||Action Comics #13 (June 1939)
||He was originally the first recurring nemesis to the Golden Age Superman and possibly the first comic book supervillain, Ultra-Humanite went on to battle the Justice Society of America before setting his sights on the Justice League of America with the Secret Society of Super-Villains. he invented a process to transfer his mind between bodies. Later, in possession of Johnny Thunder's body, Humanite conquered the Earth and used the League and Society as his personal army, before he was shot in the head.
||Action Comics #23 (April 1940)
||Superman's nemesis, when the Man of Steel joined the League, Luthor saw it as a direct challenge to him and formed two Injustice Gangs. Pre-Crisis he was a mad scientist, Post-Crisis a corrupt billionaire.
||Justice League of America #7
||Aliens that lost a war in a distant Solar System 100,000 years ago. Their weapons were taken away, but they sent a probe through the Universe to record all weapons, enabling them to find one able to defeat their foes. They placed themselves in suspended animation for 100,000 years. Their ship instead landed in Happy Harbour, Earth. Assuming human form, they set up a Funhouse in a newly opened fair and abducted people, including Snapper Carr (League mascot), to another planet. The JLA rescues Carr. In their civilian identities the JLA visit the Fair, where the Flash, and then Green Lantern are captured. The aliens duplicate their bodies without their powers. Wonder Woman and Green Arrow are also captured by an alien using Wonder Woman's magic lasso to hold them. The four are held in energy-sapping spirals. The duplicates claim that Xotar is the villain and send Superman, Batman, and the Martian Manhunter 10,000 years into the future to stop him, while they send Aquaman inside to capture him. The Leaguers escape through a mirror which warps their bodies. The probe lands and in their human forms the aliens try to escape with it. Aquaman helps them, and restores Green Lantern's memory by reciting his oath. Green Lantern sends the aliens back into their ship, sending them into another 100,000 year sleep. He then restores the members, and the probe is placed in the Trophy Room.
||Batman #1 (Spring 1940)
||Batman's nemesis, conned Snapper Carr into turning over his key to League headquarters and ambushed the team with the weapons of their greatest foes, fighting the group to a standstill. Later, thinking himself dying of cancer, Joker plunged the world into anarchy by enslaving Earth's villains with his Joker venom.
||Green Lantern #10 (Winter 1943)
||A caveman that was exposed to a meteorite that gave him immortality, and who has manipulated history, such as being a Pharaoh in Egypt and assisting the murder of Julius Caesar, he faced the first Green Lantern and then the Justice Society, becoming a founding member of the Injustice Society of the World, Savage turned his attention to the League in the wake of the former group's retirement. He gathered Clayface, Thorn, Eclipso, and Solomon Grundy against the team during its first year.
||All-American Comics #61 (October 1944)
||A super-strong undead monster risen from a swamp where Cyrus Gold had died many years earlier, who battles Green Lantern and is resistant to his ring due to the wood in his body. A frequent sparring partner to the Justice Society and often drafted in battles with the League, Grundy returned in one of his incarnations with greater intelligent, seeking true immortality by transferring his brain into Amazo's body.
||All Star Comics #34 (March 1945)
||Dangerous magician who learned many spells such as illusions from a Tibetan monk he would later murder. He gathered the first two Injustice Societies. A frequent opponent of the Justice Society, Wizard would lead the Secret Society of Super-Villains against the League, switching bodies with them and learning their identities, only to have his memory wiped afterwards. With memories restored by Despero, he led his fellow villains against Superman for revenge.
||All Star Comics #35 (June–July 1947)
||Generally an enemy to the Justice Society, Degaton organized the Crime Syndicate to steal atomic missiles bringing the United States and Russia to near war. The combined efforts of the Justice League, Justice Society, and All-Star Squadron stopped him.
||Wonder Woman #37 (September–October 1949)
||A powerful witch who gained her powers from the goddess of witchcraft Hecate, and who has a talent for transforming humans into beasts. Generally a Wonder Woman enemy, Circe would come into conflict with the League on several occasions including during War of the Gods, a bid to claim the Spear of Destiny, and during Amazons Attack!
||Captain Marvel Adventures #125 (October 1951)
||Ruler of the Submen who ruled Earth until humanity overthrew them thousands of years ago, killing most of them. Kull was a frequent foe to Captain Marvel due to his superhuman strength, advanced technology and desire to wipe out humanity, Kull masterminded a caper where he sneaked into the Rock of Eternity and captured Shazam and the gods/goddesses that granted power to the Marvel Family using a ray that slowed down their impulses, with only the swift Mercury escaping and warning the other heroes. Allying with Mister Atom, Brainiac, Queen Clea, Penguin, Blockbuster, Ibac, Joker, Weeper, Shade, and Dr. Light, Kull sought to eliminate humanity on all three Earths and it took the combined effort of the Justice League, Justice Society, and Squadron of Justice to stop him.
||Action Comics #242 (July 1958)
||One of Superman's gravest threats, an alien genius Brainiac faces the League on several occasions such as Panic in the Sky and Brainiac 13's Y2K.
||Detective Comics #259 (November 1958)
||An enemy of Martian Manhunter that organized a prison break and led Captain Cold, Clock King, Electric Man, Puppet Master, and Professor Menace against the League.
||The Flash #106 (May 1959)
||One of a race of super-intelligent gorillas with mental powers. A Flash rogue, Grodd would face the League on several occasions such as when he led the Secret Society of Super-Villains, JLApe: Gorilla Warfare!, and when he enslaved the minds of the International Ultramarine Corps.
||Brave and the Bold #28 (February - March 1960)
||A large alien starfish that creates smaller copies of itself that attach themselves to others and bring them into the thrall of the original. First foe the League fought as the League.
