T. O. Morrow

Few villains in DC's Silver Age roster carry quite the same eerie conceptual weight as T. O. Morrow, who first menaced the pages of Justice League of America #64 back in 1968, conjured by the legendary Gardner Fox and Dick Dillin. A figure whose very name hints at something ominous on the horizon, Morrow has spent over five decades haunting the DC Universe, crossing paths with titans like Green Lantern, The Flash, Batman, and Wonder Woman across landmark series including 52 and JLA. His longevity alone — nearly six decades of appearances — speaks to a villain who has genuinely earned his place in the canon, and collectors will want to note that key-issue recognition among his appearances marks him as more than a footnote. If you're building out your Silver Age DC knowledge or chasing the deeper cuts of JLA history, T. O. Morrow is exactly the kind of richly layered antagonist worth tracking down.