‘Yellowstone’s Kelly Reilly and Cole Hauser are reportedly set to reprise their roles in a spinoff series. Until then, fans can get their fix by watching the series finale of ‘Yellowstone’ on Sunday on Paramount Network. The actors chatted with ET’s Cassie DiLaura ahead of the final drop of episodes, where they dished on what to come and if they could see themselves returning to the Dutton ranch for more.