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Subsequent appearances inconsistently depicted him as either a genuinely good guy or a genuinely bad guy, sane or insane, differing from writer to writer.
Adaptational Heroism: In the comics, Jason Todd, after his death and resurrection, started out as an acolyte of the League of Assassins who took over Gotham's criminal underground, leading up to his plan to force Batman into killing the Joker. Adaptational Badass: While most incarnations of Jason Todd are badasses in their own right, none of them are at the level of this incarnation, who leads an army of professional killers specifically trained by him to kill Batman and manages to take over Gotham in mere hours. Little is known about this mysterious new foe, apart from his name, except that he holds a great contempt for the Dark Knight and will do everything in his power to ensure the Batman's demise.
The Arkham Knight is a new villain introduced in Batman: Arkham Knight.