A mastermind gorilla from Gorilla City, a place where many hyper-intelligent gorillas live. After being ousted for his experiments in mind control, he turns to full-time villainy in order to gain wealth and resources to continue his research. He is most notable for organizing a number of villainous alliances to counter the Justice League.
- Adaptational Nice Guy: While firmly on the villain side, he's much less evil than his comic book counterpart and most versions. He treats his subjects with decency, making the Legion of Doom into a big happy family, and while he still has Fantastic Racism towards humans, he largely outgrows it. His ultimate plan changes from Kill All Humans to turn everyone in the world to apes, which is more goofy than straight-up genocidal.
- Affably Evil: After some Character Development, he evolves into this.
- Arch-Enemy: To Gorilla City in general, and Solovar in particular. He could also be considered one for the Justice League as a whole, being their most recurring enemy post-League founding and the only one besides Luthor who is out, specifically, to destroy the League as an Evil Plan in and of itself and not just because they are interfering with his schemes, and unlike Luthor he isn't obsessed with individual Leaguers like Superman note
- Benevolent Boss: Downplayed. The Legion of Doom likes him more than Luthor because he treats them with more respect, but he still clearly sees all of them as disposable pawns and is perfectly willing to fry their brains if they are captured no matter how loyal they are. It's less that's he's a "good boss" and more that he's less bad than Luthor.
- Big Bad: Of the Secret Society and the Legion of Doom. Competes with Luthor and Darkseid for this title when it comes to the show as a whole.
- Big Bad Wannabe: Well, he clearly doesn't end at the top.
- Bond Villain Stupidity: And called out on it (by Parasite of all people) when his Society lures the League into an ambush and then Grodd pulls them back despite them outright winning, purely because Grodd wants their final defeat to be a public spectacle. Parasite in particular was on the verge of killing Superman when he did this.
- This happens again when they outright defeat the League and he still spares them in order to execute them in a public stadium, which is even more egregious since since it's J'onn J'onzz (disguised as Clayface) calling him out this time and even comparing him to a dumb movie villain explicitly, meaning J'onn must consider Grodd to be an outright living cliche.
- Character Development: Grodd started off with a strong Fantastic Racism towards humans but later grows out of it.
- Comic-Book Movies Don't Use Codenames: In this version, he sticks to his given name (just "Grodd") rather than calling himself "Gorilla Grodd".
- This is subverted twice, and not even by Grodd himself. In the episode "Comfort and Joy", the Flash tells an orphanage staff member that he once "made Gorilla Grodd cry 'Uncle'." In the episode "The Great Brain Robbery", Doctor Fate casts a spell and commands it to show him "the mind of Gorilla Grodd".
- Deadpan Snarker: He always has a snide comment ready about somebody's inferior intellect. Flash in particular is a popular target of his.
- Defiant to the End: He spends his last moments while being Thrown Out the Airlock swearing that he's not done with Luthor, and will get revenge somehow.
- Diabolical Mastermind: Especially in Justice League Unlimited. The other members of the Legion of Doom pay him twenty-five percent of their profits; in exchange, he provides the muscle to keep the League off their backs.
- Disappointed by the Motive: Spends half the final season being ominously vague about his ultimate plan, only for it to turn out that he just wants to turn everybody into gorillas. The Legion is less than impressed when they find out, to say the least.
- Does Not Like Spam: He hates bananas.
- The Empath: Evil version. He can influence people to say things they'd otherwise keep to themselves by playing on their emotions.
- Everything's Better with Monkeys: Subverted to hell and gone.
- Eviler Than Thou: With Luthor.
- Evil Genius: He plans a lot of his schemes out very carefully, and is a skilled telepath.
- Evil Is One Big, Happy Family: What he turns the Legion of Doom into.
- Evil Plan: Parodied. Turning every human (and Kryptonian, etc) on Earth into a gorilla is just... goofy. Luthor calls him on it.
- Fantastic Racism: He thinks very little of humans. However, he outgrows it, in more ways than one.
- Genius Bruiser: He's a 600 pound gorilla with an intellect that rivals that of Lex Luthor.
