The character sheet for the animated series ''WesternAnimation/LegionOfSuperHeroes''.
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!Superman
[[quoteright:370:http://static.tvtropes.org/pmwiki/pub/images/f3e93eaa3c79ea04d1bbf3d46af0742b.jpg]]
->Voiced by: Creator/YuriLowenthal

* BadassCape: Would he really be Superman without the iconic red cape?
* ClarkKenting: TropeNamer. For this version of the story, both Superman and Clark are the "real person" wearing different clothes, neither being a disguise. The issue of a disguise persona is never dealt with in the show, which is [[JustifiedTrope justified]] because in the 31st century, people are only familiar to Superman as a legendary hero and there is no one to recognize him as Clark.
* ChestInsignia: Wouldn't be Superman without the S on his chest.
* DisneyDeath: Gets one in the season two finale "Dark Victory" when he supposedly dies after exposure to a Kryptonite crown, but later recovers after it turns out that he was merely put in a death-like state to recover from the Kryptonite poisoning.
* ExtremityExtremist: Whenever he fights, Superman almost exclusively uses his fists.
* FishOutOfWater: Both as a [[HumanAliens Kryptonian]] and as someone from the past.
* FlyingBrick: He can fly and is very formidable.
* [[SheIsAllGrownUp He's All Grown Up]]: In season two, WOW.
-->'''Superman''': "Who you calling skinny?"
* InnocentBlueEyes: Of the "heroic and idealistic" variety.
* TheLeader: He is not officially leader but the Legion defer to his judgment, if only out of respect to his heroic legacy.
* NaiveNewcomer: When he's first introduced but he gets to grips with it pretty quickly.
* NiceGuy: Hands down the nicest character in the show. He even attempts to convince [[JerkWithAHeartOfGold Superman X]] about the values of [[ThePowerOfFriendship friendship]] and [[TrueCompanions teamwork]].
* OutOfFocus: In the second season, more attention is given to his successor Superman X. As a result, he appears much less frequently.
* PrimaryColorChampion: Naturally. His costume has red, blue, and yellow and he's a very powerful hero.
* RedOniBlueOni: The Blue to Superman X's Red.
* RookieRedRanger: He is recruited by the Legion to help them take down the Fatal Five when they overpowered them.
* SuperpowerLottery: He wouldn't be Superman without this trope.

!Lightning Lad
->Voiced by: Andy Milder

* ArtificialArm: From "Chained Lightning" onwards, he gets a robotic arm after his original one got blasted off by Imperiex.
* BadassBeard: In season two, he has a beard.
* ButtMonkey: He ''really'' hates Legion try-outs, usually because he winds up on the receiving end of someone's demonstration.
** In the spin-off comic of the cartoon, during Infectious Lass's try-out, he wound up with a form of lava acne and got stuck with Bouncing Boy's power (and physique). What sucked worse is that, the virus that switched his power with BB's lasts longer on people with greater mass.
* CainAndAbel: The Abel to Mekt's Cain.
* CynicismCatalyst: The death of his sister Ayla during the attack that granted him and his older brother Mekt their powers pushes them into their guilt-ridden CainAndAbel complex, along with Garth's cynical attitude and Mekt's path into villainy. [[spoiler: Subverted in that she didn't die at all and was eventually restored to a physical form]].
* FieryRedhead: He has red hair and is often short-tempered.
* GoodParents: He was seen embracing them after the storm that devastated Winath, happily embracing their children in the photo before he and his siblings got their abilities and him bringing Ayla home to see their parents.
* GoodScarsEvilScars: Lightning Lad has a lightning bolt-shaped scar over one of his eyes.
* [[SheIsAllGrownUp He's All Grown Up]]: Has a shirtless scene in ''Chained Lightning'' to demonstrate this. Much to the joy of Legion fangirls everywhere.
* JerkWithAHeartOfGold: He's arrogant and raucous, but he still fights for what is right.
* TheLancer: Becomes the second-in-command when Superman joins the team.
* LockedIntoStrangeness: His scar and eyes are a result of the Lightning Beasts shocking him and his siblings that granted them their abilities.
* MajorInjuryUnderReaction: When he comes to and realizes his arm has been replaced with a prosthetic, his response is to say ''"Sweet"'' in an impressed tone of voice. Somewhat justified due to being informed that his new arm is equipped with powerful weaponry.
* RealMenWearPink: Has surprisingly good bedside manner, as demonstrated by him trying to get Matter-Eater Lad to eat so he would recover quickly in the hospital. And then of course there's the fact that he loves his little, [[spoiler: formerly twin]] sister dearly.
* ShockAndAwe: His power is firing bolts of electricity.
* TeethClenchedTeamwork: With Dream Girl in season two. His reason for doing so is that she used to be a con artist fortune teller called Madame Mysterious, but the real reason behind his dislike is [[spoiler: she told his parents that they would find his sister Ayla on another planet and it never happened, which devastated the two.]] Though their relationship has softened by the end of Nura's spotlight episode.
* TookALevelInKindness: While still a bit of a jerk in season two, he'd softened a little. Not majorly, but considerably.