|The Weapons Master
||Brave and the Bold #29 (May 1960)
||A criminal from the 120th century, Xotar went back in time with a cache of weapons to battle the League, believing the one to defeat them would be invincible and able to battle the Intersolar police due to a book written by Wonder Woman which seemed to indicate he had defeated the JLA. He was defeated, as the book had been damaged where it recorded his defeat, and sent back to his time period. He would later appear seeking to obtain Green Lantern's ring and again behind a cult that worshiped the League.
||The Brave and the Bold #30 (June 1960)
||Built by Professor Ivo, Amazo has the powers and equipment of Wonder Woman, Green Lantern, Flash, Martian Manhunter, and Aquaman with the ability to copy the powers of metahumans it comes into contact with.
||The Brave and the Bold #30 (June 1960)
||Ivo constructed Amazo in pursuit of immortality.
||Justice League of America #1 (October 1960)
||The tyrant of Kalanor, Despero was a frequent opponent to the League with his hypnotic abilities. His abilities were upgraded by the Flame of Py'tar and later killed Leaguer Steel.
||Justice League of America #2 (December 1960)
||The Lord of Misrule, Saturna aligns with Simon Magus to conquer Magic-Land.
||Justice League of America #2 (December 1960)
||The Evil Magician, Simon Magus, in his bid to conquer Magic-Land aligns with Lord Saturna and the Troll King to steal scientific devices from Earth to defeat the realm's ruler Merlin. When artificial devices stop working on Earth due to Magus' efforts, the Justice League become involved in Magus' war.
||Justice League of America #2 (December 1960)
||Attempting to overthrow the wizard Merlin, Troll King aligns with Simon Magus to conquer Magic-Land.
||Justice League of America #3 (February 1961)
||Ruler of Alstai, Hyathis was at war with three other planets until Kanjar Ro enslaved the League to defeat Hyathis and the other planets once and for all. In the end, the League toppled all of the warlords. She could breathe underwater and command plant life.
||Justice League of America #3 (February 1961)
||Using his Gamma Gong to enslave the League, Ro as the despot of Dhor sought to conquer neighboring planets he was consistently at war with, threatening to leave all Earth in a paralyzed state. He would return to face the League many times.
||Justice League of America #3 (February 1961)
||Ruler of the planet Mosteel deposed by the Justice League.
||Justice League of America #3 (February 1961)
||Ruler of the planet Llarr deposed by the Justice League.
||Green Lantern #5 (March–April 1961)
||Primarily an enemy of Green Lantern, the Hector Hammond repeatedly fought the League over the years due to a meteor that evolved him giving him psionic powers, though left him unable to walk.
|Phantom Zone Villains
||Adventure Comics #283 (April 1961)
||Criminals trapped in a vast prison discovered by Kryptonian scientists where they are able to see and hear within the universe but generally unable to interact with it. While largely a problem for Superman, prisoners of the Zone have been known to escape and bring Earth's heroes against them. One such escape was led by General Zod, Faora Hu-Ul, Jax-Ur, Kru-El, and Va-Kox that manipulated depowered Kryptonian (and former Zone inmate) Quex-Ul into freeing the villains therein. Upon release, they enact a preemptive strike on the Justice League by tossing their satellite out of orbit and attacking the group's members. Post-Crisis, Zod leads the military forces of New Krypton and, upon the planet's destruction by Lex Luthor, leads Kryptonians loyal to him (notably Ursa and Non, formerly of the Phantom Zone) against Earth and its heroes.
||The Brave and the Bold #35 (April–May 1961)
||Hawkman foe and drafted to battle the Justice League alongside other villains on several occasions, Matter Master would battle the League when he tried to eliminate Golden Eagle.
||Justice League of America #5 (June 1961)
||First impersonated Green Lantern using anti-gravity discs to try capturing the League. Later with the Materioptikon, Destiny was able to turn dreams into reality under his will. He has organized Joker and Chac and later Penguin, Dr. Light, Lex Luthor, Tattooed Man, Cutlass Charlie, Captain Boomerang, Floronic Man, and I.Q. against the League.
||Green Lantern #7 (July–August 1961)
||Nemesis to Hal Jordan and rogue Green Lantern, Sinestro would frequently battle the League as part of villainous groups until forming the Sinestro Corps who used yellow power rings and going to war with the Earth and its flagship team in the Justice League.
||Justice League of America #6 (August–September 1961)
||A frequent sparring partner of the League able to manipulate his own luck, Fortune formed the original Royal Flush Gang. Under the guise of Mister Memory, Fortune brought together Batman, Hector Hammond, Pied Piper, Sea Thief, Angle Man, and Dr. Davis to defeat the Justice League.
||Aquaman #1 (January–February 1962)
||A reality-warping imp of the 5th dimension like Mister Mxyzptlk or Bat-Mite, Qwsp was Aquaman's fan and accompanied him. Later, when Aquaman become rougher and more rugged, Qwsp followed suit in turn becoming a menace.
||Justice League of America #9 (February 1962)
||When the heirs to the Appelaxian fought on Earth to decide who would rule, they inadvertently brought the Justice League together for its first time in order to stop them. They would return on several occasions to enslave the Earth.
|The Demons Three
||Justice League of America #10 (March 1962)
||Brothers that ruled the galaxy a billion years ago until they were banished by the Timelss Ones. Felix Faust summoned their power using a bell, wheel, and jar they had created for this purpose, only to be foiled by the League and they later worked with Neron against the League, trying to bring the Moon down upon Earth. One strange attack involved them animating the clothes of Killer Moth, Pied Piper, Dagon, the Mask, and Doctor Polaris against the League. On one occasion, they teamed with Mordru against the League, Society, and Legion of Super-Heroes.
||Justice League of America #10 (March 1962)
||A centuries-old mage obsessed with power who sold his soul several times and even sold the soul of his son only to be defeated repeatedly by the League.
|The Lord of Time
||Justice League of America #10 (March 1962)
||A time traveler from the year 3786 that consistently comes to our time to menace the League hoping to invade their century, now going by the name Epoch.
