Kevin Costner will not be appearing in the second half of Yellowstone season 5, as confirmed by the actor himself. His absence is attributed to a scheduling conflict with his own film project, but there have been rumors of disagreements with the show's creator, Taylor Sheridan, and the Paramount Network, leading to a rift between the parties. Costner's departure marks the end of his character, John Dutton, a pivotal role in the series. While the actor's absence will be felt, the show will continue, focusing on the remaining Dutton family members.