| Villain | First appearance | Description |
|---|
| the Abyssal Dark | Aquaman vol. 8 #34 (May 2018) | A malefic force born of ancient Atlantis' overuse of magic. The Abyssal Dark is a demon of pure esoteric anima born from the conjurers of the surface-borne city's thirst for greater knowledge and power, promising them great power from its services, but withholding the terrible price that entailed. A great war would break out wherein the dark entity would be sealed within the annals of Atlantis' history, but it would find ways of rewriting the record of itself as the wellspring of Atlantean Arcanum in order to draw others into unleashing it, eventually finding the ideal liberator in Corum Rath, thousands of years later. |
| Admiral Strom | Aquaman #3 (November 1994) | High-ranking military officer, allied with Ocean Master and other Aquaman enemies. |
| Agent X-6 | Adventure Comics #273 (June 1960) | Operative of Smugglers Incorporated. |
| Amphitrite | Action Comics #518 (April 1981) | Female Atlantean criminal, allegedly Aquaman's mother. |
| the Aquabeast | Aquaman #34 (July 1967) | Wealthy playboy Peter Dudley fell in love with Aquaman's wife Mera and paid Doctor Hans Ludorf to transform him into an Aquaman duplicate; the procedure failed and Dudley instead became a beast-like humanoid. |
| the Awesome Threesome | Aquaman vol. 2 #36 (November 1967) | A trio of sentient robots named the Torpedo Man (a.k.a. the Torp), Magneto and the Claw. |
| Big Jim Mason | Adventure Comics vol. 1 #263 (August 1959) | A politician, Mason was the popular governor of an island nation named Comstock. However, he embezzled public funds and was actively trying to sabotage the electoral campaign of his rival, Vic Wake. |
| Black Jack | More Fun Comics #74 (December 1941) | Also "Blackjack," modern-day pirate adversary of the Golden Age Aquaman in More Fun Comics and Adventure Comics; appeared in a total of 15 stories from 1941 to 1950. |
| Aquaman vol. 8 #2 (July 2016) | A later supervillainess who is an agent of Black Manta following his usurpation of leadership over the mysterious organization code-named N.E.M.O after they broke him out. |
| Black Manta | Aquaman vol. 2 #35 (September 1967) | A would-be conqueror of Atlantis from the surface world, the murderer of Aquaman's infant son, Arthur Curry Jr. and Aquaman's deadliest and greatest enemy. |
| Aquaman vol. 7 #7 (May 2012) | Once a simple scuba diver paid by Dr. Shen in order to secure proof of Atlantis' existence. Due to a mishap wherein Arthur killed his father, David Hyde would later become a wrathful terrorist hellbent on destroying Aquaman and shattering the Atlantean legacy, regardless of whether the world died screaming in his vengeful wake. |
| Broadside | Aquaman vol. 8 #16 (November 2016) | An operative of the Nautical Enforcement of Macrocosmic Order organizations wetworks division. Broadside is one of N.E.M.O's best agents when it comes to killing Atlanteans, armed with a pair of linear launch devices which discharge volatile uranium explosive bolts and micromines. He usually wears a cloaking field device to disguise himself in public and boasts a slight racism towards Atlanteans. |
| Bres | Aquaman vol. 5 #1 (August 1994) | Bres was a citizen of the Atlantean lost city of Thierna Na Oge and a respected member of the Tuatha de Danaan. She served on the ruling city council known as the Conclave of Twelve under the leadership of her sister, Queen Nuada Silverhand. However, Bres was ambitious and coveted the throne for herself. She convinced the other eleven Conclave members that Nuada had fallen out of favor with their goddess, Dana, and needed to abdicate her seat. |
| Captain Demo | Adventure Comics #441 (September 1975) | Pirate who surrounded Atlantis with bombs in attempt to extort the citizens to crown him king; his name is an obvious pun on Captain Nemo. |
| Captain Rader | World's Finest Comics #127 (August 1962) | Undersea pirate, used a submarine disguised as a giant fish. |
| Captain Skover | More Fun Comics #76 (February 1942) | Trawler captain, committed crimes at sea, used robot-like armor. |
