PDH wrote:In New Who, probably.
But I think Nieto's right. Even if this is not based on the audio, those clips strongly imply that he's an imposter. Just the way he was talking, for one.
My money is on him being an imposter as well, because there's almost no way they would basically spoil it in the episode title if it was for real.
The only thing that makes me wonder is the rumors that have been going around that RTD promised that it would end with something shocking. Given this other "Doctor".. and a shocking ending, that I would assume ISN'T that he's really the Doctor.. what if the timelords are back?