!Saturn Girl
->Voiced by: Creator/KariWahlgren

* ActionGirl: She gets to join in the action frequently as one of the team's core members.
* BigOlEyebrows: Her eyebrows are very prominent.
%%* CaptainObvious
%%* TheChick
* TheHeart: She's quite good at handling people. She did show a great deal of compassion for Timber Wolf before his true identity was revealed.
* MasterOfIllusion: She can use her telepathic abilities to trick people into seeing things that aren't really there.
* MindControlEyes: Her eye's glow whenever she uses her physic abilities.
* MindOverManners: Lighting Lad once stated that she could read a persons thoughts even when she's unconscious. Since she's unconscious she can't stop herself, and will sometimes pick up on things she shouldn't.
* PsychicPowers: Her main power is telepathy.
* PurpleEyes
* RapunzelHair: Her hair is long.
* TechnicolorEyes: She has violet eyes.
* [[TelepathicSpacemen Telepathic Spacegirl]]: She is an alien and she has mental powers.

!Brainiac 5
->Voiced by: Adam Wylie

* AdorablyPrecociousChild: An adolescent who acts more mature than his teammates.
* AmbiguouslyGay: His devotion to Superman sometimes comes off as more than just mere admiration.
* [[spoiler: BrainwashedAndCrazy: When Brainiac 1.0 takes control of him.]]
* DoAnythingRobot: He has a robotic body and he can transform his arms into any tool or weapon needed.
* [[GreenSkinnedSpaceBabe Green Skinned Space Guy]]: He's not exactly [[MsFanservice Mr. Fanservice]], but that hasn't stopped his horde of fangirls.
* GeniusBruiser The genius part is blatantly obvious, the bruiser part comes in when he turns into his "battle mode"
** Read: 12 foot tall mecha that has enough dakka to make someone supposedly "armed to the teeth" and member of the bad guys who took the whole legion to run like a little girl
* IDidWhatIHadToDo: Less of a single occurrence and more of a defining motivational trait - Brainiac 5 often makes the tough, pragmatic and/or rational decisions, and willing to pay high costs (including sacrificing himself, or on rare occasions others) if he feels it needs to be done or the alternative is something much worse. This extends to everything from saving the day to preserving the timeline, and becomes particularly obvious in "Message In A Bottle" and other episodes dealing with Brainy ensuring that Superman doesn't learn too much about his past.
** Pointed out by [[spoiler: the original Brainiac, who uses this part of Brainiac 5 to create a connection between himself and Brainy. As his resistance breaks down, Brainy slowly starts to believe that his tendency for this makes him NotSoDifferent than Brainiac 1... and that's all 1.0 needed.]]
* InSeriesNickname: His teammates frequently address him as "Brainy".
* InsufferableGenius: He comes off as this to the rest of the Legion at times when his TechnoBabble becomes tiresome
* LegacyCharacter: He is a descendant of the original Brainiac, one of Superman's enemies.
* LockedIntoStrangeness: In an interesting reversal he was an android at the start of the series but at the end he became human (albeit with green skin and white circles on his forehead) after defeating Brainiac in his mind.
* LosingYourHead: For most of the episode "Brain Drain", a teleportation mishap results in his head being separated from his body.
* MechanicalLifeform: He is an android, but also acts human.
* OutOfCharacterMoment: His entire character after the first few minutes of "Brain Drain" due to a malfunction. HilarityEnsues.
* PinocchioSyndrome: Per WordOfGod.
* PragmaticHero: "Phantoms" reveals he has a piece of kryptonite around, which would be sensible in case Superman went rogue. He also justifies [[spoiler:erasing Superman's memory]] at the end of "Message in a Bottle" because he doesn't want to risk history being changed by Superman's knowledge of the future.
* PurpleEyes: His eyes are purple.
* RobotBuddy: He is an android and gets along well with the other Legionnaires.
* TheSmartGuy: He is the brains of the team.
* TheSpock: Focuses on logic to the point that he stubbornly tries to deny the existence of magic even while Zyx uses his reality-altering powers on him.
* SpockSpeak: Part of his intellectual personality is using technical terms while speaking in a serious tone of voice.
* TelescopingRobot: He can extend his neck and limbs.
* WellIntentionedExtremist: Comes off as this when he is [[spoiler:controlled by Brainiac 1.0]] in "Dark Victory", claiming that with his order he can end suffering and prevent everything from falling into chaos.

