Gary Oldman’s Jackson Lamb makes an unexpected appearance at a birthday party in Collider’s exclusive Slow Horses Season 6 finale clip.
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![‘Slow Horses’ Season 6 Officially Reaches the End of an Era in Finale Sneak Peek [Exclusive]](https://static0.colliderimages.com/wordpress/wp-content/uploads/2026/10/copy-of-collider-template-2026-10-19t090119-769.jpg)
Entertainment
October 19, 2026 at 5:00 PM
‘Slow Horses’ Season 6 Officially Reaches the End of an Era in Finale Sneak Peek [Exclusive]
Collider
Excerpt from Collider.
