Doctor Who Season Finale Teaser Video

A new preview clip has been released in advance of tomorrow evening'sDoctor Who season finale, The Name Of The Doctor.

The promo sees Jenna-Louise Coleman and Matt Smith talking about the episode's villains The Whispermen, interspersed with footage of the sinister baddies.

It also provides a glimpse of Richard E Grant as the Great Intelligence - plus footage of fan favourites Vastra and Strax in action.

Coleman says: "The finale is epic - it is such a treat for all of the fans."

And Smith adds: "I think throughout this season, we're building up to the revelation in the last episode - and then it kicks us on somewhere else."

The finale was accidentally leaked on DVD in the US.