Kayce Dutton’s Backstory in Yellowstone, Explained Ahead of Y: Marshals Spinoff Arrival

Kayce Dutton’s Backstory in Yellowstone, Explained Ahead of Y: Marshals Spinoff Arrival
Image credit: Paramount+

A significant part of the Dutton family in Yellowstone, Kayce has recently got his own spinoff titled Y: Marshals and scheduled for a release in the spring of 2026. Here’s everything you need to know about the character before he returns in a new show.

Taylor Sheridan’s Yellowstone franchise has just got itself yet another expansion as, according to Deadline, a new spinoff series Y: Marshals is in the works at CBS, though so far with Taylor Sheridan not being attached.

The project itself now eyes Kayce Dutton and his story for further exploration, following the events after his father John Dutton’s death.

Now coming right after another sequel series that will take a closer look at Beth Dutton and her relationship with husband Rip Wheeler, Y: Marshals will finally give some more attention to one of the show’s most complex characters.

Before that, however, there might be a need to remind who Kayce is and what his story was like in Yellowstone.

Kayce Dutton’s Backstory and Role in Yellowstone, Explained

Kayce Dutton’s Backstory in Yellowstone, Explained Ahead of Y: Marshals Spinoff Arrival - image 1

Kayce Dutton is one of Yellowstone’s leading characters and the youngest estranged son of Kevin Costner’s John Dutton III.

Having lost his mother at a pretty young age, Kayce kept close relationships with his father until a major event drifted them apart for years.

At some point, Kayce met Monica Long, a Native American and lifelong resident of Broken Rock Indian Reservation which repeatedly threatened to claim the Yellowstone Dutton Ranch.

Kayce Dutton’s Backstory in Yellowstone, Explained Ahead of Y: Marshals Spinoff Arrival - image 2

The two soon started dating and eventually, when Monica got pregnant, the couple decided to keep the child against John Dutton’s advice who considered this his son’s betrayal of the entire family.

However, Kayce went against his father’s will even further, later on marrying Monica and moving to the Broken Rock Reservation to live there with her and their son.

It’s also revealed that Kayce served as a U.S. Navy SEAL, but this is what will most likely be explored in CBS’ Y: Marshals.

Yellowstone Fans Aren’t That Happy About Kayce Spinoff

Kayce Dutton’s Backstory in Yellowstone, Explained Ahead of Y: Marshals Spinoff Arrival - image 3

Even though Luke Grimes’ character might have had enough clashes with his father for the franchise to delve into the whole point of it, many fans of the original series don’t really find his story that compelling.

“Kasey and his wife and his kid are the last people who need their own show. I literally fast forward their scenes”, Redditor Wonderful_Big_2936 revealed in a show-related thread a while ago.

“Would certainly need more star power than just him. Does he really have what it takes to lead a series?” WildRugosa reflected on another potential problem of the future series.

Kayce Dutton’s Backstory in Yellowstone, Explained Ahead of Y: Marshals Spinoff Arrival - image 4

“Kasey?! For real?! Dayum.. Could do something with Rip instead!” Rhamondd ranted.

When Is Y: Marshals Being Released?

The series is now expected to arrive on Paramount+ sometime in the spring of 2026.

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