!Bouncing Boy
->Voiced by: Michael Cornacchia

* {{Acrofatic}}: He's quite versatile for someone of his girth.
* BigEater: The first episode alone makes it clear that he loves food. For instance, he's quite thrilled to discover hot dogs and cotton candy.
* BigFun: He's overweight and all about having a good time.
* TheBigGuy: He quite often uses his bouncing ability to break through barriers and pummel his enemies.
* TheChainsOfCommanding: Feels them when he gets put in charge of the Legion.
* DarkHorseVictory: Wins the Legion Leader Election in "Chain Lightning" despite Cosmic Boy and Lightning Lad being the frontrunners due to leading the Legion in saving all of Winath.
* GenreSavvy: Comes with being an ancient horror movie fanboy.
* PluckyComicRelief: He serves as the jokester of the group.
* HyperDestructiveBouncingBall: He IS one!
* MissionControl: When he is piloting and the others are in action. Exceptional work at this briefly gets him elected leader of the entire Legion.
* ShipTease: With Triplicate Girl.
* WhatKindOfLamePowerIsHeartAnyway: He was rejected from the Legion four times before finally being let in.
** HeartIsAnAwesomePower: He was let in eventually and is a useful member of the team by the time of the show.

!Phantom Girl
[[quoteright:283:http://static.tvtropes.org/pmwiki/pub/images/phantom_girl.jpg]]
%%[[caption-width-right:283:some caption text]]
->Voiced by: Creator/HeatherHoganWatson

* ActionGirl: One of the team's core members, she's often involved in the action.
* DeadpanSnarker
* EeriePaleSkinnedBrunette: She's much paler than the other girls in the show, and the design of her costume and face suggest a skull.
* GrayEyes: Just like her mother's.
* TheHeart: Served this to Lightning Lad and Timber Wolf when both were dangerously close to becoming murderers.
* [[IntangibleMan Intangible Girl]]: Her power is phasing through solid objects.
* LittleMissSnarker
* ScrewTheRulesImDoingWhatsRight: When she aids [[spoiler: Timber Wolf]] despite the Legion's laws.
* ShipTease: With [[BeastAndBeauty Timber Wolf]]
* SpoiledSweet: Her mom's President of the galaxy, in case you didn't know.
* ThisLooksLikeAJobForAquaman: [[spoiler: She's the most powerful Legionnaire in the Phantom zone.]]