||Justice League of America #12 (June 1962)
||A scientist turned villain, he went on to fight the League repeatedly before menacing the Teen Titans and reached an all-time low when he was tranced by Little Boy Blue and the Blue Boys. It was revealed after raping Sue Dibny, Zatanna under League orders lobotomized the villain. During the events of Identity Crisis, his memory was restored and he took Black Adam's seat on the Society.
||Green Lantern #14 (July 1962)
||Primarily a Green Lantern foe, Sonar became a global threat when he laid claim to the Soviet Union leading an army of brainwashed metahumans such as the Global Guardians, Royal Flush Gang, Eurocrime, and Justice League Antarctica against Justice League Europe, the Justice Society, and a small army of allies.
||Justice League of America #13 (August 1962)
||An alien from the planet Skarn who uses a device that will drain the life force of the universe. Brann also employs a device that makes perfect robot duplicates of his enemies to use against his foes.
||Justice League of America #16 (December 1962)
||Using a gang equipped with musical instruments that compel those in earshot to dance, the Maestro tried to defeat the Justice League by encasing them in indestructible bubbles.
||Justice League of America #20 (June 1963)
||A gigantic android bent on destroying Earth.
||Justice League of America #21 (August 1963)
||When the Justice Society and Justice League teamed together, their enemies banded together to oppose them, using a device the Fiddler had discovered to travel between worlds. The group was made up of Shade, Icicle, Fiddler, Wizard, Felix Faust, and Chronos. The group would reform later with Doctor Alchemy in place of the Shade.
||House of Secrets #61 (August 1963)
||The original Wrath of God, Eclipso was trapped in the Heart of Darkness and went on to live through those that happened upon shards of the large jewel. Eclipso has fought Earth's heroes several times including during Eclipso: The Darkness Within.
||Green Lantern #24 (October 1963)
||Generally an enemy of the Green Lantern, the Shark would join groups of villains against the Justice League on several occasions. He would go on to battle the League using creatures he evolved and brought under his command.
||Justice League of America #23 (November 1963)
||Zazzala, queen of Korll, fought the League multiple times in trying to expand her empire.
|Justice League International #16 (August 1988)
||Ruler of Bialya, she brainwashed the Global Guardians and fought the League.
|JLA: Incarnations #6 (December 2001)
||Beatriz took over her sister's rule of Bialya and used the robotic Extremists that crossed swords with Extreme Justice.
|Kraad the Conqueror
||Justice League of America #25 (February 1964)
||An alien from the planet Kraanal, Kraad followed three Sfarlians across the universe destroying planets they visit.
|T. O. Morrow
||The Flash #143 (March 1964)
||A brilliant scientist who created the Red Tornado and would menace the Justice Society and Justice League.
||Justice League of America #27 (May 1964)
||A cosmic entity who was being made inert by the efforts of the Justice League. Making its members unable to work together, the League was able to activate Amazo as a loophole to I's powers defeating the entity.
||Justice League of America #28 (June 1964)
||Criminal mastermind and inventor that drafts super-villains Matter Master, Tattooed Man, and the Top into his plots.
||Justice League of America #29 (August 1964)
||An evil version of the Justice League on a parallel Earth.
||Justice League of America #31 (November 1964)
||Hoodlum Joe Parry gets a hold of a machine called the Panacomputer that makes an android named Super-Duper with abilities of Hawkman, Green Lantern, Flash, Wonder Woman, and Batman to do his bidding.
||Justice League of America #32 (December 1964)
||Axel Storm developed a helmet that absorbed stellar energy and when worn allowed him the ability to develop virtually any technological device or mechanism limited only by his imagination. However, the helmet would drive him mad and he sought the Justice League to witness him murder the man he believed killed his brother Fred. Later learning his brother (who would temporarily become Brain Storm II in the future) was alive and the helmet distorted his perception, Brain Storm would return occasionally to menace the League.
||Justice League of America #33 (February 1965)
||A conqueror able to turn humans into aliens under his thrall.
||Justice League of America #41 (December 1965)
||Through use of psycho-chemicals, Key expanded his mind and developed a key-theme for his criminal operations facing the League.
|Warlock of YS
||Green Lantern #42 (January 1966)
||A powerful wizard that switched bodies with Green Lantern and defeated the Justice League.
||Justice League of America #42 (February 1966)
||A being of incalculable power that roamed the universe wielding its might for its amusement, such as capturing alien beings. Happening upon the League during their battle with Kraad the Conqueror, he followed and observed them, inspired by their fight for justice. When they offered membership to Metamorpho, it battered the hero and demanded League membership for itself. When refused, it would return to menace the League as an enemy.
|Royal Flush Gang
||Justice League of America #43 (March 1966)
||Several incarnations of a group on a playing card theme to face the League many times.
||Justice League of America #45 (June 1966)
||Synthetic humans made from plastalloy that were essentially immortal and indestructible that menaced the League.
||Justice League of America #46 (August 1966)
||A powerful entity from the Anti-Matter Universe that destroyed all matter it touched. The combined power of the Justice Society and Justice League defeated him.
||Justice League of America #71 (May 1969)
||White martian dictator that followed Martian Manhunter to Earth in order to destroy him but was repelled. He then sought genocide on his world which brought the League to his doorstep.
||Justice League of America #73 (August 1969)
||A living star that tries to destroy Earth-Two's universe and battles the Justice League and Justice Society.The heroes manage to destroy him, but at a price.
||Justice League of America #80 (May 1970)
||A Thanagarian that believes the universe is ending and is trying to collect souls in his Ghenna Box to survive the event.
||Justice League of America #81 (June 1970)
||Causing those that are sane to go mad in his vicinity, Jest-Master travels to worlds to spread insanity.
||Superman's Pal Jimmy Olsen #134 (November 1970)
||Despot ruler of Apokolips and its New Gods, his search for the Anti-Life Equation brought him to Earth and into conflict with its heroes many times.
