Matt Smith, David Tennant, John Hurt

The first trailer for the Doctor Who 50th anniversary special is a delightful trip through time.

The promo features glimpses at past Doctors and their companions, but no new footage from the upcoming episode. While details of the special are being kept tightly underwraps, it is known that Matt SmithDavid Tennant and John Hurt will all appear as The Doctor.

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The Doctor Who 50th anniversary special "The Day of the Doctor" airs Nov. 23on BBC America. Watch the trailer: