Baby Face (Alfonso Face)
Alfonso Vincenzo Giuseppe Face is a ruthless gangster with the face of a young child, but a manly voice of Edward G. Robinson. Though when he is defeated he whines like a baby, and he also wears diapers.
- Berserk Button: Don't disrespect his gal.
- Canon Foreigner: He was created for the series.
- Even Evil Has Loved Ones: He'll quite happily dish out the hurt to our heroes or indeed any innocent Red Shirt, but he genuinely loves Miss Manface and has made an honest woman of her by the time of "Night of the Huntress".
- Guns Akimbo: With twin Thompson SMGs.
- Kissing Discretion Shot: This happens with Mrs. Manface. We cut away to a guard's reaction, which is more worthy of a Gory Discretion Shot.
- Psychopathic Manchild: With special emphasis on the "child."
- Recognition Failure: He has no idea who Elongated Man is, but he does know about Plastic Man.
- Verbal Tic: Like Edward G. Robinson, see?
Black Adam / Teth Adam
A former champion of the wizard Shazam, five thousand years ago. Black Adam turned against the wizard, and was banished into the depths of space, until Doctor Sivana managed to summon him back to Earth.
- Evil Sounds Deep
- Fallen Hero: He became corrupted by his power, and tried to take over the world, and so the Wizard banished him to "the furthest star".
- Flying Brick: Black Adam has all of Captain Marvel's power, and absolutely none of his kindness or compassion. Adam is one foe Batman is completely outclassed by.
- The Red Baron: He identifies as the Thunder King.
- Villain: Exit, Stage Left: After being depowered by Doctor Sivana, the suddenly very old Teth Adam manages to slink away while everyone else is distracted.
- Villainous Widow's Peak
Black Manta is a criminal from the surface world who frequently clashes with AQUAMAN.
- Animal Motifs: The manta.
- Arch-Enemy: To AQUAMAN.
- Arm Cannon
- Badass Baritone: When he suddenly starts singing in "Mayhem of the Music Meister!"
- Color Character
- Disproportionate Retribution: In AQUAMAN's sitcom, he tries to blow up the hero's house because Fluke keeps destroying his garden.
- Even Evil Has Standards: Despite enjoying creating world-wide chaos, Black Manta finds being made to sing against his will despicable.
- Evil Is One Big, Happy Family: Black Manta betrays Orm the first chance he gets, mentioning he'd been waiting to do that since "about five minutes" after he started talking. Subverted though, since he later works with the notoriously humanist Gorilla Grodd with no quarrel.
- Evil Sounds Deep: Amplified by his helmet to sound deeper. Except when he sings, where he's surprisingly shrill.
- Eye Beams: A major upgrade in powers from one of his earliest animated incarnations.
- Sitcom Arch-Nemesis: Unsurprisingly, his role in AQUAMAN's sitcom."That old Black Manta is bound to annoy!"
Blockbuster (Mark Desmond)
While he simply appears to be a scrawny little punk, whenever Mark Desmond ingests the right chemicals, he becomes the super-strong Blockbuster, though his intelligence takes a hit when he does. Desmond's crimes are fuelled by the need for more funds. Chemicals don't come cheap, after all.
A genius with his mind stuck in a robotic body, the Brain uses his intellect to get back at the world by committing heinous crimes.
Catwoman (Selina Kyle)
Batman has never met another villain quite like the elusive and illustrious Catwoman, and not even a complex death trap can keep the two from friendly flirting.
- Abhorrent Admirer: During "Death Race to Oblivion!", she gains the attention of Woozy Winks. She hisses at him.
- Animal Motifs: Cats, naturally. She's based on them, likes using them, likes stealing cat-based objects in her crimes...
- Anti-Villain: Seen as such by Batman, who points out to Green Arrow she's a thief rather than the usual deranged killers and criminal masterminds he faces. Her targets are also the rich and museums for the most part. Both of which are lower on the Batman's list of priorities.
- Classy Cat-Burglar
- Dating Catwoman: Of course. Every altercation between Batman and herself displays heavy amounts of mutual attraction and Unresolved Sexual Tension.
- Deadpan Snarker
- Hunting the Most Dangerous Game: Played With. She engages in this with Batman during a cold opening, though with the intent of capturing and seducing him as a opposed to killing. After failing, she sadly laments the most dangerous game is in fact love.
- Ms. Fanservice: As per usual for the character. She's a woman who goes around in a purple dress that shows off her legs and tends to friendly flirt with Batman.
- Purple Is Powerful: She wears the same costume that her comic book counterpart wore in the Golden and Silver Age.
- She's Got Legs: This is the Catwoman whom we are talking about. Her long toned yet shapely legs are presented through the dress that she wears.
- Single-Target Sexuality: "My real prey is, and shall always be, Batman."
- Whip It Good
- Basement-Dweller: He still lives in his mom's basement, which is the first place Huntress looks for him.
- Fat Bastard: He's a chubby, slovenly nerd who doesn't even wear pants at work, and that work is tattling for supervillains.
- Information Broker: For supervillains, he supplies knowledge on what superhero's doing what, in exchange for money.
A criminal who has based himself on a 17th century swordsman.
- Nice Hat: Since he is based on a cavalier.
- Ye Olde Butcherede Englishe: Possibly the Cavalier's most heinous of crimes is his constant use of mangled faux-Elizabeathan English. It gets a Lampshade Hanging from Batman in one appearance.Batman: (after having just heard the Cavalier speak) Somewhere, Shakespeare is spinning in his grave.
The Cheetah (Priscilla Rich)
- Animal Themed Super Being: Type I.
- Arch-Enemy: One of Wonder Woman's main opponents.
- Composite Character: Of herself. Even if her real name is never mentioned, her looks and personality correspond to Priscilla Richie, the Golden Age Cheetah, while her strength and abilities seem to have a magical origin, like the third Cheetah, Barbara Ann Minerva.
- Curb-Stomp Battle: Gives one to Superman after she gets an amulet than enhances her powers, and covers her claws with kryptonite.
- Dark Action Girl
- Femme Fatalons
- Lightning Bruiser: Not just as fast and agile as it's expected from a cheetah-themed character, but also strong and resistant enough to fight evenly with Wonder Woman.
- Straw Feminist: She doesn't like that Lex Luthor doubts she'll be able to fight Superman, and, after defeating the hero, Cheetah takes great delight in mocking him.
- Vitriolic Best Buds: With Joker and Luthor.
Clock King (William Tockman)
The first villain to appear in The Brave and the Bold, Clock King has simple goals in life: assemble a clock-themed group of henchmen in a clock-themed secret lair, construct elaborate clock-themed traps and/or weapons, and use them to rob banks and/or kill Batman.
- Badass Cape: A fancy-looking one with a fur trim.
- Badass Normal: He's actually pretty ripped. He was once shown lifting weights in prison.
- Clock King: While worth mentioning simply because of the name, he has yet to demonstrate the precise timing to be worthy of this trope.
- Even Evil Has Standards: He, Black Manta and Gorilla Grodd all find being controlled by the Music Meister despicable.
- Jobber: Made a few appearances, but never got the time of day as the villain of a full episode. He'd appear, get beaten and the episode would move on.
- Nice Hat
- Pimped-Out Cape: Very fitting for a bad guy who deliberately bases himself off royalty.
- Starter Villain: He is the first villain to appear in the series, and makes more appearances after that. However, the actual villain with a relevant role in the plot is Kanjar Ro.
Crazy Quilt (Paul Dekker)
An ex-painter who leads a double life as a master thief, he is blinded during a battle with Batman and Robin. While in prison, he volunteers for an experimental procedure that would restore his vision. There is a side-effect, however: Even though he can see, he can only see in blinding, disorienting colors. Crazy-Quilt's wears a helmet that allows him to hypnotize his victims using flashing lights of various colors. It can also project lethal laser beams, blinding lights, and functions as artificial eyes since his own eyes no longer function; the lenses feed their input signal straight into his brain.
The greatest criminals of another Earth, the Crime Society assist Owlman in his villainous deeds.
- Archer Archetype: Blue Bowman.
- Color Character: Blue Bowman, Scarlet Scarab and Silver Cyclone.
- Creepy Monotone: Silver Cyclone speaks entirely with emotion, regardless of what he's saying, including his plans to torture Red Hood.
- Evil Counterpart: All of them are evil versions of the heroes, with evil versions of Green Arrow, Blue Beetle, Red Tornado, Atom, Aquaman, Plastic Man and Fire.
- No Name Given: The villainous Aquaman and Fire don't get identified by name on the show
- Omnicidal Maniac: All of them have no problem wiping out an entire planet with a nuke as an example, but Scarlet Scarab, Blue Bowman and Silver Cyclone are the worst.
- Teens Are Monsters: Scarlet Scarab is the youngest member of the team, but every bit as evil and psychopathic as the others, getting gleeful at the thought of wiping out an entire planet, and gloating over having someone's heart in his closet.
- Villainous Friendship: Dyna-Mite states he considers Owlman a friend.
- The Voiceless: The evil Aquaman and Fire don't say a word.
- Your Head Asplode: Silver Cyclone gets his head blown up mid-rant by the Red Hood.
Darkseid is the ruler of the planet Apokolips and the most feared being in the universe. He successfully conquered the Earth defeating both Batman and his new Justice League, but is forced back to Apokolips from an unexpected source.
- Always Accurate Attack: His Omega Beam, ultimately subverted in that Batman managed to dodge it when he used it.
- The Dreaded: Stated by Batman to be the most feared and evil being in the entire universe.
- No-Sell: Deflects a combined attack from AQUAMAN, Fire, Ice, Booster Gold, and Guy Gardner without any effort.
- No-Holds-Barred Beatdown: Batman challenges Darkseid to a physical fight without any of his powers. It does not end well for the Bat.
- Physical God: Played with; since it's a children's show Darkseid is never called a god outright, but Batman states he is so powerful that for all intents and purposes Darkseid is a god.
- Suicide Mission: Inverted. Batman taking on a physically far superior entity was not his finest moment.
Doctor Double X / Simon Ecks
A man with a very literal split personality. Simon Ecks commits crimes in order to drain enough energy that he can give his more brutish other side a physical body of his own.
