Mulch Diggums is a kleptomaniac dwarf who once ran a minor business called Short and Diggums: Private Investigators with Holly Short after he "goes straight", after his long life on the run for his crimes, particularly those regarding thefts. He gave up his magic after entering a human dwelling without being invited in by the humans who lived there. He was frequently asked for help when Julius Root was commander, namely during the Fowl Manor siege.