The Injustice League are a series of unrelated villainous counterparts to the Justice League . The team appears in American comic books published by DC Comics . 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.