- Adaptation Origin Connection: Double X is the cause of Firestorm's origins here, since it's his attack on a power plant that fuses Ronnie Raymond and Jason Rusch.
- Evil Counterpart: To Firestorm. Both are two people technically stuck in the one body, one a scrawny nerd, the other a towering thug. The difference is that Firestorm's components learn to get along and work together. The Simons just hate each other.
Doctor Thaddeus Bodog Sivana
A mad scientist who plagues Fawcett City with his demented schemes, with assistance from his children, requiring the intervention of Captain Marvel.
- Bald of Evil: Not a hair on his head, and evil as they come.
- Daddy's Little Villain: His children, Thaddeus Junior and Georgia, help out in his mad schemes.
- Gonk: Short, hunched, bald with pointy ears, coke-bottle glasses and an overbite. He's not winning any beauty contests any time soon, that's for sure. Thaddeus Junior and Georgia have inherited his looks.
- Mad Scientist: He is the original comic mad scientist, after all.
- Schmuck Bait: Batman manages to deprive him of the Wizard's power by wrongfully pronouncing "Shazam". Sivana can't help but correct him, at which point...
An orphan empowered with powers of Order and Chaos, he was suppose to keep the balance. However, the opposing sides of his psyche broke his mind.
As far as Equinox is concerned, there's a delicate balance between good and evil, and he's the only one concerned with preserving it. If some bad guy gets too powerful, he'll take them out to keep evil in check...and if a hero starts wiping out bad guys left and right, Equinox will try to keep them in check too.
- Arc Villain: A few appearances in the cold opens leads to an arc with him as the villain at the end of season one.
- Balance Between Order and Chaos: A very good example on how arbitrary this justification can be.
- Canon Foreigner: An original character to the show.
- Expy: Shares a similar backstory and obsession with balance to Silver Age Libra.
- A God Am I: After taking the power of all the of the Lords of Chaos and Order, he pretty much is this.
- Literal Split Personality: His consciousness was shattered into 12 pieces and shattered throughout time and space. Hatred!Equinox was the first to appear and was killed by four different versions of Batman from across time.
- Not Quite Dead: After Batman destroyed him, his consciousness was shattered into 12 parts and hurled throughout time and space.
- Not So Different: With Batman. Both devote their entire lives to their quests—seeing them as a never-ending responsibility.
- Omnicidal Maniac: Eventually snapped and tried to destroy and recreate the universe in his own image.
- One-Winged Angel: Absorbed the powers of Chaos and Order to grow into a gigantic, armored version of him with reality warping powers. Even when Batman is given the powers all the shows guest heroes who appeared up to the point in the series, he still can't beat him.
- Hatred!Equinox merged all of his Mecha-Mooks into a giant robot and possessed it to try and kill Future!Batman.
- A Pupil of Mine, Until He Turned to Evil: As stated by the Lords of Chaos and Order.
- Reality Warper
- Thanatos Gambit: He dies in an explosion during a fight with Batman and Doctor Fate in "The Fate of Equinox!"—but his soul persists, and is now able to freely access the powers of Order and Chaos with the limitations of his worldly body gone.
- Villainous Breakdown: After Batman pointed out that he wasn't perfectly balanced, he snapped and his body began to crack along with his mind, allowing Batman to defeat him..
- With Great Power Comes Great Insanity: The strain of his responsibilities eventually took a toll on his mind.
- Yin-Yang Bomb: He has mastery of both Order and Chaos magic.
Gentleman Ghost (Jim Craddock)
"Gentleman" Jim Craddock was a notorious highwayman in 19th-century England, but as his fame spread, he began to seek something more than simple wealth. In search of the ultimate power he made a deal with the demon Astaroth— in exchange for ten human souls, he would be granted immortality. Unfortunately for him, Astaroth's definition of "immortal" didn't quite match up with Craddock's. When the courts ordered Gentleman Jim hanged for his crimes, his body died, leaving his soul to wander the earth as "Gentleman Ghost," seeking revenge on the living— particularly Batman. As a ghost, Craddock is nearly immune to tangible weapons— only the Thanagarian element "Nth Metal" can touch him if he doesn't want to be touched.
- Achilles' Heel: He has a weakness to Nth Metal like all ghosts.
- Arch-Enemy: To Batman, since he was responsible for his death.
- The Blank: Played with. He does have a face, but it's usually rendered invisible and only his top hat and monocle can be seen. However there are certain instances like lightning strikes or when he is hit by Nth Metal will his true face be revealed.
- Deal with the Devil: He wanted immortality and Astaroth promised his soul would never pass from the Earth.Etrigan: You're a foolish man to take that deal! A demon's promise is never real!
- Dragged Off to Hell: His final fate is getting pulled into the ground by his undead army.
- Dem Bones: His true face is decaying and skeletal.
- Evil Brit: He is an Englishman who menaced London when he was alive.
- Evil Laugh: Gives off demonic cackles.
- Hoist by His Own Petard: He is ultimately defeated by his own undead army where he gets Dragged Off to Hell.
- Jack the Ripoff: He is implied to be the show's version of Jack the Ripper back when he was alive. Although the myth also got tied together with Sherlock Holmes.
- Nice Hat
- Pet the Dog: He does genuinely inform a civilian that they were being scammed by a phony psychic, although he may have done so for the fun of ruining the fake's reputation.
