Character page for Justice League Action.
The Justice League
- Genius Bruiser: Most of them can handle themselves in a fight, but they also know how to think their way out of a problem.
Superman (Clark Kent)
- The Ace: Wonder Woman, at least, regards him as such in "Good Cop, Bat Cop."
- Action Hero
- Apologetic Attacker: When he's interrogating Deadshot as the "Bad Cop." It completely ruins the effect.
- Big Good
- The Cape: Being Superman and wearing a cape, this goes without saying.
- The Leader: Of the Justice League as a whole.
- Genius Bruiser: While super strong and nigh invulnerable, there are moments where he had to think tactically and outside of the box to win a battle or escape a predicament.
- The Kirk: Of the big three, he's not as controlled as Batman or as emotional as Wonder Woman.
Batman (Bruce Wayne)
- The Ace: Despite not having superpowers, he's the most competent member of the League and the one everyone looks up to (and fears disappointing).
- Badass Normal: He has no powers, but he's the most skilled in hand-to-hand of the big three.
- Berserk Button: He sends a rather menacing Death Glare at Cyborg when the latter has to control Batman like a video game character against Toyman and complains that Batman has no powers.
- Jerk with a Heart of Gold: He's a no-nonsense fighter and strategist with a bit of a crusty attitude, but you can't deny that he wants to protect others.
- Laser-Guided Amnesia: In "Time Out", he chews out Booster Gold for his It's All About Me attitude. However, the plot ends up being about him getting trapped outside of the timestream with him and discovering that Booster does heroics that nobody else wants to do on his own time. But it doesn't last, as Batman's life gets put in danger and Booster has to send him back to the timestream despite that it'll wipe his memories all the way back to the last time they saw each other being when he got chewed out. Batman is reluctant to go through it, but tells Booster that he hopes he'll learn about Booster's true self again one day.
- The Spock: Of the big three, he's the most controlled and logical of the league and is a master of exposition.
Wonder Woman (Diana of Themyscira)
- Amazonian Beauty: Is very muscular and beautiful. Then again, she really IS an Amazon.
- Adaptational Modesty: Her new costume doesn't show any cleavage and now sports a warrior skirt.
- Blood Knight: The one whos more than happy to fight someone.
- Boobs of Steel: She wouldn't be Wonder Woman without them
- Bound and Gagged: Happens quite often, with an emphasis on the "Bound", although she also gets gagged◊ in Selfie Help.
- Jerk with a Heart of Gold: She has quite the thirst for battle, and is a bit pushy, but she is still a tried and true warrior who looks out for others.
- The McCoy: Out of the main three, Wonder Woman is very energetic and and eager for battle.
- Ms. Fanservice: She's drawn with an Impossible Hour Glass Figure and is well-endowed, expected something else from Wonder Woman?
- Running Gag: Wonder Woman gets wrapped up in her own Lasso of Truth quite often.
- Single Woman Seeks Good Man: She's dating Superman because he's someone who cares for the real her, not just her superhero persona.
Shazam (Billy Batson)
The Flash (Barry Allen)
- Composite Character: He's Barry Allen, but his characterization has more in common with Wally West.
- Demoted to Extra: Most Justice League stories feature The Flash in a major role, since he's a founding member of the team. He's barely seen in this show.
Green Arrow (Oliver Queen)
- The Ace: He's an expert fighter and master archer.
- A Day in the Limelight: He's one of the most recurring characters in the show.
- Beware the Nice Ones: While he's very social, friendly and likes to crack one-liners and jokes, when he gets serious, he gets serious.
- Overshadowed by Awesome: While he's a skilled and resourceful street vigilante, many doesn't take him seriously due to Batman's reputation and position in the League.
Green Lantern (Hal Jordan)
- Adaptational Personality Change: He's still cocky, but this version of Hal also has a tight grip on the Idiot Ball. He's more like a toned-down Guy Gardner than Hal Jordan.
- Adaptation Dye-Job: His hair is black instead of brown.
- Demoted to Extra: Despite being a founding member of the Justice League in most incarnations, he doesn't appear as often as other characters in this show.
Martian Manhunter (J'onn J'onzz)
- Adaptational Personality Change: He is shown as more naive and active than other adaptations.
- Demoted to Extra: He's usually a major character in Justice League adaptations thanks to being a founding member of the team in the comics (at least, before the New 52 reboot). Here, however, he only made a few appearances.
Blue Beetle (Jaime Reyes)
Booster Gold (Michael Jon Carter)
- Adaptational Backstory Change: In the comics, he went back in time to get rich because he had just been exposed for deliberately losing football games for his father's gambling, which led to him getting kicked out of his college football team and being expelled from university. He got a job as a janitor at a superhero museum, which gave him the idea to use the superhero gear to travel back in time to get rich. The show takes the former college football player and gambling father parts out, but his reason for getting rich is because he wanted to have money to support his marriage.
- Attention Deficit... Ooh, Shiny!: By his own admission, he has a super short attention span.
- Awful Wedded Life: Margo became Red Velvet not because he left her at the altar, but because he turned out to be a terrible husband.
- Brilliant, but Lazy: HOO BOY! Booster can be a very creative and useful crime-fighter when he bothers to focus. Of course, getting him to focus is a superhuman feat in and of itself.
- Crouching Moron, Hidden Badass: When he's on League duty, he comes across as a self-centered and lazy slacker. But when things get serious, especially when the timestream is in danger, Booster is extremely serious and professional. In fact his few silly moments in "Time Out" were mostly the result of him trying extra hard to impress Batman.
- A Day in the Limelight: He's one of the most recurring characters in the show.
- Demoted to Extra: Compared to his past appearances alongside Booster, Skeets is more or less reduced to a background prop here.
- Forgotten Aesop: After spending the entirety of "Time Out" showing us that Booster is specialized, not stupid, "Watchtower Tours" and "Phased and Confused" revert him back to useless idiot, and "Booster's Gold" combines that with irresponsible use of time travel.
- The Friend Nobody Likes: Not very well liked by the other leaguers, usually Batman. Though later episodes show that they do have some faith in Booster's desire to ultimately do the right thing.
- The Greatest Story Never Told: As the Trope Namer, it turns out he also suffers from this in this version. We learn that he defends the timestream from corruption, something that no one else knows about. Why? Because You Never Asked. Although it's implied that another reason is so that the wrong people don't get the idea to stop him and mess up the timestream. When Batman learns about this in one episode, having been berating him earlier in the episode for being irresponsible, he apologizes for underestimating Booster and tells him that he's a good person before circumstances force them to erase Batman's memory of it.
- Inter-Class Romance: In his proper era, Booster was a security guard who fell hard for heiress Margo Montgomery. She loved him regardless of status, but he considered himself Unable to Support a Wife, so he came to the 21st century to get rich as a superhero.
- Poor Communication Kills: On the day of his wedding to his fiancee, Margo, he realized that he was dirt poor in comparison to her as she was an heiress, so he left her at the altar. It wasn't because he wanted to dump her, but because he wanted to make enough money to support the both of them rather than rely on just her as their source of financial income. Does he tell her anything about this? No. What made him think it was a good idea to do it during their vows? Who knows. Naturally, this leads to Margo becoming a supervillain to get revenge on him for breaking her heart.
- The Voiceless: His Robot Buddy Skeets is completely mute in this series.
- What You Are in the Dark: He calls himself the superheroes' "rat guy" — he's the guy that does the minor heroic jobs that nobody else wants to do. Of course, he never tells anyone this because You Never Asked and nobody would believe it to be anything more than another empty brag unless they see it in person like how Batman did.
- You Never Asked: It turns out he frequently keeps the timestream from being corrupted, which Batman discovers in one episode. Surprised at his ability to take responsibility for something as huge as that, Batman asks him why he never told anyone this, which Booster answers with this trope (as opposed to, say, not wanting the wrong person to find out and get an idea...) Considering how critical his role is, this is probably for the best.