- Has a Type: After some Character Development, he shows an interest in female humans.
- Hoist by His Own Petard: Luthor uses his own Mind Rape powers on him.
- Interspecies Romance: Every single one of his lovers has been human. He's so into them that he turned Giganta from an ape to a human just to suit his particular fetish.
- Kavorka Man: Or ape, first there was the hot scientist in his debut episodes, then Giganta and lastly Tala. Must be the smarts.
- Killed Off for Real: By being Thrown Out the Airlock.
- Manipulative Bastard: With a dose of Psychic Powers and Sinister Surveillance, he manipulates the entire League into fighting each other and disbanding themselves. He also has a penchant for manipulating women in particular into blindly following him, with his first human accomplice even admitting that he never used his Mind Control technology on her at all- she only supported him because she honestly thought he was the most brilliant mind on the planet.
- More Than Mind Control: In "Secret Society", he has subtly been using his newly acquired psychic powers to pull the Justice League apart by keeping them off their A game and even gets the League to outright disband, however he admits to Shade that he isn't powerful enough to do this on his own and instead had to manipulate insecurities that were already there, sabotage their sleeping patterns, make them more irritable and encourage them to get on each others nerves more than usual.
- Mind Rape: His specialty.
- Nice Job Breaking It, Hero!: He notes that he really should be thanking the Flash since he inadvertently gave Grodd Psychic Powers the first time he defeated him.
- Only One Name: He is addressed by just "Grodd". No surname.
- Psychic Powers: He develops them after Flash fries his mind-control device while Grodd was using it.
- Sinister Surveillance: Spied on the League for a time to get a better idea of their strengths and weaknesses and to monitor the progress of his plan to undermine them psychologically. By the time he's running the Legion he seems to be spying on his own members too as he fries their brains whenever they get caught before they can say anything.
- Smug Snake: Thinks so little of humans that he forgets they can fight back.
- Social Darwinist: Believes the strong should rule and the weak obey. He repeatedly scoffs at "society's petty restrictions" for daring to keep the criminal element down.
- Heck, Luthor calls him an Objectivist as an insult in their final confrontation.
- Took a Level in Badass: Several times in fact. He started out as a regular super-intelligent gorilla with mind control technology, but following his first appearance a malfunction with his device causes him to develop actual Psychic Powers. Beyond that though, he also started out as a solo villain with gullible / brainwashed lackeys, graduated to assembling a Villain Team-Up, and then in the final season has founded the Legion of Doom. His plan to turn the entire world into apes, while undeniably silly, also counts somewhat as it was the first time he managed to operate on a truly global scale.
- Too Clever by Half: He is one the most scarily effective villains in the show and manages to outright defeat the League more than once, as well as turn dozens of supervillains into his willing pawns. Yet he always screws it up in the end because he just needs people to know how smart he is, resulting in him passing up opportunities for easy wins in favour of ever grander and more ludicrous schemes.
- True Companions: What he tries to turn the Secret Society and then the Legion of Doom into.
A disgraced former member of the Green Lantern Corps, he was a personal nemesis to John Stewart.
- Adaptational Jerkass: This version of Sinestro is much, much more evil and, to be blunt, shortsighted than the comics version. Although to be fair the DCAU is from before Sinestro had much character beyond "Green Lantern's evil counterpart".
- Adaptational Wimp: Even compared to his somewhat Flat Character comic book counterpart at the time, this Sinestro is one-dimensional to the point that by the time of Justice League and Unlimited, he is reduced to working for Grodd and Luthor to even begin to pose a real threat to the Green Lantern anymore. He is also far less ambitious, as his goal has shifted form Galactic Conqueror to "kill as many Green Lanterns as I can", and he isn't very good at that either.
- Amazing Technicolor Population: His skin is red.
- Archenemy: Despising the GLC for his expulsion, he's this to the GLC in general and Static Shock swapped his personal enmity to John Stewart.
- The Collector: Sinestro collects the rings of the Green Lanterns that he hunts and kills.
