Alex Kingston will reprise her role as River Song in this year’s ‘Doctor Who’ Christmas special, the actress has confirmed. It will be the first time the character has met Peter Capaldi’s incarnation of the Doctor, after last being seen in season seven opposite Matt Smith.

Alex KingstonAlex Kingston plays River Song in ‘Doctor Who’.

“To be honest, I did not know whether River would ever return to the show, but here she is, back with the Doctor for the Christmas special,” Kingston said, while also hinting that the upcoming special will contain more "surprise guest castings”.

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“I met Peter for the first time at Monday’s read through, we had a laugh, and I am now excited and ready to start filming with him and the ‘Doctor Who’ team,” the actress added. Showrunner Steven Moffat has also teased fans over what they could expect from the characters this Christmas.

“The last time the Doctor saw her she was a ghost,” Moffat said. “The first time he met her, she died. So how can he be seeing her again? As ever, with the most complicated relationship in the universe, it’s a matter of time …”.

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Kingston first appeared as River Song in 'Doctor Who’s' fourth series. The character has made 15 appearances in the show so far, opposite both David Tennant’s and Matt Smith’s Doctor. The ‘Doctor Who’ Christmas special begins filming this week, while the show’s new series starts on BBC, September 19th.