Dr. Polaris

Few villains carry the crackling menace of Dr. Polaris, a Silver Age DC creation who first menaced readers in Detective Comics #338 back in 1965, conjured by the legendary team of Gardner Fox and Sheldon Moldoff. Over more than three decades, this magnetic threat proved durable enough to rack up key-issue appearances and cross paths with some of DC's heaviest hitters — Green Lantern, Superman, and John Stewart among them — a rogues' gallery of heroes that speaks to just how seriously the DCU takes him as a threat. His footprint stretches across landmark titles including Crisis on Infinite Earths, Damage, and The Ray, marking him as a villain with real staying power beyond any single corner of the DC universe. For collectors who love a classic Silver Age antagonist with genuine teeth and a résumé to match, Dr. Polaris is absolutely worth tracking down.