Plastic Man (Patrick "Eel" O'Brian)
- The Friend Nobody Likes: Even more so than Booster Gold if that's possible. Plastic Man is at the bottom of the totem pole — he's outranked by both the League Supercomputer and Superman's dog Krypto.
- Lethal Joke Character: He's considered by Brainiac to be one after he ends up thwarting his plans, destroying his ship and saving the worlds he shrank. In response, Brainiac declares him the highest priority target on Earth, overtaking Superman.
- Rubber Man: Half his powerset.
- Technically Naked Shapeshifter: His various costumes are just part of his rubbery, shapeshifting body. Firestorm is squicked out by this revelation.
- Voluntary Shapeshifting: The other half of his powerset.
Hawkman (Katar Hol)
Cyborg (Victor Stone)
Supergirl (Kara Zor-El)
- Beauty Is Never Tarnished: Subverted in "Keeping Up With The Kryptonians", when she lets out a loud unladylike burp.
- Grand Theft Me: Felix Faust possesses her in "The Goddess Must Be Crazy".
- Valley Girl: Becomes one when Mister Mxyzptlk rewrites history so she was raised in Hollywood in "Keeping Up With The Kryptonians".
Mister Terrific (Michael Holt)
- Child Prodigy: He was this in college, sharing a room with the much older Martin Stein.
- Insufferable Genius: Very smug and arrogant in his abilities, which drove Martin Stein crazy. It was a coping mechanism for rooming with the very smart Stein. However, he is modest enough to rank himself the third smartest man in the world.
- Smarter Than You Look: He's generally chill and laid back, but can be very resourceful in a fight.
Doctor Fate (Kent Nelson)
- Demoted to Extra: He's only seen once, and doesn't do much.
Vixen (Mari McCabe)
- Adaptational Modesty: Unlike the comics and the DCAU's Justice League counterpart, her breast size (and by extension, her cleavage) has been toned down.
- Animal-Themed Superbeing: She uses a magical totem to activate animal-based abilities.
- Demoted to Extra: She barely appears in the show, only appearing in some fights.
The Atom (Ray Palmer)
- Bound and Gagged: During "Speed Demon", a possessed Batmobile binds and gags Zatanna with the ejection parachute, and locks her in the trunk◊. Zatanna remains captive in the Batmobile trunk until rescued by Batman.
- Deadpan Snarker: She's definitely sarcastic around others.
Stargirl (Courtney Whitmore)
- Adaptational Modesty: In the comics, her outfit bares her midriff, but here it doesn't do that.
- Adaptational Personality Change: She was given a more child-ish and naive personality (of course, it is possible that she is simply younger than usual, which would explain it easily enough).
- A Day in the Limelight: She's one of the most recurring characters in the show.
- Nice Girl: She's very sweet and open hearted.
- Single Woman Seeks Good Man: She has a crush on Firestorm, who is a Nice Guy.
Firestorm (Ronnie Raymond)
- Adaptational Comic Relief: Ronnie Raymond's personality is quite exaggerated in this version.
- A Day in the Limelight: He's one of the most recurring characters in the show.
- Book Dumb: Ronnie isn't the most adept student and doesn't use his transmutation abilities all that much because it requires him to memorize the exact structure of the material he's transmuting. He nearly has a mental breakdown while trying to process Kryptonite's chemical formula.Firestorm: You think I'm Stephen Hawking?!
- Catchphrase: "The heat is on!"
- Comes Great Responsibility: Spoofed after he defeats General Zod by converting the ice of the North Pole into Kryptonite.Firestorm: With great powers comes a great big butt-kicking!
- Crouching Moron, Hidden Badass: He may be a goof ball, but his transmutation and intangibility are extremely powerful, not to mention the fact that he's a walking nuclear reactor.
- Dating Catwoman: He has a bit of a thing for Killer Frost.
