A New Frontier for Kayce Dutton

The Yellowstone universe continues to expand, and this time, it’s heading into uncharted territory. CBS has officially ordered Y: Marshals, a high-stakes spinoff centered on Kayce Dutton, played by Luke Grimes. The series will follow the youngest Dutton son as he trades in his cowboy hat for a Marshal’s badge, ushering in a new era for the beloved neo-Western saga.

“Cowboys don’t say goodbye, they say see you later,” Grimes teased on Instagram when the news broke — and now, fans finally have an idea of what’s next for his character.

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When Will Y: Marshals Premiere?

The 13-episode series is set to debut in spring 2026 as a midseason addition to CBS’s lineup. The show will air Sunday nights at 9 p.m. ET, a prime slot that cements its importance within CBS’s drama roster.

Filming begins in mid-2025, with CBS calling the project one of its most ambitious dramas yet.

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The Story: A New Kind of Justice

According to the official synopsis, Y: Marshals follows Kayce as he leaves ranch life behind to join an elite unit of U.S. Marshals. Drawing on both his cowboy roots and Navy SEAL training, he brings “range justice” to the rugged expanse of Montana — a region fraught with corruption, violence, and moral gray areas.

Kayce’s new role forces him to balance family, duty, and the heavy psychological toll of enforcing justice in a lawless land. In the show’s first teaser, Kayce declares, “I’m changing paths. Trying to find a new beginning.”

It’s a clear signal that this series will explore both redemption and the cost of survival — the same themes that made Yellowstone a global hit.

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Who’s Behind the Series?

Y: Marshals is helmed by Spencer Hudnut, the showrunner best known for CBS’s SEAL Team. Hudnut brings the same military precision and emotional realism that made that series a standout.

Taylor Sheridan, the creator of Yellowstone and Paramount’s growing “Sheridanverse,” returns as executive producer, alongside David C. Glasser and John Linson. CBS executives have hinted that Sheridan’s role may be limited due to his work on other projects like 1944 and Land Man, but his creative influence will remain at the core of the show’s DNA.

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The Cast

The ensemble joining Luke Grimes is as compelling as the world he’s stepping into:

• Arielle Kebbel as Belle, a sharp, tactical Marshal with a fierce sense of justice.

• Ash Santos as Andrea, a resilient and ambitious agent driven by personal loss.

• Tatanka Means as Miles, Kayce’s trusted partner who keeps him grounded.

• Brett Cullen as Harry Gifford, the no-nonsense head of the Montana U.S. Marshals.

• Logan Marshall-Green in a key recurring role, details still under wraps.

Returning from Yellowstone are Gil Birmingham as Thomas Rainwater, Mo Brings Plenty as Mo, and Brecken Merrill reprising his role as Tate Dutton, Kayce’s son.

Notably, Kelsey Asbille, who played Monica Dutton, has not been confirmed to return — marking one of the biggest lingering questions for fans.

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How It Fits Into the Yellowstone Universe

Unlike Paramount’s period prequels 1883 and 1923, Y: Marshals shifts tone and structure, embracing a procedural edge while maintaining Sheridan’s trademark cinematic storytelling. The show will blend the sweeping Montana landscapes fans love with the gritty intensity of modern law enforcement dramas.

CBS is betting big that this fusion — equal parts Yellowstone and SEAL Team — will resonate with both longtime fans and newcomers.

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The Legacy Continues

With Y: Marshals, Yellowstone’s influence officially crosses into broadcast television, marking the first major Sheridanverse project to debut on CBS. It’s a move that signals the franchise’s evolution from cable phenomenon to mainstream powerhouse.

As CBS Entertainment President Amy Reisenbach noted, “Y: Marshals carries the spirit of Yellowstone into a new world — one where justice has no boundaries and loyalty is tested every day.”