The doctors examining Gilzean's body reveal that Butch Gilzean was an alias, and that his birth name is Cyrus Gold. Gold becomes Solomon Grundy in the fourth season episode "The Blade's Path", in which the corrupt administrators of the hospital dump him in Slaughter Swamp, where chemical waste from the Indian Hill facility transforms him into a pale, zombie-like creature with regenerative abilities and superhuman strength. Suffering amnesia from his head wound, Gold adopts the name "Solomon Grundy", based on the nursery rhyme, when he hears the name on a record played by people living on the street.