| Corum Rath | Rebirth #1 (August 2016) | Leader of the Deluge, an Atlantean terrorist and avid surface world hater, until he usurped King Arthur's crown and successfully ruled Atlantis for a while. Inevitably fell from good graces when his abuse of power and forbidden magics literally turned him into a power-hungry monster out to destroy Atlantis and conquer the surface world. An Atlantean puritan, Rath's regime often involved using magic in the persecution and expunging of Atlantis' marine life-resembling citizens called the Seachanged, individuals often labeled as undesirables who bear the racist moniker of taintblood because of either having adapting these traits while adjusting to undersea habitation, or being touched by powerful magic; such as that used by the Crown of Thorns. |
| Charybdis | Aquaman vol. 5 #1 | The supervillain responsible for the loss of Aquaman's left hand. He is a dangerous creature that was the result of his plan backfiring when he was catapulted into a school of piranha. He was later known as the Piranha Man. |
| Count Vitto | Adventure Comics #123 (December 1947) | Evil Venetian nobleman. |
| the Criminal Creature, a.k.a. the Creature King | Showcase #32 (May 1961) | Jed Coombs was mutated into a gigantic monster by Wilo the Wizard's potion; looted ships. |
| Aquaman vol. 7 #33 (July 2014) | Coombs is a Triton Base employee that, after an accident and an unusual experiment, became the Chimera. |
| Cutlass Charlie | Justice League of America #61 (March 1968) | Sword-wielding criminal, recruited by Doctor Destiny along with Captain Boomerang, the Tattooed Man, and others to battle the Justice League of America. |
| the Dead King/Atlan | Aquaman vol. 7 #16 (March 2013) | The former king and very first ruler of ancient Atlantis. Atlan was once a kind king and loving father who sought to unify the world under the seven kingdoms he had raised through Atlantis, his island city. But his traitorous brother Orin the First and his wife led a coup that nearly killed him, usurped his throne and murdered his beloved wife and children, stealing away everything he had built. In his grief and despair he crafted seven powerful artifacts with which he infiltrated his former kingdom and slaughtered his duplicitous kin, plunging the nation into civil war all before using his most powerful relic to sink the nation beneath the waves. In modern times, now christened the Dead King, he awakened to the resonance of his treacherous brother's descendant's telepathic broadcast across the oceans; seeking to reclaim his throne and lordship of the world once again. |
| Dead Water | Aquaman vol. 7 #49 (April 2016) | A feral, dangerous parasitic water elemental who can symbiotically host any individual who makes contact with its alien liquid substance. Dead Water boasts the ability to transform its hosts into clawed, fanged monstrosities which are able to become and traverse the catalyst of water needed for the change. |
| Dagon | Justice League of America #35 (May 1965) | Possesses water-controlling powers, wears a demonic costume. |
| Deep Six | New Gods #2 (April–May 1971) | All six fish-like members of this group possess superhuman strength as well as the ability to breathe and function underwater, created by Darkseid. The team returns to face Aquaman and his allies Koryak and Dolphin. The new members are actually "spawns" of the original, raised in birthing chambers. |
| Demon Gate | Aquaman vol. 5 #26 (November 1996) | Kimon Tanaka was a sea captain who hunted dolphins for a living. He captured several dolphins for the Shinobi research center, one of whom was Porm (Aquaman’s dolphin mother). When Kimon’s boat was destroyed, he was left by Aquaman to be eaten by sharks. However, Kimon was rescued by his brother Tanaka, head of Raiden Industries. Tanaka rebuilt his brother’s body, turning him into a cyborg. |
| Devilfish | Justice Leagues: Justice League of Atlantis #1 (March 2001) | Renegade member of Aquaman's short-lived "Justice League of Atlantis". |
| Doctor Deering | Aquaman vol. 2 #15 (May/June 1964) | A scientist working on a method allowing normal humans to breathe underwater, the method worked on himself-the downside being unable to live on the surface. He snapped and turned to crime. |
