Marshals' Every good story doesn't have an ending — just ask Luke Grimes. After CBS announced that the actor would return as Kayce Dutton in a brand-new Yellowstone spinoff series that has a working title of Y: Marshals,

Yellowstone” star Luke Grimes, 41, will return for a spinoff series called “Y: Marshals,” CBS announced.  According to the official logline, “With the Yellowstone Ranch behind him, Dutton joins an elite unit of U.

CBS revealed its 2025-26 schedule, which also includes "Blue Bloods" spinoff starring Donnie Wahlberg and an "FBI: CIA" series starring Tom Ellis.