- Evil Counterpart: To Green Lantern.
- Frame-Up: In a crossover episode from Static Shock, he impersonated John Stewart in order to destroy his reputation by framing him for crimes.
- Hero Killer: Unlike in the comics, Sinestro murdered Abin Sur in this continuity.
- Hunting the Most Dangerous Game: Sinestro hunts Green Lanterns and collects their rings as trophies.
- Rogues-Gallery Transplant: The archenemy of Hal Jordan in the comics, here, he makes his debut fighting Kyle Rayner and Static Shock reveals that John Stewart took Hal's role in Sinestro's expulsion from the GLC.
Giganta was a super villain with the ability to increase or decrease her size at will. She befriended Grodd and became a member of his Secret Society.
- Aluminum Christmas Trees: Yes, the original Giganta was an ape who was turned human via an experiment, although it was not another gorilla who orchestrated it. (Origins of the character from other continuities made her a human scientist who gained her powers via experiments or accidents, the origin given here reverting to the character's roots.)
- Anti-Villain: While undoubtedly a villain, Giganta doesn't go out of her way to Kick the Dog and seems to be among the most human of the Society's members. She joins the society out of devotion to Grodd and no other reason.
- Attack of the 50-Foot Whatever: Her main superpower is growing to huge heights.
- Boobs of Steel: Within the original Secret Society alone, compare her chest size with that of cold-blooded distance striker, Killer Frost, who she shares a voice actress with.
- Evil Redhead: A redhead and an Anti-Villain.
- Magic Skirt: Strangely enough, considering she wears a tiny dress and can grow to giant size, we never see the obvious outcome, even when she falls over. Possibly subverted on-screen, judging by the Shade's reaction to seeing her grow right in front of him and then proceeding to look up while standing underneath her.
- Mistreatment-Induced Betrayal: Grodd tried to fry her brain so she turned on him in the second-to-last episode.
- Ms. Fanservice: She has a buxom figure, especially compared with Killer Frost in the Secret Society, and wears a tiny dress. She attracts a few men in the show.
- Most Common Superpower: When grown she has the biggest breasts in the entire DCAU note .
- My Master, Right or Wrong: While genuinely criminal, her main connection is her devotion to Grodd for, "As long as he needs me." Or until he fries her brain.
- Ship Tease: In the final episode, she plants a kiss on the Flash's cheek. Doesn't seem to mean anything if the tie-in comic continuation is any indication, where he starts dating Linda and didn't think much of Giganta's kiss besides being an unserious crush. She doesn't take it well.
- Woman Scorned: Subverted eventually with Grodd. While she's a bit pissed off that he's replaced her with someone else (as it turns out, Tala), she's more furious that he tried to fry her brain.
- Wouldn't Hit a Girl: Invokes this on Superman one time. Wonder Woman doesn't have a problem, though...
Killer Frost was a super-villainess who had the ability of Cryokinesis and was a member of Grodd's Legion of Doom.
- Adaptational Modesty: A slight example. This version of Killer Frost wears a unitard instead of a leotard.
- Ax-Crazy: The girl likes murdering.
- Black Eyes of Evil: Black eyes, and one of the most vile Society members.
- Chronic Backstabbing Disorder: Like many other Society members, she betrays Grodd for Luthor and then Luthor for Grodd as the balance of power and Luthors' sanity shifts; unlike the others though, she gets back in Luthors good graces by flat-out murdering the other members of the defeated Grodd faction.
- Creepy Monotone: Her voice seldom goes up or down.
- Dark Action Girl: Her powers are impeccably useful in combat.
- Deadpan Snarker: Always a sarcastic quip in her.
- For the Evulz: Grodd makes it clear that she's working for him simply because she just wants to kill as many people as possible. She seems very disappointed when Grodd wants someone alive.
- Goth: Lone Psycho Goth variant.
- Harmless Freezing: Averted. There's a reason she's called Killer Frost.
- An Ice Person: "Not necessarily a nice person," indeed.
- I Fight for the Strongest Side: When Luthor's faction comes out on top against Grodd's, she takes a few steps away and flash-freezes his minions. Luthor welcomes her into the fold.
