The Yellowstone universe is expanding once again, and this time it's bringing a fresh face to the Dutton's new frontier. Actor Logan Marshall-Green has officially joined the cast of Y: Marshals, the upcoming spinoff of Taylor Sheridan's hit Western drama, starring Luke Grimes as Kayce Dutton.

Logan Marshall-Green has been tapped as a lead opposite Luke Grimes in CBS’ Yellowstone spinoff series Y: Marshals, in which Grimes reprises his role as Kayce Dutton from Taylor Sheridan’s hit Paramount Network drama.

Logan Marshall-Green joins the cast of 'Y: Marshals', playing Pete Calvin, a military buddy of Kayce Dutton. 'Y: Marshals' will star Luke Grimes, who will reprise his role as Kayce Dutton, now part of a specialized U.S. Marshals unit in Montana. The show is scheduled to air mid-season 2025–2026 on CBS, Sunday nights.