Demi Singleton has joined the cast of a series titled "Lawmen: Bass Reeves". The show's relationship to the "Yellowstone" series is unclear, with some outlets describing it as a "Yellowstone" spin-off, while others indicate it is a spin-off of the "1883" series or do not specify its connection to either. The series, which also features Mo Brings Plenty and Donald Sutherland, is expected to stream this fall.