mentioned, having fought League members Red Arrow and Vixen. The battle occurs off-panel, but he appears in a panel. During the "Final Crisis" storyline, the new Doctor Polaris can be seen among the recruits of Libra's new Secret Society. It is revealed that businessman and Intergang associate John Nichol, a follower of Neal Emerson's exploits, became the second Doctor Polaris after the death of Neal Emerson. He battles Blue Beetle, holding a definitive advantage, until he is shot in the shoulder by his own daughter. This Doctor Polaris was also among the villains in the ambush of the JSA led by Tapeworm. During the "Blackest Night" storyline, Nichol is reported to have been killed by the Black Lantern version of Emerson during a conversation between Calculator and Lex Luthor. The kill is said to be verified by Cheetah and Calculator noting that Nichol was the only real source of information he had on the new Blue Beetle. Powers and abilities Both versions of Doctor Polaris possess the power to generate and channel electromagnetism naturally or artificially. They can lift/move heavy metallic objects, control ferrous particles in the atmosphere, alter Earth's electromagnetic field, levitate/fly at subsonic speeds, and project forms of energy related to magnetism. They are able to manipulate the metals deep in the Earth to create earthquakes, volcanic eruptions, or other disasters. They can also sense metals around them, determine on the distance. The Neal Emerson version of Doctor Polaris is strong enough to bring the Justice League Watchtower down on Earth or overwhelm constructs created by Green Lantern Power Rings via metals. He was shown to have lost his powers from extreme heat exposure. As Emerson, he has extensive knowledge of physics and medical science. The John Nichol version of Doctor Polaris had all his predecessor's powers and more, such as the ability to create localized magnetic storms in people's brains, thus killing them instantly. As Nichol, he is also a ruthless businessman. In other media Doctor Polaris appears in Justice League Unlimited, voiced by an uncredited Michael Rosenbaum. This version is a member of Grodd's Secret Society who received augmented powers from Lex Luthor, who also included fail-safes to override the latter's powers and prevent him from betraying the former. Doctor Polaris appears in Batman: The Brave and the Bold, voiced by Lex Lang. Additionally, a heroic alternate universe counterpart makes a non-speaking appearance in the episode