Yellowstone Stars Break Silence on Marshals Killing Off Monica

Former cast members react to the shocking death of Kelsey Asbille's character in the Yellowstone spinoff series

Mar. 29, 2026 at 4:06pm

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An abstract close-up image featuring shattered glass and cracked leather textures in high-contrast studio lighting, conveying a sense of emotional fragmentation and turmoil.The shocking death of Monica in the Yellowstone spinoff Marshals has left the show's central character, Kayce Dutton, grappling with profound loss and an uncertain future.Bozeman Today

Former Yellowstone stars have broken their silence on Kelsey Asbille's character, Monica, being killed off the Marshals spinoff. Fans were shocked to learn that Monica died after battling cancer in the new series, which premiered in March 2026.

Why it matters

Monica was a central character in Yellowstone, which aired from 2018 to 2024. Her death in the Marshals spinoff represents a major narrative shift that has left some fans and cast members surprised and saddened.

The details

Following John's death in Yellowstone, Kayce (Luke Grimes) became the new owner and operator of the Yellowstone Ranch. Kayce and Monica ended the show alive and still together before Marshals began. However, the new series revealed that Monica had died from cancer that resulted from toxins dumped onto the Broken Rock reservation.

  • The Yellowstone spinoff Marshals premiered in March 2026.
  • Monica's death was revealed in the Sunday, March 1, 2026 episode of Marshals.

The players

Kelsey Asbille

The actress who portrayed Monica on Yellowstone.

Luke Grimes

The actor who played Kayce Dutton on Yellowstone and now stars in the Marshals spinoff.

Spencer Hudnut

The showrunner of Marshals who made the decision to kill off Monica.

Mo Brings Plenty

The actor who reprised his role as Mo on Marshals and was shocked by Monica's death.

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What they’re saying

“I was not at all expecting that when I got the call that that's their idea. And I felt two things simultaneously. One was I was incredibly bummed because Kelsey's one of my really good friends and the coolest actor I've ever worked with. We're really close, and for a while I couldn't imagine doing it without her. I was like, 'That doesn't even make sense. Kayce and Monica are the same thing. They're one.' But I also realized, well, there's a big story there.”

— Luke Grimes, Actor

“Boy. At first, I was like, 'Why?!' Because that was our connection to the Duttons. There's always been a connection between the Dutton family and Broken Rock, but Monica was more of a connection. So to lose that, at first, my reaction was like, 'No.'”

— Mo Brings Plenty, Actor

What’s next

Fans will have to continue watching Marshals to see how Kayce Dutton deals with the loss of his wife Monica and the impact it has on his journey.

The takeaway

The decision to kill off a beloved Yellowstone character like Monica in the Marshals spinoff represents a bold narrative shift that has left some fans and cast members surprised, but also intrigued to see how Kayce's story will evolve without his longtime partner.