- Hidden Depths: Garden Of Evil shows hes pretty good at tactical, on-the-fly planning.
- Nice Guy: Ronnies a bit dim, but hes pretty nice.
Etrigan (Jason Blood)
- Adaptational Badass: He's now able to stand up to Superman and Black Adam-level threats with ease, and is likely the most powerful caster of magic who doesn't have a beard (like Merlin and Shazam's wizard).
- Adaptational Heroism: Played with. While he's still a good guy in the comics, he's a smarmy, cynical, self-centered, chain-smoking, alcoholic con man with a low opinion of superheroes and a habit of pushing people away in the comics. Here, he's a deadpan, wise-cracking sorcerer and paranormal investigator with a much friendlier but still smarmy personality, and he's also a member of the Justice League.
- Anti-Hero: He may be a member of the Justice League, but in "Supernatural Adventures in Babysitting" he doesn't hesitate to pocket the spell book the villain was after instead of returning it to its owner. It's also implied that he did something unsavory to the Brothers Djinn, but we'll never know what since his explanation was hindered by the Accent Exaggeratus spell.
- Expy: Constantine's personality here is highly reminiscent of Harry Dresden.
- Frothy Mugs of Water: It's only obvious in "Trick or Threat," but if you look closely Constantine's chain-smoking has been replaced with chain-lollipop-eating.
- Handwave: In the first episode, his Cockney accent and mannerisms are exaggerated. Batman explains that he was hit by an Accent Exagaratus Spell by a warlock the previous week.
- Kleptomaniac Hero: He's picked up the keys to the House of Mystery and kept the Magdaline Grimoire for himself instead of returning it to its owner.
- Adaptational Personality Change: Swamp Thing is a lot more cheery and upbeat compared to his comics self. Not that he wasn't caring or compassionsite, but he tended to be much more serious and reserved than as he's portrayed here.
- Deadpan Snarker: He is the snarkiest character in the entire series, and makes a good amount of snarky quips.
- Fighting from the Inside: When Poison Ivy brainwashes him, he keeps trying to break free from her control and gives fellow Leaguers tips on how to stop him.
- Hero with Bad Publicity: Subverted. He thinks he has this reputation, but the end of Zombie King shows hes actually quite popular and beloved by the citizens of New Orleans.
- Knight in Sour Armor: Hes quite cynical and snarky, but at the end of the day hes a Nice Guy.
- Nice Guy: Despite his misgivings about humanity, hes always on the front lines to protect people and considers his fellow League members friends.
- Was Once a Man/That Man Is Dead: Implied in Zombie King.
- Deadpan Snarker: He has a sense of sarcasm.
- Fish out of Temporal Water: Was from the good ol' days of the Wild West but after being turned into a Human Popsicle ended up being defrosted in the future.
- Guns Akimbo: Pilfers some dual laser pistols from the JL's cargo in order to properly fight the Alien Trainjackers, he takes a liking to them but they don't last long sadly.
- Human Popsicle: Was out hunting down a criminal in a snowstorm but fell down a crevice, freezing him into a block of ice. He was found by the Justice League and was about to be sent to the Watchtower. But after the vehicle transporting was hijacked, the League was forced to defrost him in order to help Space Cabbie out.
- Seen It All: Isn't too perturbed by the fact that he was defrosted in the future and is currently in a Space Train being hijacked by criminal aliens.
- Adaptational Badass: He's able to help Superman in his chase against Lobo and outwit Mister Mind, one of the smartest villains in the DCU. He even manages to trick Kanto, Darkseid's personal assassin!
- A Day in the Limelight: He's one of the most recurring characters, despite having no super powers and never becoming a member of the Justice League.
- Attention Whore: He's very desperate for attention from a loving audience. Batman even lampshades it when he finds him hidden inside a container:I don't have to be the world's greatest detective to know there was no way you were going to leave a standing ovation.
- Jerk with a Heart of Gold: For all he does to inflate his ego, he isn't hesitant to help Big Barda.
