Doctor Who - Cribbins is David Tennant's final companion

David Tennant's final Doctor Who companion has been revealed, and it's a familiar face to fans of the Time Lord.

Doctor Who boss Russell T Davies has said that Bernard Cribbins - who played Donna Noble's grandad - will be back at Christmas as a companion.

Davies added that it will be a packed end to the year, with a special in November and a two-parter at Christmas.

So does that mean Donna will be back too? And if so will she still be unable to remember her adventures?

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And internet rumours suggest other characters could be back too for Christmas, as the actors who play them have been spotted on the film set.

We don't want to give anything away, but it seems like the Tardis could be packed tightly before Tennant hands over the keys to a new actor.

But while those episodes are a long way off yet, there is a brand new one being shown on Saturday.

Source: BBC