Coleman told TV Guide: “…the TARDIS and Clara have a relationship. It’s something that’s running through the series. Instead of it being like, “Does so-and-so like Clara?” The TARDIS and Clara have a bit of a face-off. So, the Doctor is obviously bringing back somebody new. I think we’ve done a whole additional content scene of me talking to the TARDIS, and the TARDIS is making fun of Clara. They kind of have an argument. They’ve got a relationship individual to the Doctor where they have a dialogue.”

Discussing the new TARDIS set, the actress commented: “It was strange because obviously it was a brand-new TARDIS, so it was a set that nobody’s ever used before or seen before at this point. But this is where you’re going to be for however many [of] the next couple of seasons or years, so it’s like mine and Matt’s new place. For him, he was running up and down all the stairs like a giddy kid who got his toy back. We didn’t actually have the TARDIS for the first four months of me shooting because it was still being built. So it was pushed away in a dark corner and cordoned off so nobody could go in and look at it.”

Coleman is current filming the show’s 50th anniversary special.

> Catch up on all the 50th Anniversary Special news and rumours so far in our summary.

Who or what do you think Clara is? Let us know below…

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> Buy Series 7 Part 1 on DVD on Amazon.

Watch the Series 7 Part 2 trailer…