Who is Dr. Manhattan?
He was originally Dr. Jonathan Osterman, a nuclear physicist who in 1959 was transformed into one of the most supreme beings of DC Comics, after initially being disintegrated in an Intrinsic Field Subtractor and later reconstructing himself. Following his reanimation, he was immediately pressed into service by the United States government, who gave him the name Doctor Manhattan, after the Manhattan Project. He is the only character in the story that possesses actual superpowers.