| Doctor Starbuck | Aquaman vol. #28 (July 1966) | Evil scientist, briefly took over Atlantis and fomented a war with the surface world, assisted by the water-breathing eagle Krakka. |
| Doctor Varn | Adventure Comics #251 (August 1958) | Time-traveling criminal scientist from AD 6958. |
| Duke Flarer | More Fun Comics #99 (September 1944) | Criminal genius operating out of a volcano hideout. |
| Duko | Adventure Comics #194 (November 1953) | Acquired a fleet of surplus war vessels and recruited hundreds of criminals to form a "pirate navy." |
| the Eel | Aquaman vol. 6 #21 (October 2004) | A criminal with mild telekinetic powers, Mort Coolidge had a career in both Gotham City and San Diego before the earthquake that sank half of that city. Here he found his powers far more effective, figuring out that he had greater control over water. |
| Mera: Queen of Atlantis vol. 1 #1 (April 2018) | Coolidge was a gothamite criminal working out on a contract perpetrated by the xenophobic tyrant; Corum Rath, the latter wanting political deniability in her death, opted to hire out a surface criminal to assassinate Mera; whom had been secretly cordoned as the new Queen of Atlantis during a period of the nation's civil strife. |
| the Electric Man | Adventure Comics #254 (November 1958) | Roy Pinto was an escaped prison convict who decided to keep a low profile. His specialty was electric eels. Constantly handling them mutated him, granting him immumity to electric shocks. Later escaped from prison with five other villains in JLA #5 to battle the JLA, but was captured by Green Arrow. |
| Professor Enos Snark | Adventure Comics #284 (May 1961) | Scientist that provided advanced technology to pirates in exchange for a percentage of the loot. |
| the Fire Trolls | Aquaman vol. 2 #1 (February 1962) | Gigantic enemies of the water sprites (Quisp's people) and the world at large who have fire-based abilities. |
| Aquaman vol. 7 #38 (March 2015) | Mystical volcanic guardians of the trans-dimensional Maelstrom Gates utilized by ancient Atlantis and its rulers. |
| the Fisherman | Aquaman vol. 2 #21 (May 1965) | Supervillain who uses fishing gimmicks to commit crimes and a member of the Terrible Trio. |
| the Gamesman | Aquaman vol. 5 #35 (August 1997) | Hunter who goes after superheroes like Animal Man. Aquaman helps to defeat him. |
| Gustave the Great | Adventure Comics #261 (June 1959) | a.k.a. the Animal-Master; an expert animal trainer, Gustave would perform daring crimes on the side. Since Aquaman stopped him while in action, Gustave swore revenge. |
| Hadley | Adventure Comics #257 (February 1959) | Criminal surgically altered to duplicate Aquaman's powers. |
| Hagen | Aquaman #2 (March 2003) | Treasonous Atlantean sorcerer who courted favor in the mystic council of the equally treacherous sorceress; Gamemnea. He and his cabal employed the same dark craft garnered in her service to assume high positions within the council of Atlantis by making a puppet of the Queen Mera, deposing King Arthur and anyone else who opposed their rule. Eventually attempting a genocidal takeover of the surface world. He later died when Atlantis was destroyed by the Spectre in Day of Vengeance during the Infinite Crisis event. |
| Harry Black | Detective Comics #294 (August 1961) | Commanded sea monsters to attack the shipping lanes. |
| the Human Flying Fish | Adventure Comics #272 (May 1960) | Vic Bragg was a swimming champion before turning to crime, where he fell in with Doctor Krill, the brilliant medical doctor and marine biologist who had also turned to a life of crime. After several months of recovery and training, Bragg began his career as the Human Flying Fish. One of the few Aquaman villains to appear in the Super Friends comic book. |
| Iceberg Head | DC Special Series #6 (November 1977) | Ice creature, caused a worldwide cold wave so that the world would be frozen like himself, convinced by Aquaman, Aqualad and Mera to desist, "melted" and became a water creature. |
| Jason Deeter | Adventure Comics #245 (February 1958) | Sorcerer with seaweed hair, used "voodoo power" to control Aquaman and Topo via voodoo dolls. |
