Slow Horses season 6 reviews call it the strongest season yet, and it brings old faces back only to kill others off
Ahead of its Apple TV premiere, Slow Horses Season 6 has critics in rare agreement — the sort that bodes very well indeed.
Look, if you had any doubts that Slow Horses could keep up the pace after five seasons, you can scrap them right now. The buzz for Season 6 is coming in thick and fast, and by all accounts, the critics are loving it. Apple TV+ has bagged another winner here — not just as a solid continuation, but possibly the best run the Slough House crowd’s had yet.
“In fact, Season 6's resurrection of past fan-favorites is one of the reasons it's both thrilling and surprisingly comforting to watch.”
That’s Carly Lane for Collider, and she’s nailed what’s got everyone talking: the return of old faces and some surprisingly heartwarming team dynamics. She added that shoving all these characters together creates plenty of opportunities for fun, without losing the show’s knack for blending razor-sharp comedy with proper spy tension.
Big Twists, Old Faces, and the Best Yet?
The praise isn’t just about nostalgia or banter. Reviewers reckon this is a real tipping point for the series plot-wise — setting up genuinely big moves for whatever comes next. Malcolm McMillan over at Tom’s Guide mentioned there’s no loss of quality; it’s still a cracking show, pulling old mates out of the woodwork while, bluntly, killing off some others. So no one’s safe, and apparently, it keeps you guessing.
Alex Zalben from Comic Book Club properly went for it, calling this season “possibly the best” we’ve seen. His review flags up all the things you’d want in a spy thriller: twists, cliffhangers, major deaths, surprise returns, and apparently it’s not just grim drama — it’s actually hilarious in places, and even a bit romantic (which I’ll believe when I see it, to be honest). Zalben also bigs up the cast performances, which have always been a strong suit in this series.
- The consensus is dead clear: Critics are calling Season 6 the strongest yet, with the same sharp wit, strong action, and that uniquely British blend of charm and darkness that’s made Slow Horses a standout.
Men’s Journal have jumped on the bandwagon too, saying the series manages to top itself with each new outing. The tone, the action, the drama — all apparently operating at full tilt. Not easy for a spy series six seasons deep.
Season 6 lands on Apple TV+ on 16 September 2026.
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