!Timber Wolf
->Voiced by: Shawn Harrison

* BrainwashedAndCrazy: [[spoiler: [[SarcasmMode Daddy dearest]] used his nanites to turn him into this, it was seeing Phantom Girl's unconscious body that snapped him out of it]]
* CallingTheOldManOut: Gives his pop a few of these
* ClearMyName: [[spoiler: Was accused of killing [[SelfMadeOrphan his father]] and the Legion and Science Police hunt him down, as it turns out he was the real killer but the victim was his father's clone]]
* DeadpanSnarker
* GuineaPigFamily: See [[AbusiveParents Abusive Parents]]
* GutturalGrowler: ''Especially'' when he's in his bestial form.
* HiddenDepths: He likes to cook.
* LightningBruiser: In S2 he's built like a tank, and although he's not as fast as speedsters or even Superman, he still moves in a blur.
* LockedIntoStrangeness: In pictures it was shown he was a normal human boy until his father tampered with his DNA too much. After he was restored from his werewolf-like state he maintained the cat-like eyes, fur, claws, fangs and pointy ears from his feral form.
* MisunderstoodLonerWithAHeartOfGold: Was originally treated like a mindless animal (his father tricking the Legion so they can capture him) until Saturn Girl uncovered the truth
* OurWerewolvesAreDifferent: He became a wolf-like humanoid because his father experimented on him.
* RealMenWearPink: See HiddenDepths
* ResistTheBeast: In "Cry Wolf" he does experience this trope and trying hard not to revert into his [[SuperPoweredEvilSide bestial form]] [[spoiler: in one such instance he was struggling with his monster form when Phantom Girl tries to coax him back to normal...until the [[InterruptedCooldownHug Science Police]] came in and attacked him causing him to run and fly to Rawl so that he wouldn't be a danger to anyone else.]]
* ShipTease: With [[BeastAndBeauty Phantom Girl]].
* SkunkStripe: Like his father, he has a white streak in his hair.
* SlasherSmile: Does this in Cry Wolf where [[spoiler: the nanites have taken control over him]]
* SixthRanger: Joins the team by the end of his first appearance.
* TheStoic: Often has a serious demeanor.
* SupernaturalGoldEyes: The lupine sort.
* VomitDiscretionShot: In the spin-off comic of the cartoon Timber Wolf gets motion sickness on the trip back from Rawl, fortunately Superman manages to get him off the ship before he could show the Legion what he had for lunch.
* WolfMan: He's a humanoid wolf.
* YouWouldntLikeMeWhenImAngry: When angered, he becomes larger, more monstrous, and more aggressive.

!Triplicate Girl[=/=][[spoiler:Duo Damsel]]
->Voiced by: Creator/KariWahlgren

* ActionGirl: She often appears on the scene to lend a hand during the team's battles.
* BareYourMidriff: She wears this for the first series then only partially for the second series.
* DespairEventHorizon: When [[spoiler: one of the duplicates is seemingly killed]].
* GenkiGirl: The most peppy and excitable of the female Legion members.
* LiteralSplitPersonality: Each of the three duplicates she splits into are semi-individuals with slight differences in personality to the point that they're both one person and yet also like very close sisters.
* MagicSkirt: In spite of how short her skirt is, it never changes position.
* MesACrowd: When under the influence of magic her duplication power spirals out of control creating dozen of copies that continue to endlessly fill the Legion's spacecraft.
* PeekABangs: Part of her hair covers one of her eyes.
* StatusQuoIsGod: After being [[spoiler:minus a third of her]] for most of the second season, the series' end has her [[spoiler:reunited with her restored third self.]]
* YouGottaHaveBlueHair: Her individual triplicate selves have white, orange, and purple hair. When she's whole, her hair has all three colors.
* ZettaiRyouiki: In keeping with her GenkiGirl personality, wears Rank A as part of her uniform.

!Chameleon Boy
-> Voiced by: Alexander Polinsky

* {{Adorkable}}: Very charming because of how young and naive he is.
* DeadpanSnarker: Most notably in regards to Karate Kid's optimism.
* HeroWorshipper: In 'Who Am I' it was shown he's idolised Superman for years before he even joined the Legion.
* InSeriesNickname: He is often addressed as Cham.
* {{Keet}}: He is very energetic.
* KidAppealCharacter: He's mainly introduced in the second season because the other Legionnaires have become serious and more mature after the TimeSkip.
* MagicPants: His clothes disappear whenever he shapeshifts, but he somehow still has his clothes whenever he returns to his normal form.
* MemoryGambit: Was a part of this for Brainiac 5's plan of infiltrating Imperiex's forces by impersonating Persuader in "Who Am I?". In addition to assuming Persuader's form, Chameleon Boy had his mind altered so that he believed he really was Persuader. By the end of the episode, he's returned to normal and has his real memories restored.
* PluckyComicRelief: Good-natured and fond of puns.
* VoluntaryShapeshifting: His power is changing himself into any living thing.