| John Cook | Showcase #31 (March 1961) | Stole Professor Richards' ray machine and used it to "evolve" sealife into futuristic sea monsters under his command. |
| Ka'arl | Aquaman vol. 2 #39 (May 1968) | Evil Venusian. |
| Kadaver | Aquaman vol. 8 #26 (September 2017) | An Atlantean magician who trained at the Silent School in Atlantis until he left and became an enforcer. |
| Karla | Aquaman vol. 2 #24 (November/December 1965) | Karla is an enemy of Aquaman whose hair has been turned to living flame. She controls her "hair" psionically for a variety of combat uses. Her fire is not affected by the undersea environment and her body is invulnerable to fire. She was the leader of the Terrible Trio. |
| King Neptune | Adventure Comics #205 (October 1954) | Would-be ruler of the seven seas, presumably unrelated to the actual deity Neptune/Poseidon. |
| King Shark | Superboy vol. 3 #0 (October 1994) | Born in Hawaii, Nanaue is a humanoid shark, his father is "The King of all Sharks" - also known as the Shark God. Other characters, such as Special Agent Sam Makoa, have dismissed this as superstition and referred to Nanaue as a "savage mutation" with no mystical nature. |
| Kirk | Aquaman vol. 2 #12 (November 1963) | Assistant to Doctor Cyrus Beard; used the latter's technology — which transformed air-breathers into water-breathers — for crime. |
| Kordax | Atlantis Chronicles #4 | A semi-immortal ancestor of Aquaman's who commands all sea life. Born to Queen Cora of Poseidonis but abandoned at birth due to his grotesque, green-scaled body, Kordax survived in the ocean thanks to his mental control over sea creatures. As an adult, he returned to Atlantis leading an army of sharks in a failed bid for the throne. His punishment included the loss of his left hand (replaced with a sword) and banishment. He was later killed by Aquaman. |
| Krutz | More Fun Comics #79 (May 1942) | Commanded a Nazi battleship disguised as an iceberg. |
| Lammia | Mera: Queen of Atlantis vol. 1 #4 (May 2018) | Dowager Matriarch of Xebel and grandmother of Mera. |
| Lemur | Aquaman vol. 2 #8 (March 1963) | Extraterrestrial from the planet Phrygia, attempted to steal Earth's water. |
| Leron | Aquaman vol. 2 #11 (September/October 1963) | Leron was a revolutionary who lived in the realm known as Dimension Aqua. He led a revolt against their world's reigning queen, Mera. Post-DC Rebirth, he is captain of the Xebel military under the rule of Nereus. |
| Lord Wexel | Aquaman #1 (June 1989) | High-ranking official among a jellyfish-like race which briefly conquered Atlantis. |
| Lukhan | Aquaman #20 (March 1965) | Exiled Atlantean bandit. |
| the Malignant Amoeba | Adventure Comics #135 (December 1948) | Giant artificial life-form created by scientists, eats everything in its path; the scientists spent ten years containing it until it escaped and encountered Aquaman. |
| the Marine Marauder I and II | Adventure Comics #449 (January–February 1977) | A supervillain with mental control over undersea life. |
| Adventures of the Outsiders #37 (September 1986) | A later supervillainess who fought the Outsiders and had the same name, costume and powers. She always desired fame and wealth, but disliked the hard work associated with business and investments, so she turned her powers towards crime. |
| the Maritorn | Aquaman #48 (September 1998) | An alien race; invaded Mera's home dimension. |
| Master Sargasso | More Fun Comics #78 (April 1942) | Stranded ships in the Sargasso Sea and robbed them. |
| Merder | Aquaman vol. 2 #5 (September 1962) | Evil sorcerer of ancient times, formerly imprisoned with his underlings within a drop of water. |
| Merdo the Wizard | World's Finest Comics #132 (March 1963) | Ancient wizard, possessed Aquaman's octopus ally Topo. |
| Mister Neptune | Adventure Comics #205 (October 1954) | Used faked supernatural abilities to challenge Aquaman for the rulership of the seven seas. |
| Mongo | Aquaman vol. 2 #30 (November 1966) | Ruled the underwater "ancient city of evil" Necrus, which periodically materialized on Earth. |
| Morrel | More Fun Comics #85 (November 1942) | Criminal hunter, used electric guns. |
| Naeco | Showcase #33 (July 1961) | Dictator of the planet Venus, overthrown by Aquaman, Aqualad and rebel leader Mermor. |
