Will Kevin Costner Appear on ‘Y: Marshals’, the ‘Yellowstone’ Kayce Dutton Spinoff?

John Dutton may be gone in the Yellowstone saga, yet fans keep wondering if Kevin Costner could return for a flashback appearance in Y: Marshals, the upcoming CBS series centered on Kayce Dutton. The spin-off, which shifts focus to Kayce and his journey beyond the Yellowstone Ranch, expands the universe created by Taylor Sheridan.

Possibility of Kevin Costner’s Return

Although John Dutton’s story ended, the potential for flashbacks or unseen moments from his past remains open. Costner’s portrayal shaped the moral and emotional tone of the Yellowstone series, making his reappearance—even briefly—highly anticipated by longtime viewers.

Industry insiders note that production details and casting confirmations for Y: Marshals are still in early discussion. Neither CBS nor Sheridan’s production team has confirmed Costner’s involvement.

About Y: Marshals

The spinoff will follow Kayce Dutton, played by Luke Grimes, as he assumes a role connected with U.S. Marshals. The project promises to mix crime drama with the familiar frontier ethos of Yellowstone, focusing on loyalty, justice, and family legacy.

“John Dutton’s influence may linger long after his death,” a source close to the production reportedly said, implying that flashbacks could still anchor the story emotionally.

As the Yellowstone universe continues to expand, fans remain eager for confirmation of which familiar faces will join Kayce in this new chapter.

Author’s Summary: The article explores whether Kevin Costner might reprise his iconic John Dutton role through flashbacks in Y: Marshals, the new Kayce Dutton-centered Yellowstone spinoff.

Mountain Democrat — 2025-11-26