Doctor Polaris

A Silver Age villain with a magnetic pull on DC history, Doctor Polaris made his debut in Green Lantern #65 back in 1968, conjured to life by the legendary Gardner Fox and Mike Sekowsky. Over more than five decades he's remained a fixture in DC's rogues' gallery, most at home in the pages of Green Lantern where he's clashed with the likes of Hal Jordan and even The Flash. With a key collector's issue to his name and appearances stretching all the way to 2024, Doctor Polaris is the kind of enduring Silver Age threat that rewards any fan willing to dig into DC's deep, gloriously weird history.