|Ra's al Ghul
||Batman #232 (June 1971)
||An international terrorist, Ra's came into conflict with Batman after the hero turned down his offer to take his place in death. During the events of JLA: Tower of Babel, Ra's' conflict escalated to the Justice League.
||Justice League of America #94 (November 1971)
||When members of the League are on the trail of the League of Assassins, the Sensei assigns Merlyn to begin eliminating its members. Merlyn would return to face the Justice League as part of the Anti-Justice League and Killer Elite.
||Mister Miracle #6 (January–February 1972)
||A conman, Flashman managed to take control of the Secret Society of Super-Villains as the Wizard's puppet and has returned numerous times as a thorn in the side of Earth's heroes.
||Justice League of America #96 (February 1972)
||An adult Sun-Eater, Starbreaker is an energy vampire of immense strength that comes to planets to consume it to sustain his life.
||Justice League of America #100 (August 1972)
||The adult version of the universe Qwewq, Neh-Buh-Loh has immense power with his fate entwined with the Seven Soldiers of Victory as the lackey to Sheeda queen Gloriana Tenebrae. The League would enter Qwewq during its larval form and would face the adult version along with the Justice Society when it hurls the Seven Soldiers across time.
|Morgaine le Fey
||The Demon #1 (September 1972)
||Primarily a foe to Etrigan, Morgaine would try to usurp Wonder Woman's role in the Trinity beside Enigma and Konvict who sought Batman and Superman's roles, respectively. Earth's heroes, led by the League, try to stop her before and after their transformation.
|Klarion, the Witch Boy
||The Demon #7 (March 1973)
||Frequent sparring partner of Etrigan, Klarion joined with the Contessa during Young Justice: Sins of Youth to create distrust of young heroes and turned adult heroes (and some villains) into children and teenage heroes into adults.
||Justice League of America #111 (May–June 1974)
||The first group of the League's enemies to come together against them that has returned repeatedly, in the most recent incarnations led by Lex Luthor.
||Justice League of America #111 (May–June 1974)
||The original mastermind of the Injustice Gang, Libra would later become the prophet of Darkseid and organized Earth's villains during Final Crisis.
||Action Comics #443 (January 1975)
||A group of the League's worst individual enemies organized by Queen Bee that captured the entire League save Superman who outsmarted Brainiac and saved his allies.
||Justice League of America #117 (April 1975)
||Employing a plague that travels through being in the vicinity of someone infected, the Equalizer makes all those afflicted equal in power and ability.
||Justice League of America #123 (October 1975)
||A comic book writer on Earth-Prime that gets on a duplicate of the Cosmic Treadmill and ends up on Earth-Two. Gaining mental powers from the transition, Bates falls under the thrall of the Wizard where he defeats the Justice Society, makes them appear as the Injustice Society, and has the heroes die at the hands of the Justice League.
||Kobra #1 (February 1976)
||A vast, ancient criminal organization that crossed swords with Earth's heroes, targeting the League when they captured their headquarters on one occasion and shuffles their minds between their bodies on another.
||Justice League of America #128 (March 1976)
||A fear parasite that had destroyed entire worlds to feed on the fear living creatures experience at their demise.
|Tales of the Green Lantern Corps #1 (May 1981)
||One of the embodiments of death in the multiverse, Nekron become aware of our universe due to the machinations of Krona and sought to make it part of his realm of the dead. Originally stopped by the Green Lantern Corps, he would return during the events of Blackest Night.
|Secret Society of Super Villains
||Secret Society of Super Villains #1 (May 1976)
||An ever-changing alliance of super-villains under several leaders during its existence that often blended major villains with lower tier contemporaries.
||Super Friends #1 (November 1976)
||A group inspired by the Justice League and their mentorship of Wendy and Marvin to bring young people into the super-villain experience as a mentorship. Membership featured Poison Ivy, Penguin, Toyman, Cheetah, Human Flying Fish, and their sidekicks.
||Justice League of America #140 (March 1977)
||Former agents of the Guardians of the Universe, the Manhunters sought to discredit their Green Lantern Corps by framing Hal Jordan for destroying an inhabited planet but are foiled by the Justice League. The Manhunters would return during the events of Millennium.
||Justice League of America #142 (May 1977)
||An artificial intelligence born from the Earth's communication transmissions that tried to conquer Earth several times.
|Manhunter/The Privateer/Star Tsar
||1st Issue Special #5 (August 1975) (as Manhunter)
Justice League of America #143 (June 1977) (as The Privateer)
Justice League of America #149 (December 1977) (as Star Tsar)
|One of the Terrans assimilated into the Manhunters, Mark Shaw battled the Justice League for his masters. However, he would turn on his order and became the hero Privateer, infiltrating the Justice League. In reality, he was working under orders from the Key and was really the Star-Tsar (though a brainwashed Snapper Carr would also assume the identity). The Star-Tsar identity would later be adopted by astronomer Richard Rigel.
||Super Friends #6 (August 1977)
||Employing the same white dwarf star shrinking technology as the Atom, Wilson Gable trains animals, shrinks them, and carries them around to use in robberies.
||Teen Titans #53 (February 1978)
||Energy creature that feeds on negative emotion captured by the League that escaped later to dominate their minds. The group's teen sidekicks were forced to battle their mentors, exile Antithesis to Limbo, and afterward officially formed the Teen Titans.
||Justice League of America #151 (February 1978)
||A group of individuals empowered by Professor Amos Fortune with similar powers to the Justice League that siphon the heroes' powers. Membership includes Acrobat, Racer, Strongman, Crier, Cyclone, Shrinking Man, and Water King.
|Fiend With Five Faces
||Justice League of America #156 (July 1978)
||An amalgamation of five deities of Oceania (Rongo the Jester, Dangora the Wise, Ku the War god, Mauri the Love goddess, and Tane the Nature god) four of which rise to reign anarchy on Earth.
