List items
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Snapper Carr is the editor-in-chief of CatCo Magazine at CatCo Worldwide Media.
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Breathtaker is a meta-human assassin working for Leviathan.
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Armek was a White Martian. He was sent to Earth to capture his ex-wife M'gann M'orzz and take her back to Mars.
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Thara Ak-Var is the chief peace officer of Argo City and a childhood friend of Kara Zor-El.
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An unnamed woman was transformed by Lord Technologies into a clone, of sorts, of Supergirl.
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Draaga is a former cage fighter who participated in Roulette's underground alien fight club.
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Robert DuBois, codenamed Bloodsport, is ex-military and a mercenary operating in National City. He was hired by Morgan Edge to bomb the city's waterfront, only to be stopped and apprehended by Supergirl.
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Morgan Edge is the corrupt former CEO of Edge Global and the former top real estate mogul of National City. He was arrested and incarcerated for his crimes of lead poisoning and the attempted murder of Lena Luthor respectively, after his crimes were exposed to the public.
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Gamemnae, also known as Gemma Cooper, is an ancient and powerful alien entity called the "Goddess of Technology" and a high-ranking member of Leviathan.
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Otis Graves was the loyal henchman of Lex Luthor and the brother of the late Mercy Graves. He is a former agent of Project Cadmus and a former member of the Children of Liberty.
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Gor is an underling of General Astra and a member of her and Non's army.
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Dr. Amelia Hamilton is a doctor at the D.E.O.
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Colonel James "Jim" Harper was a corrupt officer of the U.S. Marine Corps and a former member of Project Cadmus.
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Jemm was a powerful alien convict formerly imprisoned on Fort Rozz.
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Mur is an underling of General Astra and a member of her and Non's army.
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The Master Jailer is a Trombusan prison guard who worked on Fort Rozz. After the prison crashed on Earth, he became a rogue vigilante determined to execute all of its escaped convicts.
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Jacqueline Nimball is a criminal and former maintenance worker at Van Kull Maximum Security Prison, where she became associated with Winslow Schott. After his death, Winslow trusted her to continue his work.
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General Non is a Kryptonian criminal, warlord, former military lieutenant, and inmate of Fort Rozz. He was the widower of the late Astra and the second-in-command of their army, though after her death he seems to have taken over her role as commander, becoming Supergirl's enemy.
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James "Jimmy" Olsen is the best friend of Clark Kent and Winn Schott. Always longing for his own brand of justice, James, with the help of Winn, adopted the guise of Guardian.
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Russell "Russ" Rogers, also known as Rip Roar, was an assassin working for Leviathan. After creating an enormous destructive tidal wave, he was stopped by Supergirl and J'onn J'onzz and incarcerated at the D.E.O.. He was later killed by Leviathan.
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Pestilence was a Kryptonian Worldkiller. In the 31st century of an erased timeline, Pestilence was also known as Blight. Because the Legion altered the timeline, she died in 2018 and never became Blight.
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Winslow "Winn" Schott Jr. is a former technician of the D.E.O. who later joined the Legion in the 31st century.
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Selena is a former member of the High Council of Argo and the high priestess of the Children of Juru. Selena was aligned with her late "daughter", Reign, also serving as a hologram that instructed and aided her in the Fortress of Sanctuary in her mission to cleanse the Earth of sin and prepare it for New Krypton.
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Veronica Sinclair, also known as Roulette, is a former prominent socialite in National City, as well as a secret ringmaster who commanded aliens to fight in mortal combats for the entertainment of the rich.
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Tanya Spears is a linguistics teacher residing in National City. She is a former member of the Cult of Rao and a former unwilling member of the Cult of Yuda Kal.
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Jack Spheer was the billionaire CEO of Spheerical Industries and the ex-boyfriend of Lena Luthor.
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Vartox was a Valeronian convict imprisoned on Fort Rozz and an ally of Astra and Non's army.
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Tor is an underling of General Astra and a member of her and Non's army.
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Tezumak is a Jarhanpurian and a member of the secret organization Leviathan.
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