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Slow Horses

2022– · Crime, Drama, Mystery · 6 seasons · ★ 8.1

Returning seriesApple TV+16
▶ Watch TrailerWhere to WatchSeasons

Synopsis of Slow Horses

In London, Slough House is an MI5 building where agents who have made serious mistakes, but not serious enough to be fired, are sent. Those who arrive there are called «slow horses», a play on the name of the place and on the expression describing someone who thinks and acts slowly. Their days are filled with dull, routine tasks, and the treatment from their boss, Jackson Lamb, played by Gary Oldman, is sloppy, rude and full of insults. Lamb hopes they will eventually quit out of boredom or frustration. Among them is River Cartwright, a promising agent demoted after a mistake in a training exercise. The series, adapted for television by Will Smith from Mick Herron's novels, streams on Apple TV+.

«MI5's most unruly spies are back and under attack.»

6seasons
36episodes
62 minper episode
8.1audience scoreTMDB · 1,074 votes
8.4IMDb rating162,097 votes
Latest episode aired

6x06 · El día del juicio final

October 21, 2026. No date has been announced yet for the next one.

Seasons of Slow Horses

Season 1Season 12022 · 6 ep. · ★ 7.9Season 2Season 22022 · 6 ep. · ★ 8.1Season 3Season 32023 · 6 ep. · ★ 8.3Season 4Season 42024 · 6 ep. · ★ 8.3Season 5Season 52025 · 6 ep. · ★ 8.2Season 6Season 62026 · 6 ep. · ★ 8.2

Cast by Slow Horses

Gary OldmanGary OldmanJackson Lamb36 episodes
Jack LowdenJack LowdenRiver Cartwright36 episodes
Kristin Scott ThomasKristin Scott ThomasDiana Taverner36 episodes
Saskia ReevesSaskia ReevesCatherine Standish35 episodes
Christopher ChungChristopher ChungRoddy Ho35 episodes
Aimee-Ffion EdwardsAimee-Ffion EdwardsShirley Dander30 episodes
Rosalind EleazarRosalind EleazarLouisa Guy29 episodes
Kadiff KirwanKadiff KirwanMarcus Longridge18 episodes
Ruth BradleyRuth BradleyEmma Flyte18 episodes
Tom BrookeTom BrookeJK Coe16 episodes
Jonathan PryceJonathan PryceDavid Cartwright14 episodes
Samuel WestSamuel WestPeter Judd13 episodes
Bally GillBally GillAgent Singh13 episodes
Chris ReillyChris ReillyNick Duffy13 episodes
Hugo WeavingHugo WeavingFrank Harkness12 episodes
James CallisJames CallisClaude Whelan12 episodes
Freddie FoxFreddie FoxSpider Webb11 episodes
Naomi WirthnerNaomi WirthnerMolly Doran11 episodes
Joanna ScanlanJoanna ScanlanMoira Tregorian11 episodes
Dustin Demri-BurnsDustin Demri-BurnsMin Harper10 episodes
Olivia CookeOlivia CookeSidonie 'Sid' Baker8 episodes
Chris CoghillChris CoghillHobbs8 episodes
Sophie OkonedoSophie OkonedoIngrid Tearney7 episodes
Antonio AakeelAntonio AakeelHassan Ahmed6 episodes
Ṣọpẹ́ DìrísùṢọpẹ́ DìrísùSean Donovan6 episodes
Eliot SaltEliot SaltSarah Dunn6 episodes
MyAnna BuringMyAnna BuringJane6 episodes
David WalmsleyLarry5 episodes
Stephen WaltersStephen WaltersZeppo5 episodes
Brian VernelBrian VernelCurly5 episodes
Pierro Niel-MeePierro Niel-MeeAgent McCrae5 episodes
Marek VašutMarek VašutAndre Chernitsky5 episodes
Zahari BaharovZahari BaharovPiotr Volodin5 episodes
Sean GilderSean GilderSam Chapman5 episodes
Charlie RoweCharlie RoweBen Dunn5 episodes
Rebecca Dyson-SmithRebecca Dyson-SmithAgent Smith5 episodes
Joshua LaceyJoshua LaceyTattoo Dog5 episodes
Tom WozniczkaTom WozniczkaPatrice5 episodes
Hiba BennaniHiba BennaniTara5 episodes
Fady ElsayedFady ElsayedKamal5 episodes