||Justice League of America #156 (July 1978)
||An ancient love goddess of Oceania, Mauri enslaves the male members of the Justice League on the eve of Ray Palmer's nuptials to Jean Loring forcing them to battle female contemporaries assembled for the event.
|Legion of Doom
||Challenge of the Super Friends (September 9, 1978)
||Created for the Super Friends, the Legion of Doom was composed of some of the League's worst individual nemeses. The team would make its canonical appearance under Brainwave Jr. against Extreme Justice but the original line-up was an influence in stories like Justice and Injustice League Unlimited.
||Justice League of America #163 (February 1979)
||After being permanently deafened by one of Green Arrow's sonic arrows, Russian musician the Amazing Allegro used a book of spells to make his synthesizer create demons when played to menace the Justice League of America. General Anton Gorki would later capture Allegro and employ his synthesizer against the Justice League.
||Justice League of America #179 (June 1980)
||Operating out of the Studio, a local disco, Satin Satan is possessed by the demon Sataroth that's been kidnapping young people.
||The Warlord #59 (July 1982)
||Brother of Atlantean wizard Arion, he placed himself in suspended animation and fought the League inevitably being destroyed by the team.
||Justice League of America #221 (December 1983)
||Rex Rogan's company Repli-Tech Industries was going bankrupt and in a radical move had himself and his board of directors turned into man-animal hybrids called the Ani-Men. Establishing a venue called the Arena, the Ani-Men slaughtered combatants for the amusement of the ultra-rich. When the League went to shut the operation down, its members were trounced by Rex and his forces. In a second battle, the League learned the process that transformed the Ani-Men was ongoing and inevitably the hybrids turned completely into mindless beasts.
||Justice League of America #224 (March 1984)
||Able to duplicate and magnify the metahuman abilities of organic creatures in close vicinity of him, Joel Cochin sought to destroy all those he viewed as being inferior.
||Justice League of America #225 (April 1984)
||Cult bent on world domination so far as to summon the demon Hellrazer, the deity Set, and genetically-engineered dragons. Former leaders include Lords Gravesend, Arsenic, and Claw.
||Justice League of America #225 (April 1984)
||A demon summoned by the cult Fiatlux towards world domination that possesses Zatanna.
||Justice League of America #228 (July 1984)
||Leader of the Mars II settlement, upon learning the Earth vessel Viking II landed on Mars (which he observed as trying to steal Martian resources), the Marshal declared war on Earth.
||Justice League of America #235 (February 1985)
||Formed by the powerful and malevolent Overmaster, they were his puppets to test a world's worthiness to exist. The group would later be called the Cadre of the Immortal.
||Crisis on Infinite Earths #6 (September 1985)
||The force behind Crisis on Infinite Earths, Anti-Monitor watched over the Anti-Matter Universe as the Monitor did with the multiverse created when Krona broke the taboo of watching the universe's creation. It would try to conquer the multiverse but meet defeat and return due to the efforts of Alexander Luthor, Jr. during Infinite Crisis and later become the Guardian of the Sinestro Corps and fuel for the Black Central Power Battery.
||Captain Atom #1 (March 1987)
||An important figure in the Atom Project and Task Force X, Wade Eiling would actively engage the League after the Ultramarine Corps assist him in obtaining one of the Shaggy Man bodies. Transplanting his brain successfully into it, he became the villainous General and faced the heroes repeatedly.
||Justice League #1 (May 1987)
||A high level leader in Checkmate, Lord would have his mind controlled by the entity Kilg%re to form a new version of the Justice League. He would stay on in his managerial capacity to make the team weak such that his plans to eliminate Earth's metahumans could be hastened. His efforts with the OMAC Project and having Superman slaughter his League teammates was interrupted when Wonder Woman murdered him.
||Justice League #2 (June 1987)
||A sorcerer given the power to collect the dream energy of those near death by the Laws of Order but over time began to attack the living and caught the ire of Doctor Fate and his League colleagues.
|Justice League America #31 (October 1989)
||Replacing the first after his demise, the second Gray Man decided to initiate suicide on a global scale with the help of Dr. Irwin Teasdale and savor the dream energy for himself to conquer the world and cosmos. While the League tried to stop him, inevitably it was the intervention from the Lords of Chaos and Order and the Spectre that were able to defeat him. The Lords lobotomized the servant who would now mindlessly attend to his duties.
||The Flash #3 (August 1987)
||An electro-mechano-organic alien lifeform that sought to dominate Earth's electrical systems. When this failed, it controlled Max Lord's mind and sought to dominate the world through cunning by forming and controlling the Justice League.
||Justice League International #14 (June 1988)
||An intergalactic trader that kidnapped Mister Miracle to open up trade with Apokolips and faced the Justice League who sought their friend.
||The Weird #1 (July 1988)
||A race of malevolent beings that enslave and openly feed on the energy of the Zarolatts. When they seek to enter other realms for the purpose of conquest, a Zarolatt escapes, comes to Earth, and animates the dead body of Walter Langley. Dubbed the Weird, he seeks to warn the Justice League however two Macrolatts possess Superman and Nuklon, increasing and expanding their already significant powers. With the Weird, the League is able to triumph over the invaders and free their comrades.
||Justice League International #23 (January 1989)
||Historically, a group of D-List villains led by Major Disaster but chronologically a villainous group formed by the alien tyrant Agamemno and made up of some of the League's greatest individual nemeses. The group would later resurface led by Luthor, Joker, and Cheetah with a virtual army of villains.
||Justice League Quarterly #1 (Winter 1990)
||A version of the Crime Syndicate for the Justice League at the time. Membership includes Fiero, Frostbite, Elasti-Man, Element Man, Scarab, and Slipstream (analogies for Fire, Ice, Elongated Man, Metamorpho, Blue Beetle, and Flash, respectively).
