The leader of the Big Coffin Hunters, a trio of hired guns working for John Farson in the Barony of Mejis. An old man with a limp and long white hair, Jonas is cunning, dangerous, and ruthless. He was once a gunslinger's apprentice who failed his test and was sent west in disgrace. He coordinates the conspiracy to steal horses and oil for Farson's army, and frames Roland's ka-tet for the murders of Thorin and Rimer. He is killed by Roland in single combat on Reaping Night.