| Narkran | Aquaman vol. 2 #41 (September 1968) | Atlantean courtier, secretly had Mera abducted so Aquaman would appoint him temporary ruler while searching for her, became a tyrant until ousted by a reunited Aquaman and Mera. |
| Nereus | Aquaman vol. 7 #19 (June 2013) | The ruler of Xebel (the Second Kingdom of the Seven Seas) and one of its greatest warriors. He refers to Mera as his "wife", and will stop at nothing until she is. |
| N.E.M.O | Aquaman vol. 8 #2 (July 2016) | A nebulous organization of powerful oceanic interest-based shareholders who sought to assume dominance over the world via controlling the ocean and its resources. N.E.M.O. (Nautical Enforcement of the Macrocosmic Order) was founded in the late 1800's and consolidated their stranglehold on sea line interests in the late 1900's; by controlling its greatest economy, N.E.M.O basically runs the world. Opting now to make themselves known, said cabal of interests recruited Black Manta in the hope they could use him in order to consolidate their power by sparking a world war between Atlantis and America by implicating Aquaman with staged acts of war. |
| Niccol | Aquaman vol. 2 #13 (January 1963) | Time-traveling supervillain from AD 2098, used a thought-control ray. |
| Nikkor | Aquaman vol. 2 #19 (January 1965) | Agitator from Mera's home dimension, briefly mind-controlled her to conquer Atlantis. |
| the Ocean Master | Aquaman vol. 2 #29 (September 1966) | Another long-time foe of Aquaman. The Ocean Master was revealed in the 1960s to be Aquaman's fully human half-brother, Orm Marius, who had grown up in the shadow of his heroic half-brother and was jealous of his powers. |
| Aquaman vol. 7 #0 (November 2012) | Born the second child to Queen Atlanna of the royal bloodline. Unlike the previous continuity, Orm Marius and Arthur Curry were on more familial terms, even leaving his younger sibling the throne when Arthur felt unbecoming of it. But Orm harbored deep resentments towards humanity and the surface world for its countless years of mistreating the sea. When Vulko instigated a naval accident that killed many Atlanteans, the Ocean Master roused his armies and declared war on the entire world. |
| Oceanus | Aquaman vol. 2 #18 (November 1964) | Would-be conqueror from Mera's home dimension. |
| the Octopus Man | Adventure Comics #259 (April 1959) | Roland Peters, conducted illegal experiments on marine life to transfer minds between species, transferred Aquaman's mind into different fish. |
| O.G.R.E. agents | Aquaman #26 (July 1976) | Huntress, Krako, Black Manta and Typhoon were agents of O.G.R.E.. |
| the Phantom Sea Raider | Detective Comics #293 (July 1961) | Captain Scobey, modern-day pirate. |
| Piscator | Suicide Squad #59 | A renegade Atlantean and self-styled Janissary whom Aquaman fought while protecting President Marlo of Qurac. Member of Onslaught. |
| Pomoxis | Aquaman vol. 2 #3 (May 1962) | Atlantean who impersonated Aquaman, attempted to conquer Atlantis with assistance from the surface world criminal Captain Clay. |
| Professor Jack Leach | Adventure Comics #124 (January 1948) | Assistant to Professor Ness, used a special growth hormone to create sea serpents. |
| Professor Polloy | World's Finest Comics #131 (February 1963) | Criminal scientist, created a ray that controlled and "hardened" water (similar to Mera's later powers). |
| Queequeg | Aquaman #2 (January 1992) | Insane whaler with an Ahab-like obsession over Aquaman. |
| Quirk | Aquaman vol. 2 #6 (November 1962) | Criminal water sprite from the same world as Aquaman's ally Quisp; served by Quilp and other underlings. |
| Qwsp | JLA #30 | A being from the Fifth Dimension who enjoys warping reality for his own amusement; impersonated Aquaman's ally Quisp. |
| Ragnar | Aquaman vol. 2 #38 (March 1968) | Atlantean nobleman, framed Aquaman for the murders of Atlantean soldiers. |
| Rhombus | Aquaman vol. 5 #38 (November 1997) | Supervillain who thinks he is Deep Blue's father. |
| the Scavenger | Aquaman vol. 2 #37 (January 1968) | A deep-sea diver and pirate who wears a specifically-designed diving suit to scavenge valuable treasure off the ocean floor and sell it to the highest bidder. |
