The Anti-Monitor is a supervillain appearing in American comic books published by DC Comics. He served as the main antagonist of the 1985 DC Comics miniseries Crisis on Infinite Earths and later appears as an enemy to the Green Lantern Corps and the Justice League. In 2009, Anti-Monitor was ranked as IGN's 49th-greatest comic book villain of all time. LaMonica Garrett portrayed the character as the main antagonist in the Arrowverse crossover "Crisis on Infinite Earths", as well as The Monitor. Publication history The Anti-Monitor first appeared in Crisis on Infinite Earths #2 (although he remained in shadow until Crisis on Infinite Earths #5) and was created by Marv Wolfman, George Pérez, and Jerry Ordway. He was believed to have been destroyed in Crisis on Infinite Earths #12 only to return after a long absence in Green Lantern: Sinestro Corps Special #1 (August 2007). Fictional character biography Origins During the Crisis on Infinite Earths, it was revealed how the existence of all parallel universes in the Multiverse came to be, including the positive matter multiverse and also the anti-matter universe, and how the Monitor and the Anti-Monitor came into existence; when the menace posed by the Anti-Monitor became apparent, several villains were sent back in time to stop him, but were defeated by Krona and the other Oans. In a final revision, it was established that it increased entropy in the universe, shortening its existence by a billion years (see heat death). In any event, two beings were created, one on the moon of Oa and the other on the moon of Qward. On the moon of Oa, the being known as the Monitor was instantly aware of his counterpart, the Anti-Monitor (although his official name is the Monitor in his own universe, and he is often addressed as such, the name Anti-Monitor is used to distinguish him from his heroic positive matter counterpart). By this time the Anti-Monitor had quickly conquered Qward, as well as the rest of the anti-matter universe. In searching for other places to conquer, he also became aware of his counterpart. These two beings battled for a million years, unleashing great powers against each other, but to no avail. At the end of their stalemate, they simultaneously attacked one another, rendering both inert for nine billion years. In Final Crisis, it was revealed that, in the wake of the birth of the original Multiverse, an