It's a-coming... Peter Capaldi will exit Doctor Who this Christmas, and he's described his final scene as "beautiful" and "emotional".

Speaking to Digital Spy, Capaldi confirmed that he shot his regeneration scene on his last day of filming.

"It was great, it was lovely, because we spent the whole day doing it, and it's quite a big scene, and so we didn't short-change it," he said.

"Obviously it's emotional – because you're also saying goodbye to the people that you've been working with for nearly four years and that's tough.

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"Also, a lot of people came to visit – a lot of people decided that that was a great day to come and see what was happening! But I didn't mind that. It was lovely."

Of the scene itself, he added: "I felt Steven [Moffat] had written something very beautiful, and very right for my Doctor, so I was just happy to try and do my best with it."

Pearl Mackie will return to Doctor Who for Capaldi's swansong, in what will be her final appearance as companion Bill Potts.

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"I think what often happens in the show – and perhaps in shows generally – is that if characters are saying goodbye to each other, they often articulate those emotions better than the actors, as human beings, do," Capaldi suggested.

"So we often say goodbye to each other through the lines that the characters use – the characters and their scenes become avatars for our own feelings. So yeah, it is emotional, all of us felt that."

Series boss Moffat will also exit Doctor Who this Christmas, though told us that he resisted putting any of his own feelings about leaving the show into the festive special.

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"There is no element of autobiography in writing Doctor Who – how could there be?" he said. "So there's nothing about my feelings about leaving the show in what he says. You write the scene."

Doctor Who will return to BBC One this Christmas with 'Twice Upon a Time', in which our current Doctor (Capaldi) teams up with his very first incarnation (David Bradley).

The series is then expected to resurface in autumn 2018, with Jodie Whittaker as the new Doctor.

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