| Aquaman vol. 7 #18 (May 2013) | A scavenger who was an old enemy of Aquaman before his days in the Justice League. After Atlantis' revealing itself to the world, Peter Mortimer would resurface on the underworld stage, having acquired numerous Soviet-era subs for the purpose of collecting and selling Atlantean weaponry scrounged up from the prior conflict and selling them to the highest bidder, with intent to one day claim Atlantis as his own. |
| the Sea Demon | Detective Comics #296 (October 1961) | The Sea Demon is an ordinary human. He used a demon costume and an electrically charged trident to exact tribute from superstitious islanders. |
| Seaquake | Aquaman #62 (July 1978) | An android used by the Ocean Master to try to destroy Atlantis with a sonic disruptor. |
| the Sea Thief | Justice League of America #14 (September 1962) | Seafaring criminal, recruited by Amos Fortune along with the Angle Man, Hector Hammond and others to battle the Justice League of America. |
| the Sea-Men | Adventure Comics #216 (September 1955) | Extraterrestrial invaders. |
| the Shark | Green Lantern vol. 2 #24 (October 1963) | Originally one of Green Lantern's enemies; Aquaman fought this mutated tiger shark on various occasions. |
| "Shark" Wilson | Adventure Comics #203 (August 1954) | Criminal who was magically transformed into a shark. |
| the Siren | Aquaman vol. 2 #22 (August 1965) | Hila, twin sister of Mera, exiled from their home dimension, later led a mission to kill Aquaman, allied with Black Manta. |
| Slud-Jak | Unexpected #178 (March 1977) | Tentacled semi-humanoid whose telepathic commands to undersea creatures could override Aquaman's; angered by the surface world's pollution of the ocean, it sent undersea creatures to attack swimmers at a beach, but was eventually placated. |
| Stavros Markos | Adventure Comics #464 (July 1979) | Greek shipping magnate, sought to loot Atlantis. |
| Stellor | Aquaman vol. 2 #16 (July 1964) | Extraterrestrial criminal, led a gang of shape-changing aliens. |
| Sunburst | DC Special Series #1 (September 1977) | Iranian empowered by the mystic Sun Stone, seeks to restore the Persian Empire. |
| the Suvians | Aquaman vol. 2 #4 (July 1962) | Hostile extraterrestrials, used a stone robot in attempt to destroy an Earth town. |
| Taggert | Aquaman vol. 2 #19 (January 1965) | Unethical showman who enslaved Atlanteans. |
| Tamerkhan | Aquaman vol. 2 #25 (January 1966) | 13th century alchemist, worked for Genghis Khan, developed a formula to keep himself and others alive over centuries, clashed with Aquaman upon his revival. |
| Thanatos | Aquaman vol. 2 #54 | Thanatos is a dark, evil twin of Aquaman. He inhabits an “other-dimensional realm” known as “Netherspace” that is a kind of reverse Purgatory, where beings known as the “Others” keep entities until they are filled with sufficient evil to be returned to our dimension. Killed by Major Disaster, who mistook Thanatos for Aquaman. |
| Thesily | Aquaman #6 (May 1992) | Was bequeathed the Atlantean throne in Aquaman's place, but proved a poor ruler who grew jealous of the following Orin still held with his former subjects. Subsequently attempted to have him and his illegitimate son, Koryak, assassinated only to be killed in an accident, crushed to death when quakes caused by the meteor which sank Atlantis made part of his palace fall on top of him. |
| the Thirst | Aquaman vol. 4 #5 | The Thirst is a golem composed of dry river mud, the mystical ‘brother’ of a being called the Waterbearer, an ancient goddess. The Thirst has preyed on the deities who have watched over the Secret Sea, a metaphysical realm composed of the shared imagination of humanity, for millennia, absorbing their power. When Aquaman became guardian of the Secret Sea, the Thirst set his sights on Aquaman. |
| the Thule | Aquaman vol. 7 #43 (October 2015) | A clandestine order of dark mystics who ruled old Atlantis through profiteering off of its constant state of war and strife. When King Atlan ceased all infighting and brought both the Seven Kingdoms and the world under his banner their power had been greatly undermined; threatened by this, they used the turmoil of the deposed king's sinking of Atlantis in order to create a separate kingdom a world away where they could rule unopposed. Millennia later the spells separating the Thule from Earth began to weaken, after which they enacted their eons-old plan of invading the other world to claim it as their own. |
