Slow Horses season 6 wraps filming as Gary Oldman teases Fall 2026 return on Apple TV+

Slow Horses season 6 has officially wrapped filming. Gary Oldman confirmed the news in late October 2025. The espionage thriller is set to premiere on Apple TV+ in Fall 2026. This marks the beginning of the final stretch before fans get intense new adventures from Slough House.

Filming Complete: What Gary Oldman Just Revealed

The legendary actor confirmed that all principal photography finished recently. Gary Oldman shared the exciting news in interviews promoting the show. He revealed that playing Jackson Lamb through six seasons remains his dream role. The actor expressed gratitude for the opportunity to bring this complex character to life repeatedly.

Post-production work is now underway at Apple TV+ facilities. Editors and visual effects teams are polishing six new episodes for 2026. The streamer has never missed its seasonal release windows. Given the Fall 2026 timeline, fans should expect the first episode around September or October. This continues Apple’s impressive track record with the series.

“Despite all the changes, it does seem as though Slow Horses season 6 is on track to be released in the Fall of 2026.”

The High-Stakes Plot That’s Coming Your Way

Season 6 sees Jackson Lamb and the slow horses in a desperate fight. Apple TV+ released an official teaser after Season 5’s finale revealing major plot points. A stolen file containing the team’s names puts them all in mortal danger. The spies must go completely underground to survive.

Diana Taverner, played by Kristin Scott Thomas, orchestrates a revenge plot. She’s erasing Slough House from official records to hide everything. The agents face their most lethal challenge yet. They’re not just hunted—they’re targets marked for elimination. Betrayal, bombs, and breathtaking action sequences define the upcoming season.

The preview teased meetings between River Cartwright (played by Jack Lowden) and his father Frank Harkness. Hugo Weaving returns to complicate matters further. Classic Slow Horses dark comedy moments balance the intense danger perfectly.

Cast Returns + Story Details Breakdown

Character	Actor/Actress	Status for Season 6
Jackson Lamb	Gary Oldman	Confirmed returning
River Cartwright	Jack Lowden	Emmy-nominated, returning
Diana Taverner	Kristin Scott Thomas	Central antagonist role
Frank Harkness	Hugo Weaving	Guest appearances confirmed
Supporting Cast	Saskia Reeves, Rosalind Eleazar	All returning members

The season adapts two complete novels from Mick Herron’s acclaimed series. Joe Country focuses on secrets within Slough House and revenge plots. Slough House, book seven, raises stakes to apocalyptic levels. Brexit and political upheaval create the perfect backdrop for espionage chaos. The combined narratives deliver six explosive episodes.

What Makes This Wait Worth It

• Six episodes of elite spy storytelling guaranteed to shock viewers.
• The show won both Emmy and BAFTA awards for exceptional quality.
• Apple TV+ gives this series unlimited resources and creative freedom.
• Each season raises stakes—Season 6 promises the most dangerous yet.
• Gary Oldman’s performance as Lamb defines prestige television acting.

The Slow Horses production team moves with incredible speed. They wrapped Season 5 filming and announced Season 6 renewals within weeks. That same efficiency applies here. By Fall 2026, all editing, color grading, and sound design will be perfected. Apple’s post-production standards ensure movie-quality results.

When Exactly Should You Expect New Episodes?

The exact premiere date hasn’t been announced by Apple TV+ yet. However, patterns suggest late September to early November 2026 is most likely. Season 5 premiered on September 24, 2025. Previous seasons followed similar fall windows. Apple typically releases two episodes on premiere day, then drops one episode every Wednesday.

Production velocity suggests October 2026 is the sweet spot. This gives the editing team plenty of buffer time. It also positions the finale near November, maximizing Awards season buzz. Gary Oldman and Jack Lowden could attend major ceremonies. The strategy has worked brilliantly for Apple’s strategy.

Meanwhile, Season 7 is already in early development. Apple TV+ renewed it alongside Season 6 greenlight. Filming is expected to begin by late October 2025 or November 2025. Gary Oldman confirmed Season 7 deals during interviews about Season 6 wrapping.

Will This Continue the Show’s Winning Streak?

Every Slow Horses season has delivered critical acclaim consistently. The show pulses with authentic spy drama meets darkest humor. Season 6 promises to shatter previous records for intensity. The two-book adaptation means richer storytelling than typical season arcs.

Fans shouldn’t worry about quality declining with bigger ambitions. Gary Oldman, Jack Lowden, and Kristin Scott Thomas elevate every scene. Director James Hawes returns for all six episodes. This consistency ensures filmmaking at the highest levels. The teaser footage shown to press was absolutely stunning visually.

Mark your calendars for Fall 2026. The Slow Horses are coming back meaner, faster, and more desperate. Jackson Lamb will return to torment MI5 once again. Apple TV+ has another trophy-worthy season waiting. Are you ready for the most dangerous game yet?

Sources

• Screen Rant – “Slow Horses Season 6: Confirmation & Everything We Know”
• Decider – “‘Slow Horses’ Season 6: Premiere Date, ‘Joe Country’ And ‘Slough House’ Book Info”
• TV Guide – “Slow Horses Season 6: Plot, New Cast Members and More”

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