Mike Smith
As of September 16, 2026, Season 6 of Slow Horses is available to stream on Apple TV globally, including North America, Latin America, Europe, Asia, and the Middle East wherever the service operates.
Slow Horses Season 6 Synopsis
Slow Horses Season 6 is a new season of the British spy thriller series that follows Jackson Lamb and the disgraced MI5 agents working from Slough House. Based on Joe Country and Slough House, the sixth and seventh novels in Mick Herron’s Slough House book series, the season stars Gary Oldman as Jackson Lamb, Jack Lowden as River Cartwright, Kristin Scott Thomas as Diana Taverner, Saskia Reeves as Catherine Standish and Christopher Chung as Roddy Ho.
The story puts the Slow Horses on the run after Diana Taverner draws them into a dangerous cycle of retaliation and revenge. River is also dealing with his grandfather’s funeral, while the return of Frank Harkness and a series of suspicious deaths bring another threat directly to Lamb and his team.
When Does Slow Horses Season 6 Premiere?
Slow Horses Season 6 premieres globally on Apple TV on September 16, 2026. The six-episode season begins with one episode on premiere day, followed by a new episode every Wednesday through the finale on October 21, 2026.
Where to Watch Slow Horses Season 6 in the US
You can watch Slow Horses Season 6 in the US on Apple TV, with new episodes streaming every Wednesday. The series is also available to stream through the Apple TV Prime Video Channel for subscribers who prefer watching through Prime Video.
Where to Watch Slow Horses Season 6 in Canada
Slow Horses Season 6 is available to stream in Canada on Apple TV, starting September 16, 2026. Canadian viewers can also watch the season through the Apple TV Prime Video Channel with the required subscription.
Where to Watch Slow Horses Season 6 in the UK
Viewers in the UK can stream Slow Horses Season 6 on Apple TV, with episodes released weekly from September 16. You can also watch the series using the Apple TV Prime Video Channel through Prime Video.
Where to Watch Slow Horses Season 6 in Australia
In Australia, Slow Horses Season 6 is available to watch on Apple TV from September 16, 2026. Another way to stream the series is through the Apple TV Prime Video Channel with an active subscription.
Slow Horses Season 6 Episodes
Here are the episodes in Slow Horses Season 6.
- Episode 1 – Circle of Life – Premiere date: September 16, 2026
River prepares for his grandfather’s funeral while Lamb investigates the death of a former Slow Horse. - Episode 2 – Daddy Issues – Premiere date: September 23, 2026
Frank Harkness returns as a suspicious series of killings puts Lamb and his team on alert. - Episode 3 – Resurrection – Premiere date: September 30, 2026
Former Slow Horses return while assassins close in and Taverner deals with the consequences of her television interview. - Episode 4 – Lost & Found – Premiere date: October 7, 2026
Lamb tries to discover who Frank is working for as Sid, River and Coe attempt to escape a hit squad. - Episode 5 – Sayonara – Premiere date: October 14, 2026
River searches for Sid, Lamb turns his attention to Cantor and Taverner continues with a risky deal. - Episode 6 – Judgement Day – Premiere date: October 21, 2026
The safe house comes under threat, forcing Lamb and Taverner to work together in the season finale.
Slow Horses Season 6 Cast
Here are the main cast members in Slow Horses Season 6.
- Gary Oldman as Jackson Lamb.
- Jack Lowden as River Cartwright.
- Kristin Scott Thomas as Diana Taverner.
- Saskia Reeves as Catherine Standish.
- Christopher Chung as Roddy Ho.
- Aimee-Ffion Edwards as Shirley Dander.
- Rosalind Eleazar as Louisa Guy.
- Olivia Cooke as Sidonie “Sid” Baker.
- Tom Brooke as J.K. Coe.
- Jonathan Pryce as David Cartwright.
- Hugo Weaving as Frank Harkness.
Can You Watch Slow Horses Series for Free?
Yes. New subscribers can watch Slow Horses with the 7-day Apple TV free trial, which includes Apple TV original series and movies. After the trial ends, a paid Apple TV subscription is required to continue streaming the series.
Is Slow Horses Suitable for All Ages?
No. Slow Horses is rated TV-MA in the US, while the classification varies by country, including 15 in the UK and MA 15+ in Australia. The series contains violence, strong language and mature themes, making it best suited to mature teenagers and adults.
Where Can I Download Slow Horses Season 6 Episodes?
You can legally download Slow Horses Season 6 episodes through the Apple TV app on supported devices. Open the episode in the app and select the download option to save it to your device. Once downloaded, the episode can be watched offline through the Apple TV app.
On What Devices Can You Watch Apple TV?
You can stream Apple TV on a wide range of phones, tablets, computers, smart TVs and streaming devices.
| Category | Devices |
|---|---|
| Smartphones | iPhone, Android phones |
| Tablets | iPad, Android tablets |
| Computers | Mac, Windows PCs |
| Smart TVs | Samsung Smart TVs, LG Smart TVs, Sony Smart TVs, VIZIO Smart TVs |
| Streaming Devices | Apple TV 4K, Amazon Fire TV, Roku, Google TV devices |
| TV Platforms | Xfinity, Sky Q, selected cable and TV boxes |
| Web Browsers | Safari, Chrome, Firefox, Microsoft Edge |
FAQs
Who directs Slow Horses?
Adam Randall directs Slow Horses.
Who plays Jackson Lamb in Slow Horses?
Gary Oldman plays Jackson Lamb. He is an English actor known for films including Darkest Hour, Tinker Tailor Soldier Spy and the Harry Potter series.
Who plays River Cartwright in Slow Horses?
Jack Lowden plays River Cartwright.
What genre is Slow Horses?
Slow Horses is a spy thriller, drama and black comedy series.
How many episodes are in Slow Horses Season 6?
Slow Horses Season 6 has six episodes.
Who produces Slow Horses?
Slow Horses is produced for Apple TV by See-Saw Films. The production company is known for television and film projects including Heartstopper, The Power of the Dog and The King’s Speech.
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