| Tiamat | Aquaman #15 (December 1995) | Giant extraterrestrial reptilian, rampaged in Washington DC. |
| Tiros | Aquaman vol. 2 #12 (November 1963) | Tyrant of the planet Sidius, abducted Aquaman and Aqualad for gladiatorial games. |
| T.N.T. Dillon | Adventure Comics #226 (July 1956) | Explosives-using criminal. |
| Tom Lariar | Adventure Comics #170 (November 1951) | Used a telepathic machine to command fish to commit crimes. |
| Toxin | Aquaman #32 (May 1997) | Toxic waste-using terrorist, fought by Aquaman and the Swamp Thing. |
| the Trench | Aquaman vol. 7 #1 (June 2012) | Formerly Atlanteans, now an extinctive race of vicious, cannibalistic, ocean-dwelling creatures that rose from their domain beneath the ocean floor (revealed to be the Third Kingdom of the Seven Seas) in search of food and devoured anything that stood in their way. |
| Trino | Showcase #30 (January 1961) | Leader of an invasion force of extradimensional amphibious aliens. |
| the Un-Thing | Aquaman vol. 2 #24 (November/December 1965) | A sexist man who is invisible while underwater and a member of the Terrible Trio. |
| Urcell | Aquaman vol. 8 #23 (July 2017) | Former 2nd in command of the xenophobic Deluge terror cell turned Drift Commander of Atlantis during the Rath regime, quick to turn on the new king when his abuse of magic corrupted him ending in beating a retreat into obscurity after Atlantis had risen from the depths. Now a defector she was later killed during an attempted coup against Queen Mera after having contacted the Suicide Squad for aid in returning her home to the ocean, wherein Lord Satanis felt she outlived her usefulness towards the mission and slew her using one of the Silent Schools mystic weapons. |
| V'lana | Action Comics #539 (January 1983) | Current Queen of Xebel, a kingdom located in Dimension Aqua, and enemy of Queen Mera. |
| Wackyman | Adventure Comics #233 (February 1957) | Wackyman was a clown who chose Aquaman as his motif for comedy. He designed a costume similar to that of Aquaman and robots in the form of aquatic creatures to use in his act. |
| Warhead | Aquaman vol. 8 #16 (February 2017) | Chinese citizen turned cybernetic military operator, remodeled by The Ministry of Self-Reliance. Seeking to control Aquaman through his unique blend of telepathy and technopathy to elude his creators and contractors, instead offered sanctuary by Aquaman to aid his recovery. |
| Weisbogg | Adventure Comics #436 (November 1974) | Used a robot duplicate of Aquaman in a plot against him. |
| Wylie | Aquaman #9 (August 1992) | Unscrupulous Merrevale oil executive, ordered Aquaman assassinated. |
| Xen | Aquaman vol. 2 #27 (May 1966) | Extraterrestrial who abducted sentient beings, including Aquaman and Mera, for his intergalactic aquarium. |
| Yascom | More Fun Comics #82 (August 1942) | One of many wartime prisoners on Convict Island, declared himself king when the prisoners took over the island. |
A number of villains from the comic books have made an appearance, or appearances, in Aquaman related live-action media.
1. ^{{Cite web|url=https://variety.com/2017/film/news/aquaman-villain-black-manta-get-down-yahya-abdul-mateen-ii-1201974589/|title=‘Aquaman’: ‘The Get Down’ Actor Cast as Villain Black Manta|last=Kroll|first=Justin|date=|website=Variety|archive-url=|archive-date=|dead-url=|access-date=}}
2. ^{{Cite web|url=https://variety.com/2016/film/news/patrick-wilson-cast-in-aquaman-orm-ocean-master-jason-momoa-1201940189/|title=Patrick Wilson Cast as ‘Aquaman’ Villain Opposite Jason Momoa|last=Kroll|first=Justin|date=|website=Variety|archive-url=|archive-date=|dead-url=|access-date=}}
3. ^{{Cite web|url=https://variety.com/2017/film/news/dolph-lundgren-aquaman-movie-king-nereus-1202029612/|title=Dolph Lundgren Joins Warner Bros.’ ‘Aquaman’|last=Kroll|first=Justin|date=|website=Variety|archive-url=|archive-date=|dead-url=|access-date=}}