Apple TV+ has confirmed that writer‑producer Will Smith, the guiding hand behind Slow Horses since its launch, will step away after the espionage drama’s fifth season, which arrives 24 September 2025. Smith, who has shouldered show‑running duties without the formal title common in U.K. productions, explained that the upcoming run “closes out certain storylines,” making it a natural hand‑off point. The streamer has already locked in seasons 6 and 7, enlisting His Dark Materials writer Gabby Chiappe and All Creatures Great and Small architect Ben Vanstone to steer those instalments in succession.
Season 5 adapts Mick Herron’s novel London Rules, keeping the established six‑episode format and opening with a double‑episode drop. Returning cast members include Gary Oldman, Jack Lowden, Kristin Scott Thomas and Saskia Reeves, with Ted Lasso actor Nick Mohammed joining as the Mayor of London. Filming wrapped earlier this year, and Oldman recently revealed that cameras are already rolling on season 6, signalling no pause in production momentum.
Apple’s faith in the property is buoyed by its consistent critical approval and strong viewership figures, factors that encouraged a rare two‑season extension last month. The series, produced by See‑Saw Films, has so far charted Herron’s first four Slough House novels, blending sardonic office politics with shadow‑warfare set‑pieces that helped earn multiple BAFTA and Emmy nominations. Smith’s scripts were often praised for preserving Herron’s gallows humour while expanding supporting roles; his departure therefore marks a significant creative switch but not an organisational crisis, given the orderly succession plan.
Oldman, who previously hinted at retirement after portraying dishevelled spymaster Jackson Lamb, remains contracted through at least season 6 and has lately downplayed an imminent exit, calling the role “too good to abandon yet” in recent interviews. Meanwhile, industry analysts point to Apple’s aggressive commissioning—seven seasons and a mooted spin‑off are now in play—as evidence of the platform’s desire to anchor its U.K. scripted slate around reliable franchises.
For audiences, the immediate takeaway is simple: Slow Horses continues at full gallop, but its original navigator is stepping off the saddle after delivering what he promises will be a satisfying mid‑series pivot.
