BBC America will debut Season 8 of Doctor Who with the feature-length episode "Deep Breath", airing Saturday, August 23 at 8:00pm ET. The episode ushers in an exciting new era for the show as Peter Capaldi (The Musketeers, The Thick of It) steps in to officially takes over the role of the Doctor.

This latest teaser introduces a Dalek villain, who is very intent on seeing deep into the Doctor's soul. Is this the return of Davros, leader of the Daleks? Or is this someone new? The Doctor's cybernetic adversaries will definitely play a part in the new season this summer.

Capaldi will be joined by Jenna Coleman (Death Comes to Pemberley), who returns as companion Clara Oswald, and Samuel Anderson (The History Boys, Gavin and Stacey) who joins the cast as Danny Pink, a teacher at Coal Hill School where Clara also works. Previously announced guest stars include Ben Miller (Primeval, Death in Paradise), Keeley Hawes (Line of Duty, Upstairs, Downstairs), and Tom Riley (Da Vinci's Demons).

Leading up to the premiere, Capaldi and Coleman will appear together in the US for the first time when they arrive in New York on Thursday, August 14 as part of the first ever Doctor Who World Tour. The largest promotional undertaking in the show's 50-year history, the tour will kick off in Cardiff, Wales before heading to London, Seoul, Sydney, New York, Mexico City, and Rio de Janeiro.

B. Alan Orange