Slow Horses poster

Spy thriller · Literary adaptation

Where to watch Slow Horses in the U.S.

MI5's rejects, their foul-mouthed boss and the cases nobody wanted them on.

Season complete Apple TV Verified Editor reviewed

Artwork via TVmaze · © its respective owners

Quick answer · Season 6

Slow Horses season 6 ran from September 16, 2026 to October 21, 2026 on Apple TV (6 episodes).

When does Slow Horses season 7 come out?

Apple TV has not announced a date for Slow Horses season 7. Season 6 ended on October 21, 2026. Season 7, adapted from Mick Herron's Bad Actors, has already finished filming and will again have six episodes; star Christopher Chung says the plan is a 2027 premiere, and Apple has renewed the show through season 8. Jack Lowden (River Cartwright) is listed in some season 7 cast reports, but after the season 6 cliffhanger, where River is poisoned, his return has not been officially confirmed; Varada Sethu and Tuppence Middleton join the cast.

Source: Screen Rant, Variety (season 7 cast); checked October 22, 2026.

U.S. premiere
September 16, 2026
Where
Apple TV
Time
9:00 p.m. ET (eve before)
Episodes
6
Finale
October 21, 2026

Full season 6 episode schedule

Based on a book? YesSlow Horses is based on Slow Horses by Mick Herron.See the book and reading order →

Where to watch Slow Horses season 6 in the U.S.

Where to watch Slow Horses season 6 in the U.S.
WhereHowWhenNotes
Apple TV Streaming, weeklySubscription – Wednesdays Episodes are dated Wednesdays. Just Jared reported episode 1 became available at 9 p.m. ET (6 p.m. PT) the evening before; later episodes are expected to follow the same timing. [1][2]

About Slow Horses

Based on Mick Herron's Slough House novels, Slow Horses follows a department of disgraced MI5 officers exiled to paperwork under Jackson Lamb, who keep getting pulled into real operations anyway. It is an Apple Original and streams only on Apple TV.

Season 6: Six episodes released weekly from September 16 to October 21, 2026. Just Jared reports the season draws on Herron's Joe Country and Slough House.

  • Originally from: Apple TV (Apple Original) (first aired April 1, 2022)
  • Based on: Mick Herron's Slough House novels
  • Cast: Gary Oldman (Jackson Lamb), Jack Lowden (River Cartwright), Kristin Scott Thomas (Diana Taverner), Saskia Reeves (Catherine Standish)

All seasons

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Sources

We check each date against the sources below. If they disagree, we say so rather than picking one.

  1. Slow Horses season 6 episode release schedule
    TheWrap Press Checked
  2. What time does Slow Horses season 6 come out?
    Just Jared Publisher Checked
  3. Slow Horses episode and cast data
    TVmaze (CC BY-SA) Data Retrieved
  4. Slow Horses (TV series)
    Wikipedia Publisher Checked

Update history

  1. Added a season 6 FAQ on which books the season adapts.
  2. Hub published mid-season.

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