I hope it continues to do well, I really do. Yeah, but I can't really feel any pressure for it because I've done it now, I've made it, so c'est la vie, what will be will be, it's out of my control. But I think it's a great episode and it will be a nice way to spend it with someone.

"Is it really? Blimey oh Riley. God, that's a long time, isn't it! It's whizzed by I suppose because we're very busy up in Cardiff, but, yeah it's been a wonderful two years, it's been a privilege to play it, I have to say, and it's been a great experience for me, it really has."

It's a very Christmassy Doctor Who, and I think that Stephen (Moffat) has interpreted and managed the spirits of the Doctor. Particularly in the retelling of classical stories, anyway; if you look back at the classic stories that tend to hit us over Christmas, a lot of the great ones do pull at the heart strings.

Well we filmed it over about three/four weeks, in Wales of course, and so that was lovely because I was able to come home and see the family. It's challenging in so many ways because I'd never done any green screen stuff either, so all the sleigh/carriage stuff, the flying scenes ... when you're just in a room with a fan and having to scream on tap, you know, it was sometimes quite wierd. But lots of fun, cos I was in the carriage sometimes with Matt, and sometimes with Michael Gambon and so we had a really good laugh.

I cannot thank them enough, the whole Doctor Who family have been brilliant at making me feel very welcome and making me feel like I could do this. Matt is so energetic and so enthusiastic, and I kept thinking I when was doing scenes with Sir Michael Gambon, "how has this happened, how am I acting here across from Dumbledore" - it was just a very surreal moment.

This is my debut, and for it to be such a typically Welsh show, I think that was part as well in making me feel so at ease, because most of the crew are Welsh-based. Yeah, it was really, really lovely and I've got great memories of it and I don't think I could have done it without everyone being involved.

The special I thought was lovely, it was very, very, very Christmassy, it was snowy, based on A Christmas Carol, so can't get more Christmassy! One man has the power to rescue everybody, but he's Michael Gambon, a very Scrooge type, so the ghost of Christmas past, who's the Doctor, comes in and tries to make him see the error of his ways. I loved it, quite warmed my heart!