As one of the most iconic British TV characters, Peter Capaldi is hardly able to shy away from fame but that doesn't mean he's eager for dizzying levels of 'exposure'.
Peter, 67, is best known not only as a Doctor Who legend but also as Malcolm Tucker in cult comedy The Thick of It.
However, he confessed on BBC's Sunday With Laura Kuenssberg that he turned down the chance to appear on The Celebrity Traitors.
The four-time Bafta winner explained: 'I think there's a level of fame that... I think it propels you into the public eye, at a level of exposure that I don't really want.
'I like doing, you know, it's like doing my music things - it's very difficult for people in that business to understand that you want to keep it small.'
Despite his huge success, Peter stays fairly out of the spotlight where possible and has denied any possibility of returning to Doctor Who, too.
He added: 'People keep saying to me, why don't you do a bigger tour, or why don't you do a bigger release, or why don't you promote this more?
'And I don't... I'm not doing it to be famous.'
This doesn't mean he refuses all huge opportunities, taking on the role of the 12th Doctor in the long-running BBC sci-fi series.
He admitted he had a 'little regret' that he had left the role too early, sharing it was 'great fun' but the 'pressure is quite intense'.
'You're sort of on all the time and you don't want to disappoint anyone because even though I'm not Doctor Who, if people are meeting me they'd rather meet the version of me that is Doctor Who,' Peter shared.
Acknowledging how important the character is to fans around the world, Laura asked if he 'tries not to let them down'.
'Yeah, because I'm quite miserable and melancholic, really,' he joked, adding: 'And that was, that was one of the big changes in my life, I guess, which happened quite late, was I'm quite miserable really, but I thought you can't be miserable if you're Doctor Who.
'You can't because you would disappoint people so I have to become cheerful all the time.'
The Glasgow-born actor stepped away from Doctor Who in 2017 with Jodie Whittaker becoming the 13th Doctor and making history as the first woman in the role.
Ncuti Gatwa, who took over from David Tennant's return, voiced similar issues with the role as Peter after leaving.
He also told Laura in a previous interview: 'My body was tired. It takes a lot out of you. Physically, emotionally, mentally. It was time.'
The Traitors has proven to be a runaway hit for the BBC, both for the celebrity version and the regular version.
The first series of The Celebrity Traitors aired on the BBC last autumn, with its nail-biting finale hitting a peak of 15.4 million viewers, according to the broadcaster.
It featured a star-studded cast including actors Celia Imrie and Nick Mohammed, singer Paloma Faith, author and actor Stephen Fry, broadcaster Jonathan Ross and comedian Alan Carr, who went on to win as a Traitor.
The spin-off series, hosted by Claudia Winkleman, brought in an average audience of 14.9 million people during its run - the biggest TV audience of 2025.
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