The Doctor (Doctor Who) Time Lords a fixed number of twelve regenerations, meaning that every Time Lord had a total of thirteen incarnations including the original. The plot of "The Time of the Doctor" involves the Doctor receiving a new cycle of regenerations from the Time Lords before his expected demise, triggering the regeneration into the Twelfth Doctor, played by Peter Capaldi. The origins of the programme were explored in the docudrama "An Adventure in Space and Time" as part of the 50th anniversary celebrations of "Doctor Who", which starred David Bradley as William Hartnell. Although Time Lords resemble humans, their physiology differs in
Peter Brachacki were obviously the same sets as were used for the Doctor's TARDIS, slightly redressed. The TARDIS interior was completely redesigned again for the 1996 "Doctor Who" TV movie, and the new series that began broadcasting in 2005. Even then the central console was retained, and the new television series includes the geometric patterns on the walls. In 2013 the BBC produced a docudrama called "An Adventure in Space and Time", depicting the creation and early days of "Doctor Who", as part of the programme's fiftieth anniversary celebrations. Brachacki appears as a character in the drama, played by actor David Annen.