Folok was a Goblin Overseer who lived in the mines of Moria. He was very hard-working and always took an interest for Mithril, but did not how to get it. Seeking to gain a reputation in keeping dwarven survivors alive and enslave them to mine for Mithril in the underground caverns, Folok took extra precaution since he didn't want to waken the Balrog of Morgoth since he and every member of his kin feared the creature so much.