- Large Ham: He's pretty bombastic and over the top.
- Jerk with a Heart of Gold: She may have a temper, but she's also altruistic.
- Non-Standard Character Design: Even given the stylized designs on the show, Barda is drawn with huge, cartoony eyes that blend with her helmet, and a round comic-strip-esque face.
- Violently Protective Girlfriend: In "It'll Take A Miracle!", when one of Darkseid's minions is about to stab Mister Miracle, she angrily knocks him away after saying "That's my boyfriend!"
The Riddler (Edward Nygma)
A reformed supervillain-turned Private Detective.
- Adaptational Heroism: Based on the "Edward Nygma, Private Eye" period of the Riddler's life.
- Bald of Awesome: This Riddler is bald, and a brilliant detective.
- Evil Is Petty: He may be reformed, but he got into a feud with the Joker when he absentmindedly stole Joker's donut. Joker retaliated by stealing his gimmick, and Riddler retaliated by helping the League solve the riddles.
A stupid, but well-meaning clone of Superman who seeks to join the Justice League, oblivious that none of the Justice League like him.
- Abhorrent Admirer: To Wonder Woman.
- Adaptational Heroism: While he's not an outright bad character in the comics, he usually ends up causing more harm than good. Here, Flash corrects Martian Manhunter's assumption that Bizarro is evil, and he actually helps the Justice League defeat Amazo.
- An Ice Person: He has freeze vision.
- Catchphrase: "Booray!"
- Cloudcuckoolander: As is usual for Bizarro. He thinks Space Cabbie is the world's greatest genius for giving him directions he didn't even follow and celebrates losing.
- Gretzky Has the Ball: He plays mini-golf by throwing his club, calls "Five!" instead of "Fore!", doesn't bother to hit any of the holes, swings his club like one would in normal golf, and celebrates a hole in hundreds.
- Hulk Speak: He still has his trademark mix of this and opposite-speak.
- Oddball Doppelgänger: Even putting aside his odd logic and reversed powers, he has a much deeper voice than Superman and wears a reversed S-Shield and Underwear of Power.
- Secondary Color Nemesis: Subverted. The red-and-blue parts of his costume are more purplish than Superman's, but he's not evil by any margin.
- Underwear of Power: Despite Superman himself not having those thanks to having a more New 52-inspired design, Bizarro keeps his. He can get away with it because, well....he's weird that way.
The Brothers Djinn
- Adaptational Badass: Ghast is left out of the original lineup, but when he does appear in a later episode, it's as a full-on kaiju-sized Eldritch Abomination.
- Ascended Extra: Calythos, Uthool, and Nyorlath are seen as actual characters here for the first time in anything ever. In the comics, The Green Bell of Uthool, the Silver Wheel of Nyorlath, and the Red Jar of Calythos are the artifacts needed to summon the Demons Three (Abnegazar, Rath, and Ghast, two of which appear in part four. Ghast would turn up later down the line.) but just who or what the names Calythos, Uthool, and Nyorlath mean has yet to come up.
- Demonic Possession: Uthool's ability. He's able to boost the strength of his host to the degree that he becomes as strong as Superman.
- Power Copying: Calythos' ability, further enhanced by taking over Superman villain the Parasite. Unfortunately (for him; fortunately for the world) he, like Parasite, he takes on the weaknesses too.
- Starter Villain: They're a lot more powerful than most starter villains, to the point that you'd have to go all the way up to Darkseid-class heavy hitters to come up with villains who outrank the Djinn at full strength. In fact, the use of such powerful foes right from the get-go is quite surprising given the Lighter and Softer nature of the series, and it makes almost every other villain seem weaker by comparison. However, they get the cast onscreen and working together, demolish the Hall of Justice in a big battle so the Watchtower that will be the base for the rest of the series will be created, and never show up again after being banished from this reality by John Constantine.
- What Happened to the Mouse?: Done deliberately; Constantine was suffering from an "Accent Exaggeratus" spell, he was pretty unintelligible when saying just where he sent the Djinn. As such, we will never know their final fate.