!Superman X[=/=]Kell-El
->Voiced by: Creator/YuriLowenthal

* AntiHeroSubstitute: He's more antisocial than the original Superman and doesn't have any qualms with using excessive force.
** {{Adorkable}}: His upbringing changed a lot but he retains a lot of Superman's personality traits and has just as awkward as a time fitting in with society.
* CloningBlues: He is cloned from Superman's DNA and is frustrated that the Legion find the original Superman superior to him.
* CompositeCharacter: Of Kon-El (clone of Superman) and Superman from the 853rd century (A successor of the Man of Steel from even further in the future). Having Superman's powers but an immunity to Kryptonite also makes him similar to Mon-El/Lar Gand.
* GeneticEngineeringIsTheNewNuke: Created specifically to turn the tide against Imperiex in the 41st Century, he's the result of Superman's DNA being mixed with ''Kryptonite'' and as such is immune to the green rocks effects. It also has the added side effect of granting him different powers.
* GoodIsNotNice: His less than friendly demeanor has even led to the original Superman implicitly comparing him to Batman.
* GreenEyes: His eyes are green, presumably because of his DNA being combined with Kryptonite.
* LaserGuidedTykebomb: He was created to stop Imperiex.
* TheOnlyOneAllowedToDefeatYou: He doesn't want anyone else to defeat Imperiex.
* RedOniBlueOni: The Red to Superman's Blue.

!Cosmic Boy
->Voiced by: Creator/WilWheaton

%%* AlwaysSomeoneBetter
* TheCaptain: He is the de facto leader of the Legion of Super Heroes.
* ExtraOredinary: He can manipulate metal.
* GoodIsNotNice: While he's the leader of the Legion of Super Heroes, he's kind of a dick.
* {{Jerkass}}: He is very rude towards the inexperienced Chameleon Boy and also turns away Karate Kid just for lacking powers.
* UnresolvedSexualTension: With Saturn Girl. In "Chain of Command", he tried to protect her from harm's way, but she told him he can take care of herself and leaves before he can apologize. In the episode "In the Beginning", he's upset with Saturn Girl for always taking Lightning Lad's side.
* WhatTheHellHero: Lightning Lad calls him out for not even having the time to visit Saturn Girl while she's in a temporary coma.

!Shrinking Violet
->Voiced by: Creator/KariWahlgren

* AnnoyingLaugh: She's a snorter
* GeniusBruiser: [[ComicBook/AntMan This type]] [[ComicBook/TheAtom tends to be.]] That she is able to keep Braniac 5 in check is probably why her teammates tolerate the other tropes listed here.
* ShipTease: She seems to spend a lot of time with Braniac 5.
* ShrinkingViolet: Averted in spite of her name, visually she gets smaller and wears dark purple but she does not have this personality at all.
* TheNapoleon: She's very sensitive about her height.
* WhatKindOfLamePowerIsHeartAnyway: Though she thinks shrinking is the best power.
* RavenHairIvorySkin: Unlike the comic version

!The Fatal Five

* FiveBadBand
** BigBad: Emerald Empress is the leader of the group.
** TheDragon: Persuader
** EvilGenius: Tharok is said to be as smart as Brainiac 5.
** TheBrute: Validus. Later becomes TheDragon to Imperiex, yet is TheBrute while in the Fatal Five.
** DarkChick: Mano

