1: Kevin Costner confirms he won't return to Yellowstone, leaving fans disappointed.

2: Costner's exit from Yellowstone sparks speculation about the show's future.

3: Fans react to the news of Kevin Costner's departure from Yellowstone.

4: Costner's decision to leave Yellowstone raises questions about the cast lineup.

5: Yellowstone producers address Kevin Costner's departure from the show.

6: Costner's farewell to Yellowstone leaves fans wondering about Season 5.

7: Impacts of Kevin Costner's exit on the plot and storyline of Yellowstone.

8: The legacy Kevin Costner leaves behind on the set of Yellowstone.

9: Reflections on Kevin Costner's time on Yellowstone as he says goodbye.