- Rogues-Gallery Transplant: While he has fought Batman before, he is typically a Hawkman villain. The show makes him a very personal enemy to Batman. He does become Katar and Shayera's enemy in the comics based on the show.
- Victorian London: Given that when he was alive he coexisted with Sherlock Holmes, he is also presumably from this era.
- Wicked Cultured: He's a very sophisticated gentleman, but is pure evil.
One of the more frequently featured villains in the show. Grodd helped set the tone for the series in the second episode by turning Batman into an ape on Dinosaur Island.
- Badass Bass: In "Mayhem of the Music Meister!"
- Blatant Lies: He's had that utility belt that looks like Batman's for years. You've just never seen him wear it.
- Breather Episode: Was the featured villain of the very silver aged "Gorillas In Our Midst!" after the Darker and Edgier "Chill of the Night."
- Even Evil Has Standards: As with Clock King and Black Manta, he finds Music Meister's hypnotic control "dastardly, despicable, and imminently kickable".
- Everything's Better with Monkeys
- Fantastic Racism: Against humans, and any other sapient species he can find.
- Fantastic Slur: A good way to annoy Grodd is refer to him as a monkey. It invariably gains an annoyed "MONKEY?!" from him.
- Hypocrite: Grodd will go on and on about how stupid humans are... but it doesn't stop him working with them to suit his own ends.
- Hypocritical Humour: One episode has him claim Batman has an unhealthy obsession with him. A later episode shows Grodd has an unhealthy obsession with Batman.
- Insufferable Genius: In the words of Batman, "Grodd considers himself a genius first, and an ape second."
- Large Ham
- Mind Control
- Rogues-Gallery Transplant: Usually an enemy of the Flash, this one constantly battle Batman and even ends up in Arkham.
- Unexplained Recovery: Was turned human at the end of his first appearance. After a cameo as a human he's back to normal.
- Worthy Opponent: Considers Batman one."Batman. The one human worthy of my intellect."
Harley Quinn (Dr. Harleen Frances Quinzel, M.D.)
A psychiatrist who worked at Arkham Asylum until she met the Joker and grew to love him, eventually becoming his accomplice and on-off sidekick. Harley is seen with the Joker at the antiques museum in "Emperor Joker!" when he is about to steal his memorabilia until Batman shows up. While both the Dark Knight and the Clown Prince of Crime fight each other, Bat-Mite comes along and falls for her. When Bat-Mite accidentally gives all his powers to the Joker in his attempt to help Batman, things start going to hell when the Joker recreates the universe in his own image and uses the Dark Knight as a cosmic punching bag by killing him repeatedly and bringing him Back from the Dead each time. At the same time, both she and Bat-Mite question their faith in their heroes, since the latter care more about each other, and the former wonder if they'd be "better off without [them]".
- All Women Love Shoes: She wears her high heels in this one.
- Bash Brothers: A rare case when she and Bat-Mite work together to stop Joker-Mite from killing off Batman, even when using her title cards as weapons.
- Blowing a Raspberry: She does this to one of the Joker's henchmen, even though she is rendered mute.
- Boyish Short Hair: Sometimes.
- Cute Mute: When she becomes magically silenced by the Joker. Of course, this is seen as a defiance of the trope.
- Dark Mistress: For the Joker.
- Deliberately Monochrome: Her appearance along with Joker's other henchmen; see Shout-Out below.
- Drop the Hammer: Even when she is Deliberately Monochrome, she never forgets that she is not afraid to use a mallet.
- Dumbass Has a Point: She warned Joker that going into Batman's mind could backfire on him.
- Gold Makes Everything Shiny: Her necklaces and bracelets, though they are Deliberately Monochrome.
- Hair Decorations: Her tiara with a ruby on the forehead part.
- Impossible Hourglass Figure: And what a beauty Harley is with that figure.◊
- Improbable Weapon User: While she is silenced by the Joker, whenever she tries to say something, her title card appears for a few seconds. She and Bat-Mite use this to their advantage by using these title cards as weapons in order to stop Joker-Mite and the others from killing Batman.
- Little Black Dress: Her 1920s style black jazzy fringe flapper dress, right down to the knees.
- Shout-Out: She is modeled after silent film actresses of The Roaring '20s; plus, the title cards that appear whenever she tries to speak though she is muted date back to the silent films that lasted until the late 1920s.
This incarnation of the Clown Prince Of Crime is as clownish as he's ever been, but underneath the fun-loving, acid-pie-throwing exterior, he lives to destroy Batman at all costs. Which makes it a bit confusing when he has to deal with two of them.
- Adaptational Nice Guy: He's as dangerous as ever, but he genuinely respected and wanted to help the Weeper. He also (though rather grudgingly) saved a kid's life when he teamed up with Batman, and doesn't seem to be abusive towards Harley.
- Ax-Crazy: Even in the Lighter and Softer Silver Age atmosphere, he retains some of his murderousness from his Golden Age and modern interpretations.
- Crazy-Prepared: He's got several gadgets that combat Batman's in "The Vile and the Villainous."
- Crouching Moron, Hidden Badass: Particularly his "what-if" future incarnation.
