
Peter Capaldi has revealed he left Doctor Who in 2017 because he disagreed with the planned future direction of the show.
Peter Capaldi explained his reasons for leaving his role as the Doctor during an interview with Tom Simons on the show ‘100 Questions’. He was asked directly why he chose to stop playing the character.
I was worried things weren’t going to work out, especially since everyone I’d been working with was leaving,” he explained. “People like Jenna and Steven were moving on, and even Brian, the producer, was leaving – and those were the people who really made the job enjoyable and successful for me.
Capaldi explained they’d discussed the show’s future, but he wasn’t convinced it was the right path. He also worried he wouldn’t be able to bring anything fresh to the table.
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Capaldi described filming his final scene as quite sad, but he also feels that the impact of regenerations has lessened over time because there have been so many of them.
Honestly, I think the show has had too many regenerations,” he explained. “I enjoy all the Doctors, but there are so many now that each regeneration feels less impactful. When I was a child, the first time it happened, it was a huge surprise – mysterious and strange. That sense of mystery is really at the heart of what makes the show special.
Capaldi explained that the idea of regeneration is central to the show’s appeal. It draws viewers in on a deep, almost instinctive level because it features the main character both dying and being reborn.
He explained that this level of intensity isn’t seen on other shows, but pushing characters to their limits is crucial because it creates a really strong theme of mortality and loss.
When Simon pointed out the surprisingly dark tone for a family program, Capaldi responded, “It is, but it’s also magical. That combination of darkness and magic is what makes the show special.”
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Capaldi has recently discussed his time on Doctor Who, and previously shared that he believes the show has grown too large. He explained that it became ‘very, very big,’ a departure from the feel of the show he originally enjoyed.
It changed a lot,” he explained. “I think the demands of the role grew – there was just more to do. It used to be that actors like Jon Pertwee or Tom Baker would spend most of the year filming, and then a little time promoting the show. But now it’s different.
Honestly, it didn’t feel like the BBC was suddenly making a big, dramatic statement, or that some corporate image needed urgent protecting. It just… was. It lacked that sense of forced importance, which I appreciated.
The show was popular with some children, but others simply weren’t interested, preferring football or eventually losing interest altogether. It unexpectedly grew into something significant, though more as a business opportunity than a cultural phenomenon.
Since finishing his role as Doctor Who, Peter Capaldi has been in several popular shows and movies. These include James Gunn’s The Suicide Squad, Black Mirror on Netflix, and Devil’s Hour on Amazon Prime Video. He most recently appeared in season two of the Apple TV+ drama Criminal Record.
You can now watch Doctor Who on BBC iPlayer. For a comprehensive look at the show, check out our story guide, featuring reviews of every episode from 1963 to the present day, along with details on the cast and crew, behind-the-scenes facts, and exclusive content from the TopMob archive.
Don’t miss out! Add Doctor Who to your watchlist with the TopMob ‘What to Watch’ app. Download it today for daily TV suggestions, articles, and much more.
Authors

James Hibbs writes about TV dramas for TopMob, covering shows on streaming services and traditional channels. Before becoming a writer, he worked in public relations, first at a business-to-business agency and then at the TV production company Fremantle. He has a bachelor’s degree in English and Theatre Studies, as well as a journalism diploma.
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2026-06-17 13:35