Jonah Prowse is the leader of a group of survivalists settled outside of the town, and father of Emily Sullivan. Before the series, Jonah was a freight worker who had a side business doing criminal dealings for Skylar's father in exchange for a fair cut of the profit from the salt mine. Former members of his gang included Jake Green and Prowse's son Chris Sullivan. Five years before the Attacks, Jonah sent them and Chris's best friend Mitchell Cafferty on an armed robbery, in which Chris was killed and Mitch arrested, whereupon Jake fled from Jericho. Emily blamed Chris's death on Jonah; Jonah and Mitch blamed Jake, for failing to watch Chris's back.