Doctor Death

One of the earliest villains to darken the pages of Detective Comics, Doctor Death made his sinister debut way back in 1939 — conjured by the legendary team of Gardner Fox and Bob Kane in the very series that launched Batman himself. A true Golden Age original, this character has the rare distinction of threatening the Dark Knight from the very dawn of his career, making him a genuine piece of comics history. Over a publishing span stretching nearly seven decades, Doctor Death has resurfaced across titles like Detective Comics, 52, and Batgirl, sharing pages with Bruce Wayne, Batman, and Cassandra Cain's Batgirl along the way. For collectors and historians who love tracing the deep roots of the DC Universe, few figures carry quite the vintage pedigree of this early adversary.