This list was originally published on April 26, 2018. We’re not so covertly republishing it now to mark the premiere of Slow Horses season five.

The small-screen British spy genre is packed with some of the most tonally diverse marvels under the sun — pick one show, and you’ll bear witness to a beautiful assassin stabbing a man to death with a needle. Pick another, and a guy is giggling his way through the silliest MI-5 training imaginable. Whatever your taste, there are spy gadgets, thrilling chases, secret identities, and twisty betrayals throughout this list of good ol’ fashioned espionage shows for your (incognito) browsing pleasure.

Slow Horses (2022–present)

Made up entirely of disgraced MI-5 agents, the team of “slow horses” working at Slough House aren’t considered London’s

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