Fans eager for more from the Yellowstone universe will have to wait a little longer to see Luke Grimes back in action. CBS has confirmed that the highly anticipated spinoff Y: Marshals, centered on Kayce Dutton, will not premiere this fall but instead debut midseason in 2026.

Why ‘Y: Marshals’ Isn’t Premiering This Fall

Originally announced in May as part of CBS’s 2025–26 lineup, Y: Marshals was expected to arrive sooner. However, the network has opted to hold the series for its spring schedule, where it will air Sundays at 9 p.m. ET following the third season of Tracker (premiering October 19, 2025).

The move allows CBS to give the new spinoff a high-profile midseason launch and a prime Sunday slot — a strategic choice designed to maximize viewership once Tracker wraps its run.

What ‘Y: Marshals’ Is About

Y: Marshals follows Kayce Dutton, played once again by Luke Grimes, as he transitions from the ranch to the front lines of justice. After his time as a cowboy and Navy SEAL, Kayce joins an elite division of U.S. Marshals tasked with maintaining order across the rugged Montana frontier.

The series blends Western grit with law enforcement drama, exploring the psychological toll of justice and the personal sacrifices that come with it. Expect a mix of Yellowstone’s sweeping landscapes and intense moral dilemmas, but with a modern procedural edge.

Who’s Joining the Cast

In addition to Grimes, the spinoff brings back familiar faces from the Yellowstone world, including Gil Birmingham, Mo Brings Plenty, and Brecken Merrill (as Kayce’s son, Tate).

New cast members include Logan Marshall-Green, Arielle Kebbel, Ash Santos, Tatanka Means, and Brett Cullen. While fans are hoping for Kelsey Asbille’s return as Monica Dutton, CBS has yet to confirm her involvement — though insiders hint it could still happen.

Expanding the Yellowstone Universe

Y: Marshals is one of several Yellowstone spinoffs currently in development, alongside:

• Dutton Ranch, featuring Kelly Reilly and Cole Hauser reprising their roles as Beth and Rip.

• The Madison, a new standalone drama starring Kurt Russell, Patrick J. Adams, and Matthew Fox.

• 1994, a prequel following the lineage of 1883 and 1923.

Even with the main series concluded, the Yellowstone legacy continues to thrive across multiple timelines and generations.

When and Where to Watch

While a specific premiere date for Y: Marshals hasn’t been announced, the series will arrive spring 2026 on CBS and stream on Paramount+ shortly after broadcast.

In the meantime, fans can revisit the Dutton family saga — all five seasons of Yellowstone are available on Peacock, while the prequels 1883 and 1923 stream on Paramount+.