Sir Gary Oldman has revealed he played a cheeky prank on his Slow Horses co-star Kristin Scott Thomas by claiming their characters have a sex scene in an upcoming season.
The veteran actor plays Jackson Lamb opposite Scott Thomas’ icy Diana Taverner in the hit Apple TV espionage drama.
The cult show - which failed to do well at awards season this year despite critical acclaim - is based on the Slough House series of spy novels by British author Mick Herron.
Speaking at a Q&A at London’s Ham Yard Hotel, Oldman admitted he couldn’t resist teasing Scott Thomas, 65, about upcoming storylines when he realised she hasn’t read the books.
“I go, ‘Have you read book eleven?’” the 68-year-old recalled gleefully to presenter Edith Bowman.
“She goes, ‘No.’ I go, ‘Oh, they get together. There’s a sex scene.’”
Oldman then mimed the expression of disgust crossing Scott Thomas’ face, declaring: “The look on her face! She’s terrified!”
The Darkest Hour actor attended the Q&A with Slow Horses co-stars Christopher Chung (Roddy Ho) and Tom Brooke (J.K. Coe).
He revealed the cast have finished filming season six and are currently filming season seven.
Season five premiered late last year, with the final episode airing on October 29, 2025.
Teasing the audience about the flavour of the upcoming seasons, he said: “Season six is the dark season and season seven, when you see it, is the season Slow Horses grows up.”
As for the future of the show, the screen star gave a coy answer: “That’s going to be a conversation for Apple. It’s all subscription and viewer driven.”
Oldman also shared what he relishes about playing Lamb, a disgruntled MI5 agent overseeing a team of misfit intelligence agents at Slough House.
“The flatulence...” he began, laughing. “He smokes because you’re not supposed to, he drinks too much because it’s going to piss everyone else off.”
The Harry Potter star paused and added: “There’s something incredibly liberating about playing a character who really doesn’t give a f**k.”
He explained: “I think that’s partly what... when I’ve spoken to people, they say ‘We love Jackson Lamb.’ Well - what is it about him? They say it’s because he says things that we wish we could.
“There aren’t any social graces. It’s very sort of direct, he cuts through all the BS.
“He’s very protective of that small group, because he couldn’t stand all that elitism bureaucratic, red tape stuff.”
