The Injustice League are a series of unrelated villainous counterparts to the Justice League. Their original team was formed by Agamemno during The Silver Age. Major Disaster led his own version of the team to fight Justice League International, although they were deputized by Maxwell Lord as Justice League Antarctica. Lex Luthor, the Joker and Cheetah established their own much larger organization as Injustice League Unlimited. The Injustice League were created by Keith Giffen and J.M. DeMatteis, first appearing in Justice League International #23. (1989) Historically, the first team called Injustice League of America, wasn't a DC Comics group, but a team of Dynomutt villains in the 14th episode of his TV show.