If you’re going through withdrawal symptoms now that Yellowstone has ended and Season 2 of 1923 has finished, you’ll be relieved to

know there is more Yellowstone coming your way! Along with the still-untitled spinoff featuring characters Beth Dutton (Kelly Reilly) and

Rip Wheeler (Cole Hauser), CBS has confirmed rumors of another spinoff—this time with the character of Kayce Dutton (Luke Grimes) at the helm.

 

 

Y: Marshals (working title) will feature Grimes in the role he originated on Yellowstone—Kayce Dutton, an ex-Navy SEAL and the youngest son of John Dutton (Kevin Costner). The series will be a mid-season replacement and will take over the time slot for The Road, a singing competition series from Yellowstone creator/producer Taylor Sheridan and singers Blake Shelton and Keith Urban.

Taylor Sheridan will serve as an executive producer on the series. He is also a producer on the upcoming singing competition series The Road. Other executive producers on Y: Marshals include Grimes and Yellowstone producers John Linson and Art Linson.

Grimes spent five seasons playing Kacey Dutton, the youngest son of John Dutton (Kevin Costner). A former Navy SEAL, Kacey returns home to Montana and continues on in the family ranching business, but eventually becomes Commissioner of the Montana Livestock Association. He has struggled with PTSD, as well as the tug-of-war between his moral compass and his loyalty to the Dutton name. He is married to Monica (Kelsey Asbille) and they have a son, Tate (Brecken Merrill).

Key Points
Y: Marshals, a new Yellowstone spinoff, stars Luke Grimes as Kayce Dutton.
Kayce joins an elite U.S. Marshals unit balancing family, duty, and violent threats.
Series premieres on March 1, 2026 on CBS.
If you’re going through withdrawal symptoms now that Yellowstone has ended and Season 2 of 1923 has finished, you’ll be relieved to know there is more Yellowstone coming your way! Along with the still-untitled spinoff featuring characters Beth Dutton (Kelly Reilly) and Rip Wheeler (Cole Hauser), CBS has confirmed rumors of another spinoff—this time with the character of Kayce Dutton (Luke Grimes) at the helm.

Y: Marshals (working title) will feature Grimes in the role he originated on Yellowstone—Kayce Dutton, an ex-Navy SEAL and the youngest son of John Dutton (Kevin Costner). The series will be a mid-season replacement and will take over the time slot for The Road, a singing competition series from Yellowstone creator/producer Taylor Sheridan and singers Blake Shelton and Keith Urban.

Here’s everything we know so far about Y: Marshals, including the cast, plot and trailer.

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What is Y: Marshals about?
With the Yellowstone Ranch behind him, Kayce (Grimes) joins an elite unit of U.S. Marshals, combining his skills as a cowboy and Navy SEAL to bring range justice to Montana. Kayce and his teammates – Pete Calvin (Logan Marshall-Green), Belle Skinner (Arielle Kebbel), Andrea Cruz (Ash Santos) and Miles Kittle (Tatanka Means) – must balance the high psychological cost of serving as the last line of defense in the region’s war on violence with their duty to their families, which for Kayce includes his son Tate (Brecken Merrill) and his confidantes Thomas Rainwater (Gil Birmingham) and Mo (Mo Brings Plenty) from the Broken Rock reservation.

Who will produce Y: Marshals?
Taylor Sheridan will serve as an executive producer on the series. He is also a producer on the upcoming singing competition series The Road. Other executive producers on Y: Marshals include Grimes and Yellowstone producers John Linson and Art Linson.

Related: Kelly Reilly and Cole Hauser Yellowstone Spinoff Makes Major Announcement

Are producers John Linson and Art Linson related?
Yes, they are. Art Linson is the father of John Linson.

Related: All About the New Yellowstone Spinoff Starring Kelly Reilly and Cole Hauser

Who’s in the cast of Y: Marshals?
Luke Grimes in “Yellowstone”
Luke Grimes as Kacey Dutton
Grimes spent five seasons playing Kacey Dutton, the youngest son of John Dutton (Kevin Costner). A former Navy SEAL, Kacey returns home to Montana and continues on in the family ranching business, but eventually becomes Commissioner of the Montana Livestock Association. He has struggled with PTSD, as well as the tug-of-war between his moral compass and his loyalty to the Dutton name. He is married to Monica (Kelsey Asbille) and they have a son, Tate (Brecken Merrill).

Kelsey Asbille
Kelsey Asbille as Monica
While there has been no other casting news except for Grimes, we can’t imagine we won’t see Monica and Tate. Whether or not the original actors will continue in the roles or if we’ll see them at all remains to be seen.

Asbille is part Chinese, white and indigenous American and hails from South Carolina. She has appeared in Fargo, Teen Wolf and Wind River.

We didn’t get to see much of the leader of the Broken Rock Indian Reservation in season 4. While his efforts to take back the Dutton land for his people seem to be on the back burner for now, it’s bound to resurface at some point.

Mo is Rainwater’s Everyman, serving as his driver and assistant and all things in between. Brings Plenty also served as a technical advisor and native affairs coordinator on Yellowstone.