Nekron

Nekron is DC's cosmic lord of death and darkness, an ancient entity who exists beyond the realm of the living and serves as the ultimate embodiment of death itself, wielding dominion over deceased souls and standing as one of the most formidable cosmic threats in the DC Universe.

Few villains in DC's cosmic mythology carry the chill of Nekron, who made his catalog debut in the pages of Who's Who: The Definitive Directory of the DC Universe #16 in 1986 — arriving at the dawn of the Copper Age as a figure already worthy of encyclopedic recognition. His presence across Green Lantern and Adventure Comics places him squarely in the company of DC's most iconic heroes, sharing pages with the likes of Hal Jordan, Superman, and Robin, which speaks to the scale of the threat he represents. Spanning nearly four decades of DC publishing history through 2022, Nekron is the kind of deep-cut cosmic entity that rewards the devoted reader — a dark cornerstone of the DC universe whose appearances, though select, carry genuine weight.