Sinestro

Once considered the greatest Green Lantern in the Corps, Thaal Sinestro of Korugar was ultimately expelled after his fellow Lanterns discovered he had been using his ring to rule his home planet as a dictator. Fueled by his belief that fear is the most effective tool for imposing order, he founded his own rival corps built entirely around that principle.

Few villains in DC's Silver Age canon have cast as long a shadow as Sinestro, who made his debut in Green Lantern #52 in 1967 under the masterful hands of writer John Broome and artist Gil Kane. Across nearly six decades of comics, this iconic antagonist has proven himself one of the most enduring presences in the DC universe, appearing in over a hundred issues spanning Green Lantern, The Green Lantern Corps, and even Detective Comics. He keeps remarkably distinguished company — sharing pages with Hal Jordan, Batman, The Flash, and Clark Kent himself — which speaks to just how central he is to DC's broader mythology rather than any single corner of it. With a key collector's issue to his name and a publishing history stretching from the Silver Age all the way to 2025, Sinestro is the kind of character whose staying power alone tells you everything you need to know: this is someone worth seeking out.