- Death Trap: He's put Batman through a few.
- Disney Villain Death: His hypothetical death in "The Knights of Tomorrow!" has him plunge into the river. They Never Found the Body.
- Enemy Mine: He's forced to team up with Batman when Owlman comes to Gotham.
- And in a surprisingly dark twist for the series, his desire to die at Batman's hands to make him feel the guilt is eventually mentioned.
- Evil Laugh: If he didn't write it he at least signed the Grandfather Clause.
- Fourth-Wall Observer: Provides a play by play in Death Race to Oblivion. Just because he can.
- Homage: This version of the Joker is both an homage to Dick Sprang's Joker's design and Cesar Romero's performance on the '60's Batman show.
- Hyperspace Arsenal: His primary method of combat.
- I Call It "Vera": In "Emperor Joker!", after the Joker is given Reality Warper powers, he uses a springed, giant Power Fist on Batman and calls it, "My very own Hammer of Injustice!" (a parody of Batman's "Hammer of Justice")
- Joker Immunity: Lampshaded in "The Knights of Tomorrow!""I've been blown up, dropped down smokestacks, fed to sharks—I'm the Joker. I always survive!"
- Large Ham: He's not the same otherwise.
- Pet the Dog: He's a genuine fan of washed-up villain the Weeper, and even tries to help the latter get back to his prime.
- Put the "Laughter" in "Slaughter": He laughs as much as you'd think when he repeatedly kills Batman as Emperor Joker.
- Reality Warper: Thanks to Batmite in "Emperor Joker!"
- The Red Baron: "The Clown Prince of Crime", "The Harlequin of Hate".
- Rocket Punch: Tries delivering one (which turns into a bomb) to Batman in "Emperor Joker!"
- Shock and Awe: In "Emperor Joker!" he uses his superpowered Electric Joybuzzer when powered up to shock Batman into submission, which is something worthy of Emperor Palpatine of Star Wars.
- Villain Episode: Joker: The Vile and the Villainous. They even changed intro.
- Villainous Harlequin: This version owes more to his 60's appearances than his modern Monster Clown ones. But then again, there's "Emperor Joker!"...
- Villain Protagonist: In the episode "The Vile and the Villainous", where the roles switch and Batman's the antagonist.
- Villain Song: ''Where's the Fun in That?" in "Emperor Joker!"
- What Does This Button Do?: In The Teaser to "Joker: The Vile and the Villainous!" He ends up blowing up the Earth.
- Where's the Fun in That?: The theme of the above Villain Song in "Emperor Joker!", in response to Harley Quinn asking him if he's going to unmask Batman.
- He also uses this phrase in the episode where he teams up with Batman in reference to being a goodguy.
- Wild Card: He might be an insane psychopath, but he'll gleefully team up with the Bat if he thinks it will be fun or amusing. Occasionally overlaps with The Only One Allowed to Defeat You.
- Starter Villain: Aside from Clock King being introduced, Kanjar Ro is the first villain to appear in the series with a much more relevant role in the premiere.
Kite Man (Charles Brown)
The former boss of Eel O'Brien in his criminal days, Kite Man is a crazed maniac obsessed with kites and Benjamin Franklin due to a childhood incident. His two desires are to be the most famous kite-related person ever, and to get revenge on O'Brien.
- Archenemy: For Plastic Man. Fittingly, Plastic Man's arch-nemesis is every bit as ridiculous as the rest of his life.
- Evil Counterpart: Gains a version of Plastic Man's own powers, turning him into a dark version of Plas.
- Irrational Hatred: Thanks to his childhood accident, he has a deep hatred for Benjamin Franklin.
- It's Personal: Eel O'Brien's greed was what caused Batman to arrest him, and then he identified Kite Man during his trial. Kite Man swore revenge on O'Brien and his loved ones.
- Large Ham: In fairness to him, he is insane.
- Overly Narrow Superlative: He wishes to become the most famous kite-related person in history!
- Rhetorical Question Blunder: He asks what Ben Franklin ever accomplished. Plastic Man and Woozy both point out things he was responsible for.
- Shout-Out: Take a look at his theme, then take a look at his real name.
- Too Dumb to Live: "Long Arm of the Law" shows the incident that drove him insane, playing with a kite in a thunderstorm with metal braces while standing in a bucket of water.
K'rull the Eternal
A Neanderthal man who gained immortality from the strange light of a glowing red meteor, K'rull believes himself to be intrinsically superior to the mere humans who now rule the globe. He lives for the day when he can overthrow Homo sapiens and take his rightful place as ruler...and don't let his caveman look fool you, because he's more than smart enough to do it.
- Composite Character/Expy: Of Captain Marvel villain King Kull and Vandal Savage, with a hint of Darkseid's son Kalibak.
- Genius Bruiser: Several thousand years have given him a lot of time to get some reading in. Though it doesn't mean he can't enjoy the fun side of particle colliders - smashing things into walls.
- Green Rocks: He got his immortality from a red meteorite.
- Karma Houdini: Since he's immortal, he'll never die of old age. A flashforward shows he'll still be around in the 25th century (though by then he does seem to have given up on overt evil).
- Names to Run Away from Really Fast: His name sounds like "cruel".
