16 April 2026

#1 NYT Bestselling Author Mark Greaney Talks The Hard Line and Writing the Gray Man

Up + Adam with Adam Montiel

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What happens when the hunter becomes the hunted?

On this episode of Up+Adam, Adam sits down with #1 New York Times bestselling author Mark Greaney, the mastermind behind the wildly popular Gray Man series, to talk about his latest release, The Hard Line. Whether you're a longtime thriller fan or someone just looking for your next page turner, this conversation opens the door to the power of fiction to reflect the real world in ways that feel urgent, intense, and deeply human.

Mark shares how he flipped the script on his iconic character Court Gentry, turning an apex predator into prey and introducing one of his most personal and complex villains yet, a man driven by loss, legacy, and revenge. The conversation dives into the psychology behind great antagonists, the emotional weight of writing about family and generational cycles, and how today’s chaotic world influences the stories he tells. As heard in the interview, Greaney leans into the tension between fiction and reality, drawing from a world where “Americans don’t trust Americans” and building narratives that feel eerily close to home.

Adam and Mark also get into the craft, what it takes to write 15 books in a series without losing originality, the chaos behind the creative process, and how something like “maladaptive daydreaming” can evolve from a childhood challenge into a storytelling superpower. It’s a conversation about discipline, imagination, and the responsibility of writing characters that live in moral gray areas but still earn our loyalty.

• Learn more about Mark Greaney: https://markgreaneybooks.com

• Buy The Hard Line: https://www.amazon.com/dp/0593954815

• Follow Mark on Instagram: https://www.instagram.com/markgreaneybooks/

• Listen, subscribe, and stay curious, more conversations like this at Up+Adam

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