's, Nice 'n' Sleazy's and the Barras. I played Ultimate Frisbee down on Glasgow Green and pulled pints in O'Neill's on Queen Street.
Who wouldn't want to be wizard, at least for a day, as long as you didn't have the dilemmas and the situations that Merlin was thrown into. I'd be happy if you could actually use the powers to have a bit of fun and do something good for the world and maybe for yourself, whereas Merlin's kind of limited in that he has to look after Arthur.