The sixth season finale of Apple TV’s acclaimed series “Slow Horses,” featuring Gary Oldman, aired on 21 October. The espionage thriller, which has gained a devoted following since its debut in 2022, is adapted from Mick Herron’s “Slough House” novels. The series delves into the chaotic lives of a group of misfit British intelligence agents, often viewed as the underdogs of MI5, and their base of operations, the infamous “Slough House.”
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Gary Oldman portrays Jackson Lamb, the gruff and sharp-witted head of the Slough House crew. Alongside Oldman, the cast includes notable talents such as Jack Lowden, Kristin Scott Thomas, and Olivia Cooke, contributing to the show’s rich character dynamics. Throughout its six-season run, “Slow Horses” has captivated audiences with its sharp writing and intricate plotlines, culminating in a gripping unresolved finale this season, leaving viewers on the edge of their seats.
In this latest series instalment, the stakes have never been higher as the Slough House operatives find themselves hunted by lethal contract killers. This treacherous pursuit results in significant losses for MI5, leading to a tense and shocking conclusion that leaves many unanswered questions. Fans are now eagerly speculating about the future of the series, particularly regarding a potential seventh season.
Excitingly for fans, “Slow Horses” has already been renewed for a seventh season, with the announcement made in July 2025, even before the premiere of season five. Oldman recently discussed the challenges of maintaining momentum in a series like “Slow Horses,” highlighting the commitment required to deliver consistent quality. Speaking at the Edinburgh TV Festival, he commented on the long wait between seasons, emphasising the difficulty in balancing pacing with high standards.
Looking ahead, season seven will draw inspiration from Herron’s novel “Bad Actors.” The upcoming season promises to follow Jackson Lamb and his ragtag team as they embark on a mission to uncover a mole within the British government—an investigation that threatens to destabilise the state if left unchecked. This reveals a continuation of the high-stakes narrative that has defined the series.
Gary Oldman is confirmed to reprise his role as the irreverent Jackson Lamb. In interviews, he has expressed how timely the role was for him, noting Lamb’s unfiltered and straightforward nature as a significant draw for him as an actor. Additionally, James Callis is set to return as Claude Whelan, adding another layer of intrigue within the story as he embodies a character previously leading MI5.
However, the fate of some characters remains uncertain. The sixth season concluded with River Cartwright, played by Jack Lowden, in a precarious situation following a poisoning incident, leaving viewers anxious about his outcome. Moreover, the character Emma Flyte, portrayed by Ruth Bradley, met a tragic end in the last season, which had been planned since the early stages of her casting.
New faces will also join the ensemble cast for season seven, including Varada Sethu, Tuppence Middleton, and Merab Ninidze. Middleton’s previous collaboration with Oldman in “Mank” has generated buzz about their on-screen chemistry, sure to enrich the narrative further.
As for when fans can expect to see the next chapter of “Slow Horses,” Apple TV has yet to announce an official release date for season seven. Previous seasons have typically premiered in September, so viewers are hoping for a similar timeline for the upcoming episodes.
For those eager to catch up on previous seasons, all episodes of “Slow Horses” from seasons one through six are currently available for streaming on Apple TV, allowing fans to immerse themselves in the world of MI5’s most unconventional team. As anticipation builds for the next entry in this thrilling series, the dedication to characterisation and plot development continues to assure its position in contemporary television.