||Justice League America #36 (March 1990)
||A parody of Galactus (so far even a parody of Silver Surfer in Scarlet Skier), Nebula fancies himself an artist and redesigns entire worlds with his Nebulamobile.
||Justice League Europe #15 (June 1990)
||A powerful group of villains from the planet Angor based on Doctor Doom, Magneto, Dormammu, Doctor Octopus, and Sabretooth. After their demise, Mitch Wacky built robotic duplicates of them for a theme park that became self-aware and traveled to Earth to battle their enemies Silver Sorceress and Blue Jay, who had joined the League. They would return repeatedly to face the League (once as part of the Cadre).
||Superman: The Man of Steel #18 (November 1992)
||An artifact of Krypton predating its society, Doomsday is the ultimate weapon that seeks Kryptonians and their demise at his hands. Arriving on Earth, he faces the League and defeats them chiefly. He would return on several occasions, sometimes against the League much to their chagrin.
|Dr. Destiny's Justice League
||Justice League America #72 (March 1993)
||An alternate reality Justice League created by Dr. Destiny that was ruthless in their pursuit of justice (similar to the Justice Lords) and featured Martian Manhunter, Green Lantern, Hawkman, Flash, Atom, Red Tornado, Black Canary, Firestorm, and Green Arrow (whom questioned the League's tactics). Batman was a member but resigned when he saw the direction the group was taking.
||Justice League Task Force #10 (March 1994)
||A team of white supremacists that faced the League and were later folded into the Cadre.
||Justice League International #65 (June 1994)
||A United Nations sanctioned group composed mostly of villains not unlike the Suicide Squad formed in case the government needed to defeat the Justice League. Membership featured Peacemaker, Ultraa, Mirror Master, Chromax, and Spellbinder.
||Superman: The Man of Tomorrow #1 (July 1995)
||Contessa Erica Alexandra del Portenza is the ex-wife of Lex Luthor, mother to his daughter Lena Luthor, claims to be over 1900 years old, and the director of the Agenda, a clandestine organization for cloning and DNA modification that absorbed Darkseid's Evil Factory and rivals Project Cadmus. Originally an enemy to Superboy, they became a consistent threat to the Young Justice League and Contessa sought to turn the public against the super hero community during Young Justice: Sins of Youth.
||Justice League America #105 (November 1995)
||A grouping of some of the greatest assassins on Earth. Membership includes Deadshot, Merlyn, Bolt, Deadline, and Chiller.
||Underworld Unleashed #1 (November 1995)
||A demon that largely acts in the role of the biblical Devil whose machinations such as during Underworld Unleashed have brought him into conflict with the League.
||Kingdom Come #1 (May 1996)
||Harbinger of a new breed of dark heroes that murdered, he was the target of the reformation of the Justice League formed when Superman returned from retirement.
||Justice League: Midsummer's Nightmare #2 (October 1996)
||An enigmatic alien that used Dr. Destiny to make the Justice League forget their past while activating the metagene of people on Earth at a rampant rate.
||JLA #1 (January 1997)
||A warlike people of Mars, a group of them survived that planet's destruction and arrived on Earth known as the Hyperclan to usurp the League's status and conquer Earth. Later, the race was revived by the Id and banished to the Phantom Zone where Fernus slayed them. Other White Martians emerged such as hybrids made by A'monn A'mokk with the DNA of metahumans from Earth, several from some Leaguers' enemies.
||JLA #7 (July 1997)
||Formerly the leader of the Bull Host Angels of Heaven, he ally himself with Neron and face the League several times.
||New Year's Evil: Gog #1 (February 1998)
||A man empowered by the Quintessence that traveled to parallel Earths and slayed the Superman therein, generally battling the League as well.
||New Year's Evil: Prometheus #1 (February 1998)
||When his sociopathic parents were gunned down at the end of a car chase before his eyes, the man who became Prometheus dedicated his life to crime not unlike Bruce Wayne to law in wake of a similar tragedy. With his Ghost Key to the Phantom Zone and a helmet storing the top 20 martial artists' skills, Prometheus would battle the League several times, including engineering the murder of Lian Harper. For a time, Chad Graham (trained as Prometheus' sidekick) took over his mentor's mantle when he was incapacitated and murdered by the original when he returned.
||JLA #18 (May 1998)
||A quantum physicist and probability mathematician that discovered how to manipulate luck and used it to become President of the United States, a Nobel Peace Prize recipient, and other such accolades that sowed chaos on Earth in response.
||JLA: World Without Grown-Ups #1 (July 1998)
||An ancient power that feeds on dreams and wishes that possessed Matthew Stuart and would alter Earth to suit its will.
||Tangent Comics: The Superman #1 (September 1998)
||Harvey Dent developed phenomenal powers on an alternate Earth and uses his abilities to conquer his world and rule it as a tyrant to protect it from disorder and crime. When he learned of the League's Earth, he sought to conquer it as well and crossed swords with its heroes.
||Martian Manhunter #0 (October 1998)
||The malevolent brother of Martian Manhunter, he was perverted by Darkseid into his herald and engineered the plague H’Ronmeer’s Curse that wiped out most of the Martians. When he arrived on Earth, he impersonated his sibling and attacked the League.
||DC One Million #1 (November 1998)
||An artificial sun destined to be the nemesis to the Superman Dynasty that was the mastermind behind DC One Million that teamed the Justice League with their future contemporaries in the Justice Legion A.
||Young Justice #4 (January 1999)
||William "Billy" Hayes is a teenage psychotic empowered by the demon Buzz that aspired to be the greatest killer on Earth. To this end, he targeted the Young Justice League.
||JLA: Primeval (1999)
||Jerome Cox is allergic to the modern world and worships ancient powers, seeking to bring these elder gods to Earth. As the League tried to stop him, they were de-evolved to early versions of their species.
||JLA #37 (January 2000)
||A weapon of the Old Gods, it uses spores to engineer weakness in a world it targets for destruction before using anti-sun technology to destroy the surrounding galaxy.
