George Swope was an audio engineer at WKBX, who worked on the radio show of Susan LaSalle, better known as "The Siren". Swope became infatuated with Susan, but she never realized his feelings for her, which caused Swope to turn into a criminal to gain her attention. Little is known of how he gained knowledge in bio-terrorism, but he used a deadly plague to threaten Gotham during Susan's radio show, in which the costumed heroes Superman and Batman were appearing together. Superman and Batman were able to find him and stop him from carrying out this threat.

  • This version of Anthrax, including all history and corresponding appearances, was initially erased from existence following the collapse of the original Multiverse in the 1985–86 Crisis on Infinite Earths limited series. However the ending of Convergence retroactively prevented that collapse, saving all the alternate realities, though in an "evolved" form. Even though versions of the character may have since appeared, this information does not apply to those versions.



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