This darkly funny espionage drama follows a team of British intelligence agents led by the notorious Jackson Lamb (Sir Gary Oldman). Season 6 premieres September 16, 2026. apple.co/slowhorses David Cartwright: husband, father, grandfather, and cherished member of the... Department of Transport. It's a bad day for River Cartwright that's only going to get worse. Subscribe to Apple TV’s YouTube channel: apple.co/AppleTVYouTube Follow Apple TV: Instagram: instagram.com/AppleTV TikTok: tiktok.com/@AppleTV Facebook: facebook.com/AppleTV Threads: threads.com/@AppleTV X: X.com/AppleTV Giphy: giphy.com/AppleTV FAQ: When does Slow Horses season 6 premiere? Season 6 of Slow Horses premieres September 16 on Apple TV Where can I watch Slow Horses? Watch Slow Horses on Apple TV Who stars in Slow Horses? Slow Horses features Sir Gary Oldman, Kristin Scott Thomas, Jack Lowden, and Saskia Reeves. What is Slow Horses about? This ...