The latest - short - instalment of the BBC's scifi drama will air as part of charity fundraiser Children in Need this week, with Scotland's David Tennant continuing to play the 14th Doctor after taking over from Jodie Whittaker after a suprise twist.
He's returning to the role he played to great acclaim from 2005–2010, as the 10th Doctor, but will soon make way for his fellow countryman Ncuti Gatwa.
The Sex Education star's first episode proper is expected to be screened over the festive season, when he will become the latest Scot to play a part in the journeys of the Tardis through space and time.
Here are some of the most important, since the first epidode was broadcast in 1963.
5. Peter Capaldi
Previously best known for playing sweary spin doctor Malcolm Tucker in Armando Ianucci's political satire 'The Thick of It', Peter Capaldi played the Doctor from 2013–2017. The Glaswegian was the 12th incarnation and has previously won an Oscar for his short film 'Franz Kafka's It's A Wonderful Life'. | Getty Images
6. Karen Gillan
Today Inverness-born Karen Gillan is one of the world's highest-grossing actresses, starring in the huge Jumanji and Guardians of the Galaxy franchaises. It was for her role as Amy Pond, the companion of Matt Smith's 11th Doctor, that she first found fame. She played the role from 2010–2013, winning multiple awards for her performance. | Getty Images for ReedPop
7. Ncuti Gatwa
Beginning his acting career at Dundee's Rep Theatre, Ncuti Gatwa was unveiled as the 15th Doctor Who in 2023, officially taking over the role in 2024. He made his big breakthrough in the hugely-successful Netflix comedy-drama series Sex Education for which he won a BAFTA Scotland Award for Best Actor in Television. | Gareth Cattermole/Getty Images
8. Steven Moffat
Born in Paisley, Steven Moffat is a television writer and producer who was head writer and executive producer on Doctor Who, from series five in 2010 to series 10 in 2016/17. Other programmes he's been involved in include Press Gang, Coupling, Sherlock and Dracula. | Getty Images