- Karma Houdini: Applies to most of the surviving Legion of Doom members in the Grand Finale, but she stands out as she is one of the most vile members who happens to be the number one reason there needed to be "survivors" in the first place.
- Kick the Son of a Bitch: Her murder of the traitors among the Legion of Doom. She also kills Morgan Edge during her debut episode.
- Major Injury Underreaction: Grodd has the group engage in teamwork and trust-building exercises, which Frost surprisingly goes along with. Giganta "accidentally" crushing her during the "fall backwards and I'll catch you" one elicits no more than a bored-sounding, "Ow."
- Pet the Dog: She reassures Clayface that Morgan Edge, his captor, will never harm him again.
- Psycho for Hire: As Grodd puts it, "she just likes killing things," to the point where she looks really disappointed whenever she's stopped. On the bright side, it makes her really hard to bribe.
- Psychotic Smirk: This and disdain about sum up her facial expressions.
- The Sociopath: The other members of the original Society at least had reasons for their actions, such as money, loyalty to Grodd or a desire to be cured. Killer Frost just likes killing people.
- Underestimating Badassery: Does this to Toyman in "Alive". Considering that Toyman has frequently clashed with Superman, she should have known better.
- You Gotta Have Blue Hair: Her hair is blue to match her powers.
Atomic Skull is a supervillain who is a member of the Legion of Doom.
- Badass on Paper: Was the champion of the Meta-Brawl and touted as a tough fighter but all of his appearence involve him getting his butt kicked. Only time he is shown to win a fight is the series finale.
- Butt-Monkey: Despite being a fearsome-looking metahuman, most of his screen time is spent being humiliatingly trounced by non-powered heroes - and, in one case, by an anonymous teenage monk.
- Even Evil Has Standards: He insists that he and the other villains should be allowed to help the heroes stop Darkseid's invasion.
- Evil Sounds Deep: Averted. For a demonic-looking guy with a flaming skull for a head, Atomic Skull has a high pitched voice to the point he almost sounds like a teenager (which is probably the case, since he was a student in the source material).
- I Love Nuclear Power: His main superpower.
- Mauve Shirt: One of only a handful of Legion members to survive the finale.
- Pet the Dog: He honored his temporary truce with the League and carries a wounded Hawkgirl away from an imminent explosion.
- Skull for a Head: Has a skull wrapped in green fire, which he can fire energy blasts from. Nobody shows any visible discomfort from punching him in the face, however.
- Vocal Dissonance: Sounds surprisingly whiny when we actually hear him talk.
BizarroSee here for complete info.
Shade was a supervillain who controlled shadows. He joined a record number of four separate Anti-Justice League organizations.
- Adaptational Ugliness: He's much older note and uglier in the DCAU than he is in the comics.
- Adaptational Villainy: While he was a villain in the comics for a long time, by the time the Justice League animation was running he had become an Anti-Hero, a characterisation that has largely stuck.
- Adaptational Wimp: Shade doesn't seem to be near as powerful as his comic book counterpart, who was strong enough to defeat several Black Lanterns with relative ease.
- Amazon Chaser: He's not the least bit bothered by Giganta being a Statuesque Stunner, in fact he likes it. Even after learning she used to be a gorilla.
- Butt-Monkey: The League doesn't even try their hardest to beat him.
- Casting a Shadow: What his staff can do.
- Dark Is Evil: He wears black and manipulates the shadows.
- Deadpan Snarker: In his few brief appearances, he has his moments:Shade: Lex Luthor? The plot thins.
- Dropped a Bridge on Him: He was among one of the most high-profile casualties of the finale.
- Evil Albino: Though it might be just make-up.
- Killed Off for Real: With a whole bunch of other villains in the episode before the finale.
- Know When to Fold 'Em: Always the first to know when he's been beat.
- Kung-Fu Wizard: He eventually learns martial arts.
- Lean and Mean: Fairly lean and a certain villain.
- Nice Hat: A top hat
- Only in It for the Money: To the point of Running Gag.