- Archnemesis Dad: He acts as an adoptive version to Mister Miracle in "It'll Take A Miracle!"
- The Comically Serious: Darkseid remains completely within character even when doing things like riding a taxi and giving Space Cabbie a coin with his face on it.
- Evil Sounds Deep: As in basically all of his other televised experiences, he has a deep, menacing voice.
- Not So Stoic: He looks visibly shocked when Mister Miracle manages to steal his Mother Box and is preparing to boom-tube him away.
- Deadpan Snarker: When Kalibak asks if Sid Sharp (whom the Parademons have kidnapped thinking he's Superman) isn't the Man of Steel, she quips "This little fish isn't even the man of oatmeal."
- Evil Old Folks: She's very old and works for Darkseid.
- Paper-Thin Disguise: When she tags along on Booster Gold's tour of the Watchtower, she doesn't bother disguising herself beyond a pair of sunglasses, which she herself lampshades.
- Dirty Coward: For all his bloviating, Steppenwolf isn't interested in a fight unless he has an enormous advantage.
- Egomaniac Hunter: Steppenwolf abducts Superman to play The Most Dangerous Game and prove his superiority.
- Wolverine Publicity: Steppenwolf's appearance early on in Justice League Action served to acquaint viewers with his character before he showed up in Justice League (2017). In previous non-comic media, most of Darkseid's supporting cast have only been Easter Eggs.
- Adaptational Comic Relief: While still fairly dangerous, the series significantly plays up the goofy prankster aspect of the character, to the point that his reason for stealing Riddler's shtick is because Riddler ate his donut.
- Evil Has a Bad Sense of Humor: Previous incarnations of the Joker were Actually Pretty Funny in a Black Comedy sort of way. In "Galaxy Jest," he gets an actual chance to perform comedy for an audience, and can't come up with a single joke less than forty years old.
- Reused Character Design: His look is, barring some color modifications, very similar to his DC Animated Universe incarnation.
- Villains Out Shopping: He breaks Luthor out of prison and takes him out on a holiday, though the latter isn't remotely pleased.
Harley Quinn (Harleen Quinzel)
Black Adam (Teth-Adam)
Trickster (James Jesse)
Killer Frost (Caitlin Snow)
- Anti-Villain: Is ultimately just a fangirl proven Eviler Than Thou by Mister Freeze, and so she remains sympathetic.
- Ascended Fangirl: Was a huge fan of Mister Freeze and was honored to work with him. This turned out to be an awful idea when Freeze ends up using her as a living battery, forcing her to help take him down.
- Composite Character: Is visibly Caitlin Snow, but much like the CW's Caitlin takes Crystal Frost's schtick of being into Firestorm (though, like the CW, Ronnie as apposed to Stein).
- Dating Catwoman: "Dating" may be taking it far, but she does seem to reciprocate Firestorm's feelings.
- Enemy Mine: Helps Firestorm fight Mister Freeze when their partnership stops working out.
- Hazy Feel Turn: She may or may not have switched sides at the end of her first episode, but either way she decks Firestorm in the eye and runs.
- Adaptational Badass: While still using Hulk Speak, he is actually a crafty and patient planner, along with having a knowledge of the occult to back up his immense strength.
- Adaptational Intelligence: He's typically been shown as a Dumb Muscle henchman for most of the more brilliant villains, but he was able to make a really good plan in "Zombie King".
Calculator (Noah Kuttler)
- Adaptational Badass: He managed to split Firestorm back into Ronnie Raymond and Martin Stein. For bonus points, the Calculator is usually an Ineffectual Sympathetic Villain when in costume and only ever succeeds as a Knowledge Broker, but this version has no problems busting out a costume and going after a superhero directly.
- Composite Character: His design (a black full body suit with tron lines), the fact that he fights Firestorm and managing to separate Ronnie Raymond and Martin Stein, makes him a composite of the hero's arch nemesis Multiplex. He also performs a Doppelgänger Spin using holograms which seems to be a Mythology Gag to Multiplex's Self-Duplication abilitiy.
