In this conversation recorded for Washington Post Live on Jan. 10, actor David Oyewolo talks about his new series, “Lawmen: Bass Reeves,” in which he plays the eponymous Bass Reeves, the first Black deputy U.S. marshal west of the Mississippi River. Oyelowo also discusses what it was like to work with his wife in a part weighted with personal and historic significance, and why it was important for him to bring Reeves’s story to the screen.