- Pragmatic Villainy: Prefers to remain a thief over a ruler. Downplayed when it comes to joining Villain Team Ups- after two failed ones, he has come to the conclusion that they are just plain bad ideas that end up in him being arrested, but Grodd talks him into a third one despite Shades' misgivings...which also results in failure.
- Sinister Shades: Wears a pair of sunglasses to complete his outfit.
- Squishy Wizard: Until he Took a Level in Badass his staff was his only utility in combat.
- Took a Level in Badass: And made pretty well against Batman. Too bad Superman stepped in.
Star Sapphire (Carol Ferris)
Star Sapphire is a villain that is for hire and a member of the Injustice Gang and Legion of Doom.
- Adaptational Nationality: She's been changed from American to British.
- Adaptational Villainy: She went from an Anti-Hero to a full on villain.
- Alpha Bitch: While not explicitly stated to be a queen like in the comics, she sure is haughty enough. When she finds that she wasn't the only supervillain summoned by Luthor to join his Injustice Gang, she snidely asks if she's been reduced to being in the ranks of "common criminals" now.
- Ambiguous Situation: Word of God has confirmed that she's supposed to be Carol Ferris. Since Hal isn't a Green Lantern in this continuity, what led to her becoming a Star Sapphire is likely different to some extent. If anything, she genuinely believed in Aresia's cause to eradicate all men because of her past experience with some "very unpleasant men [she's] known over the years."
- Blood Knight: She enjoys beating her enemies. When Lex recruits her to his Injustice Gang and says that they're going to destroy the Justice League, she and Grundy are the only ones grinning while everyone else has a This Is Going to Suck/Mass "Oh, Crap!" reaction.
- Cute Bruiser: She looks fragile but with her gem's power, she's a brutal fighter.
- Dark Action Girl: She has put up some serious fights among most of the villainesses.
- Dark Is Evil: Probably the reason why her costume was recolored from bright pink (as it is in the comics) to very dark purple, almost black.
- Distaff Counterpart: To John Stewart, the main Green Lantern.
- Does Not Like Men: She's willing to work with them if she need it be, but she's fine with Aresia wanting to commit gendercide against men, stating that she's dealt with some "very unpleasant men [she's] known over the years."
- Evil Brit: British and certainly evil.
- Evil Is Petty: Not content with being the Injustice Gang's most unpleasant teammate (not a small feat), she gleefully joined an attempt at Gendercide just to get rid of some guys she disliked.
- Faux Affably Evil: Acts like a Proper Lady while killing enemies.
- Green Lantern Ring: Her head-jewel-thing.
- HeelFace Mole: Briefly feigned abandoning Aresia to join the heroines.
- In the Back: How she's defeated in the final battle of "Injustice For All", courtesy of Diana.
- It's All About Me: Only helps other villains if it benefits her.
- Jerkass: She's rude to everyone and only looks out for herself.
- Kick the Dog: Mocks everyone she beats.
- Lady of War: Invoked and Subverted. She acts as this trope but she's very cruel.
- Leotard of Power: Unlike most versions of the character, it's a very dark purple instead of pink.
- Mysterious Past: Almost nothing about her origins is known.
- Purple Is Powerful: Her costume and energy constructs are purple.
- She's Got Legs: Her costume shows these often.
- Smug Smiler: Always has a smile on her face when gaining the upper hand.
- Smug Snake: She's a snooty lady to say the least.
- Smug Super: She has reasons to be arrogant, since she's almost on par with Green Lantern.
He is also known as Black Manta, but was renamed in the show due to the Aquaman Embargo.
- Accidental Murder: When Deadman sees that he's recovered and is about to shoot Wonder Woman from behind, Deadman possesses Batman and shoots him with a gun lying on the ground, which causes Devil Ray to stumble back into an exposed electrical panel.
- Adaptation Name Change: He's Black Manta, but DC placed an embargo on Aquaman characters due to planning an Aquaman show and not wanting children to get confused by two versions of the same character. Black Manta was allowed to appear in Unlimited, but had to be renamed.