- Sharp-Dressed Man: By the 25th century, he's taken up wearing classy suits instead of dressing like a caveman.
- Who Wants to Live Forever?: He's immortal, so he outlives everything he conquers.
- Arch-Enemy: To Superman, naturally.
- Bald of Evil
- Big Bad: Cleary shown to be in charge of the Legion of Doom.
- Curb-Stomp Battle: Delivers one when he breaks into the Batcave, with his Power Armor designed to fight Superman proving more than a match for anything Batman has.
- Fat Bastard: Much chunkier than in previous adaptations. Must be all those cakes.
- Gambit Roulette: Exposing Superman to Red Kryptonite. He gets what he wants (ruining Superman's reputation) and knew the effects would only last 24 hours, but it was quite a risk to have an out of control Superman running around.
- Green Rocks: Relied on Kryptonite so much Superman no longer needs super vision to see it coming.
- Mythology Gag: Shares some of his DCAU counterpart's Ambiguously Brown-ness, and Kevin Michael Richardson does make him sound similar to Clancy Brown (who voices him in that continuity).
- Powered Armor
- Smug Snake
- Vitriolic Best Buds: With Joker and Cheetah.
Mrs. Manface (Manfreda Donatella)
Manfreda Donatella Face is the wife of Babyface. She has the face of a square-jawed man (complete with a five o'clock shadow), but the voice and body of a normal woman.
Evil ruler of War World, he originally sought to use Jonah Hex as a way to beat batman once and for all, when that failed, he brought a War Moon to earth in an attempt to destroy the world, while also humoring its heroes and villains with a race to see if he'd do it.
- Bond Villain Stupidity: Who would teleport losing racers to a cell rather than let them die? He does ensure the prisoners are separated from their various tools and trapped behind forcefields, but he foolishly never considered that Batman and Green Arrow would anticipate that.
- I Lied: Said verbatim in Death Race to Oblivion
- Lantern Jaw of Justice: Well, it is a big chin.
- Sibling Rivalry: with his sister, Mongal.
Morgaine Le Fay
Medieval witch. Arthur's sister. You may have heard of her. Enslaved Etrigan in Arthurian times to help take over Camelot and kill Merlin.
- Adaptational Attractiveness: The comic version of Morgaine (as well as her counterpart in the Justice League cartoon) has to wear a mask and armor to hide her hideously decayed face. In this show, she's downright gorgeous. Justified since this is supposed to be during her early years.
- Breath Weapon
- Cain and Abel: She's the Cain to Arthur's Abel, overthrowing his kingdom.
- Composite Character: She takes on a bit of Nimue, Merlin's student who betrayed him.
- Evil Brit
- Expy: Is almost identical to Disney's Maleficent, both being powerful evil witches obsessed with gaining power who magically transform into dragons to fight the heroes, even both dying from being stabbed in the stomach by a magical sword while in dragon form.
- Femme Fatalons: Which are capable of scratching through stone.
- Public-Domain Character
- Scaled Up: She turns into a dragon to get rid of Jason Blood, Batman and Green Arrow.
- Taken for Granite: Her favorite method of dispatching an enemy. Even her dragon fire turns folks to stone.
- Vain Sorceress
The Music Meister
Picked on at school for being in choir, he finds that he can control people's minds using his singing voice, resulting in possibly the greatest Musical Episode of anything ever.
- Camp Straight: He has a musical theme, Unlimited Wardrobe of ostentatious outfits, an openly gay voice actor—and a Villainous Crush on Black Canary.
- Canon Foreigner: Has no comics counterpart, though he did end up as a villain on Arrowverse's Supergirl (2015) and The Flash (2014).
- Card-Carrying Villain: Proclaims himself to be "the maestro of villainy".
- Changing Clothes Is a Free Action: He goes through around a dozen costumes, including eight in a single extended scene.
- Compelling Voice: A compelling singing voice. He doesn't even have to exactly sing the commands. He just has to sing, and people fall into step.
- Evil Redhead
- Freudian Excuse:
- Bullies used to pick on him because he sang in choir, but something very strange occurred when he kept singing higher. The ruffians around him quickly fell into a trance, and it was then, with wicked glee, he made those puppets dance!
- Also, his initial Villain Song continually mentions him "settl[ing] the score."
- Instant Costume Change: It may very well be one of his superpowers. He has a notorious habit of changing outfits midbattle.
- Large Ham: As the Big Bad of a musical episode, what else could he be?
- Love at First Note: With Black Canary (even when she knocks him flat with her sonic screaming) but when she rejects him for Batman he attempts to dispatch her.
- Making a Spectacle of Yourself
- Mad Artist: He's a great singer, who takes "wicked glee" in using his hypnotic voice to control people into doing big (and lethal) music numbers while they steal or fight heroes for him. He's also shown playing to an audience of cardboard cut-outs at one point.
- The Music Meister: The proud Trope Namer.
- Musical Episode: Instigates one.
- Musical World Hypotheses: The musical episode is explained by him having spontaneous musical numbers as an explicit super power.
- Mythology Gag: Neil Patrick Harris is credited as a "Special Guest Villain" for this episode.
- Psychic-Assisted Suicide: "Now that Batman's been delayed/Your usefulness has passed/A distraction is what I need/So kick into that blast!" (Of course, Batman saves them.)
