Doctor Who Series 8, Episode 1 will land on iTunes on 31st August, with a brand new Doctor at the controls of the TARDIS. Peter Capaldi debuts as the Twelfth Doctor alongside Jenna Coleman as Clara in a series of twelve adventures beginning with a feature-length episode set in Victorian London. Also featuring four Doctor Who Exclusives where Steven Moffat, Jenna Coleman and Peter Capaldi give an insight to the world of making Doctor Who, as well as two guides to the world of Doctor Who hosted by Peter Davison. Each new episode will also feature a special look behind the scenes of that week's adventure in space and time. Guest stars this season include Tom Riley, Hermione Norris, Foxes, Frank Skinner, Zawe Ashton, Michelle Gomez, Ben Miller and Keeley Hawes amongst others.