10:38 27 July 2009
Former Doctor Who actor John Simm is to reprise his role as the Master in hit BBC sci-fi dram.
The BBC confirmed that Simm will be seen in David Tennant's final episodes as the Time Lord this Christmas.
The BBC said: "At the close of series three we saw the Master gunned down by his wife and whilst lying in his enemy's arms, he refused to regenerate.
"The world believed he had died and The Doctor accepted he was the last of the Time Lords. But this is Doctor Who and you can't keep a good bad guy down!"
Simm had previously appeared as the Master in Russell T. Davies' 'Utopia', 'The Sound Of Drums' and 'The Last Of The Time Lords' in the 2007 series.
His return was rumoured after he was seen on the set of Tennant's final scenes. But the news was officially announced at the Comic-Con convention in San Diego.
It is also believed that Billie Piper, Freema Agyeman and Catherine Tate will also return for the Tennant's s final episode.
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