The wait is on, and the excitement is real – Slow Horses season 5 is coming, and fans of Apple TV+’s sharp-witted spy thriller can’t wait.
Here’s everything we know about Slow Horses season 5, including plot details, returning cast members, and what’s next for Slough House.
When Will Slow Horses Season 5 Be Released?
Though Apple TV+ hasn’t officially dropped a release date, the timeline is looking clear. Given the show’s unique production cycle – where multiple seasons are being written, filmed, and edited simultaneously – season 5 is right on track.
Reports confirm that filming has wrapped, which means it’s just a matter of time before we’re thrown back into the chaotic world of MI5’s most underwhelming (but surprisingly effective) spies. If all goes as expected, we’ll likely see Slow Horses return in early September 2025.
Who’s Returning for Season 5?
The heart and soul of Slow Horses is its stellar ensemble, led by the incomparable Gary Oldman as Jackson Lamb. His whiskey-soaked, brutally sharp performance has made him one of the best antiheroes on television. Alongside him, expect to see:
Jack Lowden as River Cartwright, the ambitious MI5 agent still trying to prove he’s not just a “Slow Horse.” Kristin Scott Thomas as Diana Taverner, MI5’s icy Deputy Director who always has her own game plan.
Saskia Reeves as Catherine Standish, Lamb’s former secretary with a troubled past. Rosalind Eleazar as Louisa Guy, still grappling with the emotional wreckage of her past missions.
Christopher Chung as Roddy Ho, Slough House’s tech genius and resident egoist. Aimee-Ffion Edwards as Shirley Dander, a volatile agent with a penchant for trouble.
Ruth Bradley as Emma Flyte, the MI5 newcomer introduced in season 4. James Callis as Claude Whelan, Taverner’s new boss, adding another layer of bureaucracy and tension. Tom Brooke as J.K. Coe, the brooding and mysterious MI5 agent from season 4.
What Will Slow Horses Season 5 Be About?
Season 5 is adapting London Rules, the fifth novel in Mick Herron’s Slough House series. And if you thought past seasons put the Slow Horses through the wringer, you haven’t seen anything yet.
A wave of terrorist attacks has the UK on high alert, and Slough House finds itself pulled into the chaos. But as always, nothing is quite what it seems. While MI5’s top brass tries to control the narrative, Jackson Lamb and his team uncover a plot that could have devastating consequences.
With Roddy Ho playing a bigger role than ever, it seems his technical skills (and unbearable overconfidence) will be crucial this season.
And then there’s Lamb himself – tired, cynical, and constantly underestimated, but always one step ahead. Expect his brutal wit and unorthodox methods to be put to the test like never before.
Why Is Slow Horses Still One of TV’s Best Shows?
Few shows manage to balance sharp humor, gripping espionage, and character-driven storytelling as well as Slow Horses. It’s not just another spy drama – it’s a show about failure, redemption, and what happens when the forgotten underdogs get their shot at making a difference.
And with season 4 proving that the series isn’t slowing down, season 5 has all the ingredients to be one of 2025’s must-watch TV events.
Final Thoughts: Slow Horses Ride Fast!
If Slow Horses season 5 keeps up the show’s impeccable track record, we’re in for another darkly funny, intensely thrilling season.
With a likely September 2025 release, a stellar returning cast, and a story that promises even more high-stakes espionage, the anticipation is at an all-time high. Whether you’re here for
Gary Oldman’s legendary performance, the razor-sharp dialogue, or the unpredictable twists, one thing’s for sure – Slough House is far from finished.
About Slow Horses
Slow Horses is a spy thriller television series based on the Slough House series of novels by Mick Herron. The series premiered on Apple TV+ on April 1, 2022.
Slough House is an administrative purgatory for MI5 service rejects who weren’t outright fired, and those consigned there are known as “Slow Horses.” They’re expected to endure dull tasks and occasional mental abuse from their miserable boss, Jackson Lamb, who expects them to quit out of boredom or frustration. And yet the Slow Horses somehow get involved in investigating schemes endangering Britain.
The series has aired 3 seasons so far and has been renewed for season 5.
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