- Squishy Wizard: As difficult as it is to fight him due to his Mind-Control Music. It only takes Batman a single punch to knock him out.
- Tenor Boy: It's obvious that the Music Meister is a pretty young tenor.
- There Is No Kill Like Overkill: His Death Trap. Did they survive the Frickin' Laser Beams, the water cannons loaded with acid and the pendulum blades? Now The Walls Are Closing In before a Trap Door opens to an Acid Pool. Let's also have a Time Bomb just in case. When your prisoners are Batman and Black Canary, this is of course Bond Villain Stupidity at its finest.
- Unlimited Wardrobe: He switches through several outfits throughout his episode that signify different musical eras.
- Villain Song: Every song he sings.
- Wing Ding Eyes: His eyes and glasses are two musical notes.
Exactly who Owlman is has never been revealed, but what we do know is that he's as evil as Batman is good. Exactly as evil. Batman's counterpart in an alternate universe, Owlman led a team of other such evil twins against the heroes of his world, and eventually defeated and imprisoned all but one. Now, with his Earth subjugated by the Injustice Syndicate, Owlman's sights are set on the conquest of other worlds.
- Animal Motifs
- Bat Signal
- Costume Copycat: He steals an earlier version of Batman's outfit, and uses it to ruin Batman's reputation.
- Pungeon Master: Reels off a particularly painful Hurricane of Puns to his captured enemies.
- Shadow Archetype
- Shout-Out: Owlman's costume is similar to Justice Lord Batman. When he dresses up as Batman, he uses Batman's original costume from the comics◊.
A Germanic mad scientist who once fought the JSA, long ago, going missing when the first Black Canary damaged his equipment, only returning in the modern day and age thanks to a loyal flunky.
- Hoist by His Own Petard: Gets zapped with his aging staff, turning him into a baby, after having aged the JSA and Batman with it already.
- No Swastikas: He's got a German-accent, and took part in some kind of military conflict which America was a part of many decades ago, but his political and national associations go distinctly unmentioned.
- Too Dumb to Live: Trying to use his staff even after Black Canary had damaged it with her Canary Cry. Both times, in fact.
Professor Zoom (Eobard Thawne)
The yellow-clad Evil Counterpart to the Flash, Eobard Thawne is a criminal who hails from the 25th century. His mission is to destroy his lawful nemesis and all that the Flash stands for.
- Composite Character: He's ostensibly Eobard Thawne (Reverse-Flash I/Zoom I) in his antagonism to Barry, his mask is that of Hunter Zolomon (Reverse-Flash II/Zoom II) with the black-and-red eyes. He also has speed minions who get their speed from a machine that is powered by a captured speedster which is taken from Savitar.
- Curb-Stomp Battle : One of the few villains from the series that Batman can't defeat by his own even after the hero gets temporary super speed.
- Evil Overlord: Of the 25th century, in "Requiem for a Scarlet Speedster."
- Gadgeteer Genius: He was able to create a device that siphoned the previously-thought-to-be-dead Flash's speed into arm-bands that powered his private army and exponentially increased his own speed.
- Mad Scientist
- Red Eyes, Take Warning
- Super Speed
Psycho-Pirate (Roger Hayden)
Gaining powers off of others' fears, Psycho Pirate lures his victims into traps that will leave them reliving their worst nightmares so he may feed off of pure fear.
Punch & Jewelee
A pair of acrobatic, clown-themed criminals.
A well intentioned villain who wants to protect nature...by destroying human civilization. Despite his views on nature, he's rather old fashioned when it comes to his daughter Talia, feeling that a woman is incapable of succeeding him.
- Beard of Evil
- Heir Club for Men: Talia just isn't good enough, apparently.
- Icy Blue Eyes: His eyes are a very noticeably pale blue.
- Offing the Offspring
- Powered Armor: In Crisis, 22,300 miles above Earth.
- We Can Rule Together: Tries this on Robin, who declines.
- Well-Intentioned Extremist: As with most versions.
- Worthy Opponent: In the comic "Batman Dies at Dawn", he agrees to let the Robins use the Lazarus Pit to save Batman, because he deserves a better demise than just some thug shooting him (though he does neglect to mention the side-effects of the Pit).
A m-genius scientist on the planet Zur-En-Arrh, and arch-enemy of that world' Batman, the short-tempered Rothul is determined to show the whole world how great his mind is, by stomping it flat. Just after he gets rid of that meddling Batman, first.
- Awesomeness by Analysis: Manages to work out how to disable Batman's powers, simply by deducing his likely point of origin.
- Bald of Evil
- Cardboard Prison: Apparently Zur-En-Arrhian authorities don't bother searching the supervillains they lock up, so he's able to summon one of his robots to bust him out the minute he gets bored.
- Expy: He is quite blatantly the Silver Age Lex Luthor, right down to being voiced by someone who'd voiced him previously.
- Mad Scientist
- Meaningful Name: Just to drive the point home, his name is Luthor, reversed.
An adversary of Plastic Man's, this latex leviathan may not be very bright, but his rubbery nature makes actually knocking him down a difficult prospect.
