Slow Horses Season 6 Earned Perfect Critic Score
The latest season of the spy series holds a 100% approval rating on Rotten Tomatoes following its September debut.
Updated on Sept. 21, 2026 in Television
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Slow Horses season 6 has achieved a 100% critic score on Rotten Tomatoes across 30 reviews, with an average rating of 8.45 out of 10. The show’s latest outing currently maintains a 91% audience approval rating.
Why it matters
The continued critical success underscores the series' stability, which has secured 23 total Emmy nominations and three wins to date. The show is confirmed to return for at least two additional seasons, maintaining its established production cadence.
The series has garnered 23 total Emmy nominations and three wins since its 2022 premiere. Season 6 holds an average rating of 8.45 out of 10 based on 30 initial critic reviews.
The players
Olivia Cooke
She is an actress who returned to the cast of the series to reprise her role as Sid Baker.
Gaby Chiappe
She is the new head writer tasked with leading the creative direction for the current season.
The details
Season 6, which features the return of Olivia Cooke as Sid Baker and introduces Gaby Chiappe as the new head writer, adapts the novels Joe Country and Slough House. The production continues to film seasons back-to-back to maintain its regular release schedule.
Timeline
The series held its premiere in 2022.
Season 6 made its debut in September 2026.
The season 6 finale is scheduled for October 21, 2026.
Industry Dynamics
The series follows a pattern of critical success within the Apple TV streaming platform model, which prioritizes prestige dramas to anchor its subscription service. This consistent performance reinforces the strategy of renewing acclaimed series for multiple future seasons to retain subscriber interest.
Viewers can watch the current season exclusively on the Apple TV streaming platform. New episodes will continue to roll out on a weekly schedule until the finale in late October.
The takeaway
Maintaining a high standard of writing across multiple seasons is a difficult task in the streaming era. Audiences and critics alike continue to favor series that prioritize narrative consistency and high-quality production values.
What happens next
New episodes of Slow Horses season 6 will continue to air weekly until the season finale on October 21, 2026.
Further reading
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