- Expy: He's basically Multiplex but without the Self-Duplication.
- Psychopathic Manchild
- Tron Lines: Has this on his costume.
- Adaptational Comic Relief: This may be the first version of Lex Luthor since the Gene Hackman real estate mogul version to have this much of a sense of humor.
- Adaptational Personality Change: He's also a much more hands-on villain this time, thanks to a Powered Armor that turns him into an evil Iron Man.
- Arch-Enemy: As always, to Superman. Most episodes where he's the villain usually have him trying to defeat the Man of Steel.
- Charlie Brown from Outta Town: Pulls this off as the super-powered villain "Repulse."
- Chronic Backstabbing Disorder: He's teamed up with Circe, Chronos, and the Joker, and betrayed all of them (though in his defense, the latter did drag him into a partnership without his consent).
- Deadpan Snarker: Whenever he teams up with the Joker or Chronos.
- Evil Is Petty: In "Race Against Crime", he betrays Chronos because of his annoying voice.
- Insufferable Genius: Extremely confident in his intelligence, to the point he makes Mr. Terrific look modest by comparison.
- Skewed Priorities: He likes having hair more than he likes the powers of Zeus.
- Adaptational Villainy: Lobo's usually an Anti-Hero at best and HeelFace Revolving Door at his worst. This version is consistently portrayed as an antagonist.
- Adaptational Wimp: While the DCAU's Lobo is quite good at what he does, if not the brightest bulb in the box, this version of Lobo rarely if ever actually accomplishes his tasks, whether killing Mister Mind, holding onto a stolen Red Lantern ring, or collecting bounties on Flash and Superman
- Badass Biker: As always, rides his trusty space hog
- Expy: Lobo and Flash's roles in one episode are clearly taken from, and an homage to, Wile E Coyoteandthe Road Runner
- Fantastic Racism: He doesn't think much of Thanagarians, calling Hawkman a "chicken"
- Voiced by: Oliver Vaquer
- Cute Is Evil: Is called "cute" for his small size in his bio, and is certainly cartoonier than his other iterations. However, this does nothing to undermine his cunning.
- From a Single Cell: Being a worm, he is able to regenerate as long as a portion of him remains intact, as seen in "Follow That Space Cab!".
- Talking Lightbulb: His radio transmitter glows green when they translate his brainwaves in this iteration.
- Adaptational Attractiveness: Deliberately invoked. His first appearance involves summoning a creature of destruction to attack this plane of existence which restores his youth.
- Berserk Button: You can destroy his other evil minions, but leave the one who's carrying his snacks alone.
- Deadpan Snarker: By far the snarkiest version of Faust, to the point that half is fight with Zatanna is simply him hurling insults at her"What have we learned? My kung-fu is better than your kung-fu!"
- Laughably Evil: He rides around on a segway. That is all.
Toyman (Hiro Okamura)
- Adaptational Villainy: The Hiro Okamura Toyman was an ally of Superman in the comics. Here he's just as much of a villain as previous incarnations.
- Composite Character: He's Hiro Okamura's version of Toyman, but is more evil much like his mainstream counterpart.
- Psychopathic Manchild: Superman even calls him "maturity challenged."
- Rogues Gallery Transplant: Toyman is mostly a Superman villain, though here he's treated as one for Cyborg. However, Superman does refer to him as an old nemesis.
- Marionette Master
- Mythology Gag: One of his robots has the same color scheme as the Jack Nimball version of Toyman.
- Wicked Toymaker
Parasite (Rudy Jones)
- Adaptational Ugliness: While in the comics Parasite wasnt particularly handsome, this Parasite is laden with Body Horror and barely resembles a man. Only his post-Crisis self comes anywhere close to being as monstrous as this version.
- Body Horror: He barely resembles a man, and can sprout tentacles to absorb peoples powers.
