Sneak Peek footage of actress Jodie Whittaker ("Attack The Block") regenerating' as the first female alien 'Doctor Who', from the "Doctor Who: Christmas Special" that aired December 25, 2017:
"...'Doctor Who', produced by the BBC since 1963, depicts the adventures of a 'Time Lord' called 'The Doctor', who is an extraterrestrial being from the planet 'Gallifrey'.
"The Doctor explores the universe in a time-travelling space ship called the 'TARDIS'. Its exterior appears as a blue British police box, which was a common sight in Britain in 1963 when the series first aired.
"Accompanied by a number of 'companions', the Doctor combats a variety of foes, while working to save civilizations and help people in need..."
Click the images to enlarge and Sneak Peek "Doctor Who"..