SO, WHAT'S IT LIKE WORKING TOGETHER?
DT: It's a nightmare. It's very, very difficult. Her flatulence is a big problem. [Laughs].
BP: [Laughs] It really is!
DT: We've had a laugh.
BP: Yeah, we have.
DT: We've had a really good laugh.
BP: Fortunately we get along. We all get along, and we need to, really, because it's long months and it's quite intense and we're shooting 13-hour days. You're thrown together all the time. I feel like I've made a friend for life.
DT: I hope so, yeah. It is weird, because we're the only two constants. Usually on a drama there's a bunch of you who go through the whole thing together, but... Noel and Camille come in and out.
BP: It's always nice to see them.
DT: It's always good to see them. But Billie's the only person I know I'm going to see every day.
BP: I see you more than I see my family, my boyfriend.
DT: That's all right.
BP: [Mockingly] And that's fine by me. I like it. I like it.
DT: That's fine. Just go with it. And luckily we get on and we've had a really good time.
THIS QUESTION'S FOR BILLIE. DID YOU LIKE PLAYING A POSH BAD GIRL IN NEW EARTH?
BP: Love it. Love the posh bad girl.
DT: You're going into Bad Girls to play a posh girl, aren't you?
DT: Actually that's not true.
BP: Do you think they'd want me? It was really fun. Actually, I was quite nervous because it was quite a departure from Rose and it was the first time in Doctor Who I'd played quite a lot of comedy, so I was quite scared. But also very excited. And I think it works OK. I like it. I think it's fun. I'd like to play many more... posh... bad girls.
DAVID, MY MUM AND MY BROTHER'S GIRLFRIEND, THINK YOU'RE REALLY SEXY...
DT: Oh, bless them.
BP: Women love you.
DT: It's all new to me, this.
BP: Women and men... remember the Pink Paper!
DT: Number one in the Pink Paper! Thank you very much. Brad Pitt, number two! David Beckham, number three!
HOW ARE YOU PLAYING TO THESE RADICALLY DIFFERENT DEMOGRAPHICS?
DT: With my knob out?
BP: [uncontrollable laughter]
DT: I don't know how to answer that. I'm just doing my job really. It's not something that even if you were aware of there was anything you could do about it.
BP: I think they were there with Casanova. That's when their obsession started.
BP: I know that, actually, because my mum's on the phone all the time and that definitely started when she saw you in Casanova. Now she's just like, 'Are you sat next to him?' [Laughs].
DT: Ahh, lovely Mandy.
BP: You don't think about it.
DT: How can you think about it? If you started playing to something like that, you'd immediately become unattractive to all these people who apparently find you attractive. It's a mystery to me, but I'm very, very proud of it.
DO YOU GET ANY ODD THINGS SENT TO YOU IN THE POST?
DT: Do you know, just the other day someone sent me a Tom Baker scarf. Full-length, knitted to perfection.
DT: The colours looked right to me as well.
BP: Well, you would know.
DT: I would know. Yeah, that was quite weird.
BP: But nice.
DT: Lovely! That someone sat down and did that!
BP: Yeah I know, it's special.
DT: Every stitch.
BP: We were filming in
DT: Yeah. Mine was minty. Everyone was a slightly different flavour.
HAVE YOU HAD LADIES' KNICKERS?
BP: I've had some ladies' knickers in the post.
DT: Have you?
DT: I dream of ladies' knickers in the post.
MY MUM'S GOT SOME FOR YOU.
DT: Has she? Send them round. [Laughs]
BP: Mandy'll be knock-knock-knocking at that door to give them to you. It's fine… we love lowering the tone.