Owlman

Born in the fertile imagination of Silver Age architect Gardner Fox and artist Mike Sekowsky, Owlman made his sinister debut in Justice League of America #29 in 1964 — stepping out of the shadows as one of DC's most intriguing dark reflections of heroism. A creature of the multiverse, he haunts the pages alongside figures like Ultraman, Power Ring, and Johnny Quick, a rogues' gallery that signals just how twisted and compelling his corner of the DC universe truly is. His appearances span an impressive nearly five decades, touching landmark series from Crisis on Infinite Earths to Countdown, and at least one of those issues carries genuine key-issue weight for collectors. Eleven catalog appearances may sound modest, but for a character who embodies the eerie promise of what lies on the wrong side of the moral mirror, Owlman casts a very long shadow indeed.