Technical Details

Address
Adam Randall, Saul Metzstein, Jeremy Lovering, James Hawes
Writing
Will Smith, Mark Denton, Jonny Stockwood, Morwenna Banks, Sophie Goodhart
Music
Daniel Pemberton, James Griffith, Pablo Clements
Photography
Danny Cohen, Eben Bolter, David Chizallet
Production
Jane Robertson, Anna O'Malley
Executive Producer
Gail Mutrux, Emile Sherman, Hakan Kousetta, Jamie Laurenson
Production companies
See-Saw Films, Flying Studio Pictures, Sony Pictures Television
Network or Platform
Apple TV
Country
United Kingdom, United States
Original Language
English
Premiere
April 1, 2022
Latest episode aired
October 21, 2026 (6x06)
Status
Returning series
Type
Fiction
Awards
Won 3 Emmy Awards; 20 wins and 125 nominations in total.
Links
IMDb · TMDB · Official Website

Trivia about Slow Horses

Filming began on November 30, 2020 in England, and Gary Oldman and Kristin Scott Thomas worked on the Westminster set in London.
The theme song playing over the opening credits, «Strange Game», is performed by Mick Jagger, who also co-wrote it with composer Daniel Pemberton.
Gary Oldman was nominated for a Golden Globe and a BAFTA for his performance as Jackson Lamb.
The third season received nine Primetime Emmy nominations, including one for Gary Oldman for Outstanding Lead Actor in a Drama Series.
Will Smith stepped down as showrunner after the fifth season, which he described as a «practical decision» given the workload of writing two seasons at once.
Apple TV renewed «Slow Horses» for a seventh season in July 2025, ahead of the premiere of the fifth season, according to published reports about the series.
Lenny Rush joined the sixth season in a new role; the season premiered on September 16, 2026 and had six episodes released weekly.
The sixth season premiered at the Toronto International Film Festival on September 11, 2026, with Gary Oldman, Olivia Cooke and other cast members in attendance.

Sources: Wikipedia (Spanish) · Wikipedia (English)

Trailer for Slow Horses

Slow Horses Trailer

Where to Watch Slow Horses

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Cast of Slow Horses in other movies and series

Gary OldmanJackson Lamb
ParthenopeMovieOppenheimerMovieHarry Potter 20th Anniversary: Return to HogwartsMovieThe Woman in the WindowMovieThe CourierMovieHunter KillerMovieDarkest HourMovieThe Hitman's BodyguardMovie
Jack LowdenRiver Cartwright
The Lord of the Rings: The Rings of PowerSeriesMary Queen of ScotsMovieDunkirkMoviePanMovie
Kristin Scott ThomasDiana Taverner
Tomb RaiderMovieDarkest HourMovieFleabagSeriesConfessions of a ShopaholicMovieThe Golden CompassMovieThe English PatientMovieMission: ImpossibleMovieFour Weddings and a FuneralMovie
Saskia ReevesCatherine Standish
The OutrunMovieShetlandSeriesDeath in ParadiseSeriesLutherSeriesMidsomer MurdersSeries
Aimee-Ffion EdwardsShirley Dander
Blithe SpiritMovieWar of the WorldsSeriesPeaky BlindersSeriesDeath in ParadiseSeriesLutherSeriesSkinsSeries
Ruth BradleyEmma Flyte
The WonderMovieTed LassoSeriesThe InformerMovieHumansSeriesThe FallSeriesFlyboysMovie
Jonathan PryceDavid Cartwright
The Penguin LessonsMovieWilliam TellMovie3 Body ProblemSeriesOne LifeMovieAll the Old KnivesMovieTales from the LoopSeriesTabooSeriesThe CrownSeries

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  5. 5x04 Missiles ★ 8.5

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Frequently Asked Questions

How many seasons does Slow Horses have?

Slow Horses has 6 seasons and 36 episodes in total, and is still airing.

Where to Watch Slow Horses in Spain?

Slow Horses is available on Apple TV and Apple TV Amazon Channel with a subscription.

Will there be more seasons of Slow Horses?

Slow Horses is still airing, although no date has been confirmed yet for the next episode. Once it is announced, it will appear on this profile.

Who is in Slow Horses?

The main cast includes Gary Oldman (Jackson Lamb), Jack Lowden (River Cartwright), Kristin Scott Thomas (Diana Taverner) and Saskia Reeves (Catherine Standish).

How long does it take to watch all of Slow Horses?

With episodes of about 62 minutes, watching all 36 episodes takes approximately 37 hours.

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