Doctor Light

Few villains have cast such a long shadow over the DC Universe as Doctor Light, who blazed onto the scene in Green Lantern #33 in 1964, conjured by the legendary Silver Age team of Gardner Fox and Gil Kane. Over more than six decades of publishing history, this character has proven a persistent thorn in the side of DC's finest — sharing pages with the likes of Batman, Superman, and The Flash across landmark runs in Justice League of America and The New Teen Titans. With six key-issue appearances flagging this as a collector-significant presence and a remarkable 62-year span of relevance, Doctor Light is far more than a footnote — they're a genuine piece of DC history worth tracking down.