The Master Jailer

A fixture of DC's reference lore before anything else, The Master Jailer made their catalog debut in Who's Who: The Definitive Directory of the DC Universe #14 in 1986 — which is itself a kind of distinction, earning an entry in DC's grand Copper Age encyclopedia alongside the likes of Superman, Clark Kent, and Green Lantern. Their appearances across the Superman corner of the DC Universe, including Superman and Superman: The Man of Steel, place them squarely in the world of Metropolis mythology. Rare in the catalog but intriguing for that very reason, The Master Jailer is one of those characters that rewards the deep-diving collector who wants to know every corner of the Superman mythos.