The Green Lantern of Sector 1417, considered the most peaceful of all sectors in the known universe. However, during the fight against Despero, Sinestro shows his true colours when he turns against the Corps.
- Bitch in Sheep's Clothing: He initially seems like just another Green Lantern, even allowing Batman to assist when Guy tells him to get lost. Then it turns out that he took over his own world, and decides to kill Mogo as plan A. While beating up Guy, he even declares he thought himself better than the other lanterns.
- Obviously Evil: With a name like that? And yet Batman completely trusts him until Despero reveals what he did.
- Sealed Evil in a Can: After kicking his butt, Guy seals Sinestro away inside his ring.
- Shoot the Dog: While Batman goes after Despero, Guy finds Sinestro setting bombs all around Mogo, preparing to kill him, on the grounds it's safer than letting Despero keep controlling him... and because he doesn't trust G'nort to succeed.
- Alternate Company Equivalent: to Marvel Comics' Galactus. (Actually Starro came first, but the whole planet-devouring shtick is more Galactus' than his.)
- Big Bad: Of a Story Arc introduced on in the show's Cold Openings, where The Faceless Hunter is gathering most of the superheroes to become Hive Mind slaves. Their roles reverse after Starro is killed by Earth's heroes, with the Faceless Hunter taking over as the main villain and the now, apparently mindless creature he turns Starro's remains into serving his destructive whims.
- Eldritch Abomination
- Guttural Growler
- Hive Mind
- Madness Mantra: "Starro lives".
- No Celebrities Were Harmed: Kevin Michael Richardson seemed to be channeling Frank Welker's Dr. Claw voice.
- One-Winged Angel: Thanks to B'wana Beast's powers.
- Starfish Aliens: Literally.
Mongul's champion, and primary underling.
Talia al Ghul
Ra's al Ghul's daughter, she wants to be his heir and feels threatened by his interest in Robin. So far she doesn't appear to return Robin's attraction to her.
- Daddy's Little Villain: Lacks the innocence some of her other incarnations have, though that doesn't make her totally loyal to Ra's. The fact that her dad prefers a male heir may have something to do with it.
- Dating Catwoman: Robin was hoping for this, but is quickly shot down, though it's because she's only interested in Batman.
- I'll Kill You!: Tells Robin that if she sees him again after freeing him, she'll destroy him.
- Inadequate Inheritor: Ra's knows just how skilled she is, but would still prefer a male heir. He tells Robin this while she's in the same room.
- Knife Nut: She dual-wields a pair of knives in a fight.
- Mad Scientist's Beautiful Daughter: See Dating Catwoman.
- Purple Eyes
- Spy Catsuit: Actually more coverage than she often has in her other depictions.
The Terrible Trio
Fox, Shark, and Vulture are bored millionaires who become martial artists that wear masks of the animals they represent. As members of the Shadow Clan, they plan to steal the Wudang Totem from its respective temple.
- Adaptation Origin Connection: "Return of the Fearsome Fangs!" has flashbacks that depict them training alongside Batman and Bronze Tiger prior to Bruce Wayne becoming Batman. While Bruce and Ben Turner are martial artist in the comics, the Trio aren't and Bruce and Ben didn't train together.
- Adaptational Badass: This version of the Trio are skilled martial artists who trained alongside Batman and Bronze Tiger.
- Arrogant Kung-Fu Guy: Especially Fox.
- Drop the Hammer: Shark.
- Dual Wielding: Vulture.
- Master Poisoner: Fox.
- Terrible Trio
- Upgrade Artifact
Two-Face (Harvey Dent)
Once Gotham City's DA Harvey Dent, his face got scared and his personality was split. Half good, half evil. His coin decides what the two personalities do. Batman hopes he can be reformed because Harvey was a good friend of Bruce Wayne's.
- Combat Pragmatist: Fair's good... But guns are better!
- Enemy Mine: Manages to be both the guest hero and the villain of his debut teaser after his mooks question the results of sparing Batman after a coin toss.
- Eviler Than Thou: Lost to Matches Malone. Actually Batman with Amnesia.
- Guns Akimbo: And he keeps a couple of spares.
- Pungeon Master: The number two comes up once or twice when he speaks."Two-bit punks! Think you can double-cross Twoface?"
- Role Reprisal: In "Chill of the Night!", he's reprised by his Batman: The Animated Series voice actor.
The Faceless Hunter
- Alternate Company Equivalent/Expy: To the Silver Surfer, with a twist. That twist being he's everything the Surfer isn't. Norrin became the Surfer in exchange for Galactus sparing his world. The Hunter became Starro's herald in exchange for Starro destroying his world.
- Dragon Ascendant: After Starro is killed, he pretty much becomes the Big Bad of the story arc.
- Dragon with an Agenda: He'll do whatever Starro asks in exchange for the chance to hunt prey.
- The Faceless: Duh.
- Hunting the Most Dangerous Game: His main motivation.
- Knight of Cerebus: Lacks any of the camp the usual villains have, and is much more evil.
- Villain Respect: B'wana Beast's power strikes a chord with him.Faceless Hunter: You interest me.
B'wana Beast: Okay, I get it. You think I'm a joke. Join the club.
Faceless Hunter: A joke? No. I've never been more impressed.