Jodie Whittaker
On 16 July 2017, Whittaker was announced as the Thirteenth Doctor in the science fiction television series "Doctor Who"; she is the first woman to play the title role. She had previously worked with incoming "Doctor Who" showrunner Chris Chibnall on "Broadchurch". She admitted that she had to "tell a lot of lies" after being cast to keep the information secret and used the codeword "Clooney" when talking about the role. She urged fans not to be afraid of her gender, saying ""Doctor Who" represents everything that's exciting about change. The fans have lived through so many changes, and this is only a new, different one, not a fearful one." Chibnall said that he always wanted a woman for the part and that Whittaker was their first choice.
Journey's End (Doctor Who)
One significant feature of this episode is the creation of another Doctor. Unlike the multiple Doctors of stories such as "The Three Doctors", "The Five Doctors" and "The Two Doctors", where his previous incarnations were played by actors or depicted in old footage, this Doctor is identical in appearance to the Tenth Doctor. In the accompanying "Doctor Who Confidential" for this episode, Davies explains "This is so busy and so "mental" and so epic and universal in scale that of course you need two Doctors to solve it." Phil Collinson, Graeme Harper, and David Tennant discuss the use of the double, a musician named Colum Regan who is a very good physical match for Tennant. Collinson explains that while with an unlimited budget they would use Tennant in every shot, "we only have a certain number of effects shots where you can see the two Doctors together, so we have to pick those carefully."