Bad Actors is a magnificent entry in the Slough House series and one of the sharpest political thrillers published in recent years. As an Audible audiobook, it is elevated even further by Sean Barrett’s exceptional narration, which captures every ounce of Herron’s wit, tension, and cynicism. Combining espionage, satire, and character drama, this is an audiobook that grips from the opening chapter and never loosens its hold.

The novel finds the dysfunctional inhabitants of Slough House caught up in a dangerous conspiracy that reaches into the highest levels of government. As scandals mount and political careers teeter on the brink, the so called slow horses find themselves dealing with threats that are both personal and national in scope. Herron’s plotting is as intricate as ever, but what makes the story particularly compelling is the way it reflects the atmosphere of modern British politics. The novel feels rooted in the realities of recent years without becoming tied to any specific event, allowing it to function both as an entertaining thriller and a pointed satire.

One of the highlights is the character of David Sparrow, a political adviser whose resemblance to Dominic Cummings is so obvious that it becomes a running joke in itself. Herron clearly has enormous fun with the character, presenting him as a self styled political genius whose opinion of his own brilliance is vastly greater than everyone else’s. Sparrow is convinced that he alone can see the bigger picture, and he approaches every situation with the confidence of a man who believes history will remember him as a visionary.

What makes Sparrow so entertaining is that Herron never turns him into a simple caricature. He is undeniably ridiculous, with his overblown sense of self importance and constant certainty that he is the smartest person in every room, yet he remains believable because readers will recognise similar figures from real political life. Every appearance brings a mixture of amusement and exasperation, and the character serves as a perfect vehicle for Herron’s satire of modern government and the cult of the unelected adviser.

At the heart of the novel, however, remain the familiar residents of Slough House. Jackson Lamb continues to be one of the most entertaining characters in contemporary fiction. Crude, manipulative, and endlessly offensive, he somehow remains deeply likeable. Herron understands exactly how to use Lamb, giving him many of the novel’s funniest moments while also revealing flashes of intelligence and loyalty that prevent him from becoming a mere comic creation.

Sean Barrett’s narration is simply outstanding. His performance has become inseparable from the series, and Bad Actors provides another reminder of his remarkable skill. Barrett captures Lamb perfectly, delivering every insult and cutting observation with impeccable timing. He also gives distinct voices to the wider cast, ensuring that listeners can effortlessly follow a story filled with numerous characters and shifting perspectives.

Perhaps most impressive is Barrett’s command of tone. Herron’s novels move seamlessly between comedy, suspense, tragedy, and political commentary, and Barrett navigates those changes with complete confidence. The humour lands beautifully, the tension builds naturally, and the emotional moments carry genuine weight.

The production quality is excellent throughout, creating an immersive listening experience that does full justice to Herron’s writing. Combined with Sean Barrett’s superb narration, Bad Actors stands as one of the finest audiobooks in the series.

Smart, funny, politically astute, and consistently entertaining, Bad Actors is a triumph. For fans of modern espionage fiction, it is essential listening and another demonstration of why Mick Herron remains at the very top of his field.

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