||Superman #153 (February 2000)
||Energy representing entropy, Imperiex controls an army of drones and seeks to destroy the universe and recreate in its image. It destroyed several worlds like Warworld and Almerac, its threat forced an alliance among several worlds including Earth and Apokolips.
||Young Justice #18 (March 2000)
||A group of teenagers the Agenda made from genetic material and cloned to destroy the Young Justice League. Membership includes Gray Lady, Serpenteen, Blockade, Short Cut, Blank Slate, and Groundswell.
||Green Lantern Annual #9 (September 2000)
||An Oan that came to Earth, married his sister Ereskigal, and led an army of abominations crafted by his mother Tiamat. Worshiped as a god in ancient Babylon, he was banished to Kurnugi by the Oan Istar and Terran Ninurta's army and remained until Istar's descendant Sala Nisaba unwittingly opened the door to the dimension with help from Kyle Rayner. She became trapped but managed to free Kyle who returned with the League to defeat Nergal and save Sala.
|Queen of Fables
||JLA #47 (November 2000)
||Powerful sorceress from another dimension trapped in the Book of Fables by Snow White. Freed in modern times, the Queen transforms Manhattan and targets Wonder Woman (whom bears a resemblance to Snow White) leading the League to battle the sorceress, trapping her again but in a book on the United States Tax Code.
|Baron Agua Sin Gaaz
||Young Justice #24 (October 2000)
||Grandfather of the Empress that murdered the heroine's parents which prompted an invasion by the Young Justice League into Zandia, haven for super-villains, to bring him to justice.
||JLA 80-Page Giant #3 (October 2000)
||Accidentally created by the Hundred, Centurion controlled a ghost army of soldiers throughout history and the Erasure Weapon which would erase something and its entire history. However, the former turned on him, he and his nemesis Moon Maiden were wiped from history. The pair would return working together and garnered intergalactic armies to their cause until Moon Maiden's memories of her fellow Leaguers shocked her into defeating Centurion again.
||JLA: Seven Caskets (2000)
||An ancient, evil ruler of great mystic power that betrayed seven monstrous kings and went into hibernation for millions of years. Her return was stopped when the Justice League merged with the spirits of the evil kings and Superman took her power, splitting it among his teammates. The act proved shocking to Jadeth, seeing evil power used in such an opposing manner, and returned to her sleep.
||Justice Leagues: JL? #1 (March 2001)
||An alien being that is commissioned to prepare planets for invasion by weakening its defenses. Using Hector Hammond, he attempted to make the people of Earth forget the existence of the Justice League. However, Hammond caught on to his scheme and left a suggestion of a 'Justice League of A...' in the minds of the group's charter members. This led to numerous Justice Leagues of different As (Aliens, Arkham, Amazons, Atlantis, Apostles, Anarchy, Adventure, and Air) which inconvenienced Advance Man until their memories returned and they toppled the alien.
||Action Comics #775 (March 2001)
||Originally an antihero that formed the Elite, Black's failure to pervert Superman and his ideals led him to suicide. However, perhaps as being a powerful psionic, his mind survived and retreated to his sister Vera Black's mind. He would begin to subvert Vera until during a mission of the Justice League Elite he took over her body and enslaved the powerful being Eve. Only the combined efforts of the two Justice Leagues were able to defeat him.
||JLA: Black Baptism #1 (May 2001)
||A host of demons that pattern themselves after the Mafia and seek to go up in rank among the demons of Hell. Led by the Enchantress (in the guise of succubus Anita Soulfeeda), they're manipulated by Hermes Trismegistus (in possession of Felix Faust's body) into stealing the magic energies of denizens on Earth in order to cleanse the world of humanity. Membership includes Nicky the Fork, Big Luci, Deuce, Scratch, and Samhein Diablo.
||JLA #53 (June 2001)
||A sentient energy created by the Cathexis able to turn wishes into reality, Id was unleashed on Earth granting wishes in ironic, malevolent ways including making a wish of Superman materialize as separating the League between their dual identities in physical manifestations.
||Haven: The Broken City #1 (February 2002)
||A geneticist on Competalia that developed a process to give people super powers and used it to become their ruler and developed a super army. Her enemies were placed in a prison called Haven who transformed the facility into a starship and escaped to Earth where they were given asylum. Anathema followed and began empowering humans to become a power source for a teleportation device to bring her legions to Earth but her plans were foiled by the League and Alliance of Haven and she was destroyed by one of her former associates.
||JLA #62 (March 2002)
||Title to the ruler and protector of Jarhanpur, Rama Khan can bend the elements of the land to his every whim. When an infant was chosen as the successor to the position and kidnapped, the League battled Rama Khan to reclaim the child.
||JLA #69 (September 2002)
||Born to Atlantis with blond hair, a taboo due to the Curse of Kordax, she was exiled and returned a powerful sorceress that came to rule her people. She had planned to conquer the world until Aquaman and the people of present-day Atlantis arrived in her time, sent to the past by Tempest during Our Worlds at War to save them from Imperiex. Imprisoning Aquaman, enslaving the future Atlanteans, she formed a League of Ancients to destroy the Justice League in a preemptive strike for when they tried to save their comrade. When the League comes to the past to face her, she does battle in the present with a reserve League established by Batman.
|League of Ancients
||JLA #70 (October 2002)
||Inspired by the Justice League, Gamemnae assembled Rama Khan, Manitou Raven, the Anointed One, the Whaler, Tezumak, and Sela under the false pretense of a peacekeeping force but really to destroy the League. Inevitably, all save Raven were absorbed by the sorceress in a quagmire spell.
