Season 6
In season six, the Slow Horses are on the run as Diana Taverner drags them all into a deadly, high-stakes cycle of retaliation and revenge.
Cast & Crew
Episode Guide
River steels himself for his grandfather's funeral. Lamb investigates the death of an ex–Slow Horse.
Season 6 FAQs
The directors of Season 6 are Matt Alder, Iain Atkinson, and Evelien Kortum.
The cast of Season 6 includes Gary Oldman as Jackson Lamb, Hugo Weaving as Frank Harkness, Jack Lowden as River Cartwright, Saskia Reeves as Catherine Standish, Kristin Scott Thomas as Diana Taverner, Christopher Chung as Roddy Ho, Aimee-Ffion Edwards as Shirley Dander, and Rosalind Eleazar as Louisa Guy.
Episodes run about 50 mins. The total runtime is about 5h 2 mins.
Yes. You can watch the Season 6 trailer on this Fanbiz page on Fanziz.
You can watch Season 6 on Apple TV Amazon Channel (Subscription). Check this Fanbiz page for the latest platforms.
Season 6 was released on 16 Sep 2026.
Season 6 has 5 seasons and 6 episodes on Fanbiz. Available seasons include Season 1, Season 2, Season 3, Season 4, and Season 5.