Gnasher was a prisoner in "The Hole" and a member of the one of the Hole's two resident factions, "The Monsters" as Logan identified them, Gnasher had filed his teeth into weapons to protect himself from the other residents of "The Hole." After Logan befriended him Gnasher defended Logan after he was stabbed, and later carried Logan deeper into the Hole in a second escape attempt, killing a half dead Fin to protect Logan. After escaping the Hole Gnasher became Logan's closest bodyguard,