Red Velvet (Margo Montgomery)
Booster Gold's fiancee from his time. He left her at the altar, which lead to her becoming a supervillainess, fueled by revenge.
- Canon Foreigner: She was made for the show.
- Hero Killer: The Watchtower crashes with several members of the League in the future because of her.
- Spicy Latina: She's implied to be a Latina because of her tanned skin and Dominican voice actress. Booster outright says Margo has "that fiery blood."
- Woman Scorned: The League assumes she's after Booster because he left her at the altar and she had no idea that he left because he wanted to make enough money to support them in their marriage. Well... he did come back... but he was a horrible husband, and that's why she became evil.
Two-Face (Harvey Dent)
- Adaptational Comic Relief: This is the most humorous version of Two-Face, thanks to his personalities getting into arguments repeatedly.
- And I Must Scream: Harvey is able to see all the illegal activities Two-Face partakes in, but is unable to do anything more than protest.
- Guttural Growler: Two-Face plays it straight, but averted with Harvey.
- Split Personality: As per usual. However, the Harvey personality is shown to be able to be able to briefly take over, while most media depicts the evil personality as having total control.
- Two-Faced: Duh.
Deadshot (Floyd Lawton)
One of the world's greatest assassins, who offers his services to whoever can afford him.
- Butt-Monkey: He's frightened by Superman and Batman's reversed Good Cop/Bad Cop routine and is scared into spilling without the Lasso of Truth just by seeing its effects on Booster.
- Go-Karting with Bowser: Tries to join Booster and Wonder Woman in getting ice cream. Wonder Woman has none of it.
- The Stoic: Nothing breaks his cool demeanor.
The captain of space pirates.
Mr. Freeze (Victor Fries)
- Kick the Dog: Imprisoning Killer Frost to use as a power source was a dick move, especially since she was a huge fan of him and had been completely loyal and helpful.
Space Cabbie's GPS app, who seems to have a mind of its own...
- Canon Character All Along: Although it is never explicitly confirmed, it is obvious by her green color scheme, her voice, her familiarity with Hal, being an amnesiac AI, and that she feels like she should be looking for something or someone (likely Razer) that she is Aya after the events of Green Lantern: The Animated Series, or at least from a Broad Strokes of it.
- Determinator: After her encounter with Hal, she is inspired by his unwillingness to give up to leave Space Cabbie to go on a journey of self-discovery.
- Foreshadowing: Space Cabbie's GPS is glows green and shares her voice actress with Aya... hmm...
- Fully Absorbed Finale: Aya appearently survived the series finale of Green Lantern: TAS, in which she created a virus which deleted all copies of herself.
- Have We Met?: After Hal leaves, Aya confides to Space Cabbie that something felt familiar about him.
- I Will Find You: Before she leaves Space Cabbie, she says that she feels like she should be looking for something... or someone.
- Identity Amnesia: She's not a navigational app as Space Cabbie may be mistaken to believe, but a disembodied artificial intelligence with no memory of her origin.
- The Lost Lenore: Her encounter with Hal makes her feel that she must search for something... or someone.
- Missed Him by That Much: Neither Hal or Aya recognized each other while Space Cabbie was giving Hal a ride.
- Walking Spoiler: It's hard to talk about "Barehanded" without talking about her last scene.
- Wham Line: At the end of "Barehanded", what she has to say indirectly reveals her true identity and puts Justice League Action and Green Lantern: The Animated Series into a new perspective...GPS: That passenger [Hal]. There was something familiar about him.
Space Cabbie: The Green Lantern? That's a strange thing for a navigational app to say, GPS.
GPS: I'm not a navigational app. I am a disembodied artificial intelligence with no memory of my origin.
Space Cabbie: That's okay! We make a great team! You can stay here in my cab forever!
GPS: Negative. I feel compelled to search for something... or someone. That Green Lantern did not lose hope, and neither will I. [leaves]
Space Cabbie: [beat] ...Well, that was weird.