The Spectre is a divine Spirit of Vengeance. He’s considered the “right hand of his God.” The Spectre is an “aspect” of the Presence (the One Above All), joining His Wrath (Eclipso), and His Mercy (Radiant). A former angel named Aztar, he needs a mortal host. In 1940, Jim Corrigan became the latest host of the Spectre. Corrigan was murdered, he was tied up and thrown in a barrel of cement that was then thrown into a river. After his death he went to Limbo. He was bonded with the Spectre Force and given the mission to “confront evil wherever he found it.” When he returned he exacted his revenge on the mobsters that murdered him.
As a servant of God, The Spectre is granted limitless power. He is a being that’s capable of almost anything. He’s second only to the “one.” He can warp and control reality. This allows him to simulate any form of superpower or ability. As a divine agent The Spectre has access to all knowledge. The Spectre is also immortal. His powers can be reduced by the Voice. He also cannot take any action that is “not dictated by the laws that he’s bound to.” He can also be killed by a weapon of sufficient magical force. Each Spectre host manifest a unique Spectre form, some people can recognized the host if they new them in life. After Jim Corrigan, Hal Jordan becomes the next Spectre host, followed by Crispus Allen. In the New 52, the Spectre is once again Jim Corrigan.