Slow Horses Season 8 Currently in Production as Apple Series Approaches Possible Conclusion
Production has officially begun on Slow Horses season 8, with season 7 already completed, according to actor Christopher Chung. The spy thriller, based on Mick Herron's Slough House book series, is facing the challenge of potentially running out of source material to adapt. While the show's future beyond season 8 remains uncertain, Chung humorously suggested encouraging author Herron to write additional novels to extend the series.
Slow Horses, which debuted on Apple TV+ in 2022, centers on a team of underperforming MI5 agents working at the Slough House division. The series has maintained a consistent release schedule, premiering new seasons each September. Season 6 notably diverged from the show's format by combining two source novels into a single season rather than adapting one book per season, a structural choice that accelerated the adaptation timeline.
Author Mick Herron's book series currently comprises nine published works, with Slow Horses season 7 adapting "Bad Actors" and season 8 covering "Clown Town." However, Herron has publicly indicated his intention to continue writing additional Slough House novels beyond the current catalog, suggesting potential material exists for the television adaptation to extend beyond season 8.
The potential conclusion of Slow Lawyers could impact Apple TV+'s content pipeline, as successful prestige dramas represent valuable IP for streaming platforms. Fans invested in the spy-thriller genre and the show's established cast may face the prospect of losing a critically acclaimed series. However, author Herron's commitment to writing additional novels could mitigate this concern, allowing the adaptation to continue provided Apple greenlight future seasons. The situation illustrates broader industry challenges streaming services face in adapting finite source material.