The series ensemble cast includes Costner, Luke Grimes, Kelly Reilly, Wes Bentley, Cole Hauser, Kelsey Asbille, Brecken Merrill, Jefferson White, Forrie Smith, Denim Richards, Ian Bohen, Finn Little, Ryan Bingham and Gil Birmingham, with Mo Brings Plenty, Wendy Moniz, Jen Landon, and Kathryn Kelly upped to series regulars.