||Justice League Adventures #12 (December 2002)
||A grouping of cold-themed villains including Mister Freeze, Captain Cold, Killer Frost, Minister Blizzard, Icicle, Snowman, Cryonic Man, and Polar Lord (General Eklu of the planet Tharr). A similar group appeared in Justice League of America #139 (February 1977), made up of Captain Cold, Icicle, and Minister Blizzard. Another group called the Ice Pack appeared in Super Friends #16 (August 2009) featuring Mr. Freeze, Captain Cold, Killer Frost, Minister Blizzard, Icicle, and Blue Snowman. In Young Justice, the elder Icicle enlists his son, Mr. Freeze, Captain Cold, and Killer Frost for a prison break.
||Young Justice #50 (December 2002)
||Believed to be over 800 years old, Lady Zand claims to have founded the nation of Zandia that can become the very soil of her country and manipulate the land to her whim.
||JLA #81 (July 2003)
||Created by the Clockwatchers, this group of fascists operated out of Safe Haven children's home. They were used by Manson in an attempt to reclaim Faith and discredit the League.
||JLA #85 (November 2003)
||A genetic backdoor in Martian DNA to their previous experience as the Burning, when Martian Manhunter overcame his fear of fire it set free the Fernus persona present in every one of his race's DNA. Nihilistic and seeking to reproduce asexually, Fernus sought to bathe the Earth in fire and death.
||JLA #94 (May 2004)
||Leader of a vampire coven called Tenth Circle that abducted children from around the globe and came into conflict with the Justice League and Doom Patrol.
||JLA Secret Files 2004 #1 (November 2004)
||Darrin Profitt absconded with Dr. Destiny's Materioptikon and created multiple realities and observed the outcomes to provide himself a direct path to all of his desires including a technologically advanced suit of armor and develop metahuman abilities. Seeking to defeat the League and conquer Earth, he maintained three realities of himself to give him good odds, with a fourth dubbed Fallback should all others fail.
||Justice League Elite #6 (February 2005)
||Leader of an intergalactic drug gang of the same name, Aftermath sought power in the Source Wall but was instead absorbed freeing Eve.
||Justice League Elite #8 (April 2005)
||A mysterious being of great power able to alter reality that was sealed in the Source Wall released when Aftermath entered and her mind controlled by Manchester Black (who had possessed his sister Vera). The pair went to Earth and created global havoc, laying waste to the JLA. Eve destroyed herself when Vera was able to regain control of her own mind.
||JLA #111 (April 2005)
||An ancient weapon of Qward built on the legend of the dark god Erdammeru, the Void Hound was so advanced no crew of Qwardians could pilot it. Instead, when a sentient mind emerged from Qward's vast communication web, they were able to capture it and use it to give their weapon an intellect able to control it but it proved too powerful for the Weaponers of Qward to tame and was sealed. In face of mounting threats, including almost being conquered by the Crime Syndicate and Krona carving destruction across the Anti-Matter Universe, a high-ranking Thunderer named Irik T. Roval awoke the weapon and managed to steer it to Earth, destroying entire solar systems in its wake. Earth's heroes led by the League were no match.
One of Roval's underlings learned from the heroes of who the Crime Syndicate was and the weapon was turned on the anti-matter Earth. They were equally unable to stop the weapon and asked the League for help which was granted. Inevitably, John Stewart was able to use his power ring and the Construct to contain the weapon's consciousness in his ring. The weapon's mind proved too much in time and began to take over Stewart and transform him into a cybernetic host. In its new form, it became a servant to Krona and laid waste to entire galaxies for him. However, it would later merge with the soul of Enigma's deceased daughter in S.P.H.E.R.E. to become a force for good on the Anti-Matter Earth.
||JLA Classified #8 (August 2005)
||Similar to the Crime Syndicate, the Power Posse was an evil version of the Super Buddies based out of a strip club. The group included a gigantic monstrous G'nort, Mary Marvel as a dominatrix named Mistress Mary and her submissive brother Billy, Ice as a sociopathic stripper named Tiffany, bartender Booster Gold, ticket taker Oberon, and bouncer Metamorpho led by the sleazy Max Lord and his moll Sue (née Dibny).
|The Hypothetical Army
||JLA Classified #16 (March 2006)
||Led by General Dvory Tuzik and created by Sybil the Hypothetical Woman, the group defeated the Chinese army and trounced the Justice League until the timely arrival of Superman and Martian Manhunter. Membership included Ghost Lion, Marieke, Soldat, Jin Si, Dybbuk, and Velocista.
||JLA Classified #37 (June 2007)
||The next evolutionary step in Amazo, Ivo created a new model of the android that combined his best-known creation with the DNA of his daughter Sara. Sending the creation to live with human parents as Frank Halloran, Amazo would reclaim his 'progeny' only for the boy to be conflicted with the sudden change in his life. Able to mimic both powers and minds, Kid Amazo was defeated when the League openly bickered and he exploded from the contention.
||JLA Classified #51 (March 2008)
||A self-styled god that travels between planets seeking out other 'gods' to battle, kill, and earn worship from his triumph.
||Justice League of America #24 (October 2008)
||The African Spider Trickster god residing in Vixen's Tantu Totem able to change reality by weaving stories at his own discretion. Beyond this, he can manipulate those that drawn power from the Red (aka Lifeweb, aka Morphogenetic Field).
||Titans: Villains for Hire Special #1 (July 2010)
||Mercenaries led and organized by Deathstroke the Terminator. After assassinating the Atom (Ryan Choi) on behalf of Dwarfstar, the group is targeted by Ray Palmer and the Justice League. Membership includes Cheshire, Tattooed Man, Osiris, Cinder, and Arsenal.
||Justice League of America #50 (December 2010)
||A leftover device of Alex Luthor is spewing dark energy damaging the multiverse, including the Anti-Matter Earth and Earth-9, and the Crime Syndicate hire Doctor Impossible to hijack a Resurrection Machine and return Alex to life to stop it. Instead, he tries to bring back Darkseid but the machine instead gives the dark energy substance, possessing the body of Hunter (an evil version of Orion) and creating the Omega Man. An insatiable thirst for energy, Omega Man has no choice but to feed on all before him.