!Lightning Speed Vanguard/Legion of Supervillains

* FunWithAcronyms: although doesn't spell out a word, the initials are the same in the old and later name of the team: LSV.
* HeelFaceTurn: [[spoiler: Although they weren't seen after their "turns", Lightning Lord and Ron-Karr.]]
* JerkJock: Mekt "Lightning Lord" Ranzz in "Champions", before joining the LSV.
* JumpingOffTheSlipperySlope: The Light Speed Vanguard at first seem Cooler And More Effective Heroes, then Kinda Selfish Mercenary Heroes, then Ruthless Protection Racket.
* LockedIntoStrangeness: Like his brother the Lightning Beasts shocked him and his eyes and hair changed.
* MoralityPet: [[spoiler:for Mekt in "Chained Lightning". Many years ago, dead little sister. Then, NotQuiteDead (which puts EvenEvilHasLovedOnes back into play), followed by UnexplainedRecovery. As he directly contributes to Ayla's restoration, he surrenders to prison without a fight.]]
* PsychoRangers: Each member is a counterpart for a Legionnaire.
** Esper is a telepath like Saturn Girl
** Hunter and Timber Wolf are both bestial metahumans.
** Lightning Lord and Lightning Lad both have the ability to fire bolts of electricity.
** Ron-Karr and Wave - Bouncing Boy and Triplicate Girl (as the team's ship crew)
** Tyr claims to have powers matching Superman's.
* TomatoInTheMirror: Ron-Karr goes through this in "Who Am I?" [[spoiler:when he is revealed to be impersonating Superman to infiltrate the Legion for Imperiex.]]

!Imperiex
-> Voiced by: Creator/PhilMorris

* BigBad: He is the main villain of the second season.
* ConquerorFromTheFuture: He comes to the 31st century from the 41st century.
* EvilSoundsDeep: He speaks in a deep and menacing voice.
* GenericDoomsdayVillain: Doesn't have any personality aside from wanting to conquer everything.
* HijackedByGanon: [[spoiler:Ultimately, Imperiex is not the one the Legion must deal with in the end as he gets killed by the original Brainiac.]]
* HoistByHisOwnPetard: [[spoiler:He planned on Brainiac 5 being taken over by his predecessor to form an alliance, but then [[HijackedByGanon gets usurped and killed]] due to said attempt at an alliance.]]
* InNameOnly: Comic book Imperiex was a present-day EnergyBeing in a suit of armor, so giant that most of the time you were FightingAShadow; Animated Imperiex is a human-sized alien cyborg from 41st century.
* KnightOfCerebus: His introduction significantly darkens the series, being a far more technologically advanced, ruthless overlord than what the Legion typically deal with.

!Alexis Luthor
-> Voiced by: Creator/TaraStrong

* BaldOfEvil: Near the end of her debut, she gets caught in an explosion that makes her lose her hair. However, she is shown to have her hair growing back when she's later seen in jail.
* TheCameo: Makes an appearance in "Sundown" as an inmate of Takron Galtos.
* CanonImmigrant: Alexis was originally created for this show, but then she was officially introduced into the Franchise/DCUniverse in Creator/GrantMorrison's ''Comicbook/TheMultiversity'' series.
* DesperatelyLookingForAPurposeInLife: Claims so. By the end of her episode, she decides that her purpose is to get even with the Legion.
* EvilRedhead: She has red hair and is very much like her ancestor Lex.
* {{Fiction 500}}: She is rich enough to own a planet, or so Saturn Girl claims.
* JumpingOffTheSlipperySlope: Crosses into straight-up villainy when she tries to kill Superman over rejecting her.
* LonelyRichKid: She claims this is the case, but her attitude indicates that her lack of friends is justified.
* MiniMecha: She fights in a mecha near the end of her episode.
* NeverMyFault: It's a Luthor thing.
* RichBitch: She thinks Superman spending time with her is more important than him helping the Legion with their missions.
* {{Yandere}}: She does not take Superman rejecting her well.

!Dr. Londo
-> Voiced by: Harry Lennix (Season 1), Dorian Harewood (Season 2)

* [[AbusiveParents Abusive Dad]]: If ''experimenting on your own son'' isn't abusive, then nothing is.
* ActuallyADoombot: A variation occurs in "Cry Wolf" when [[spoiler: it turns out that the Dr. Londo the Legion and Timber Wolf confront at the end of the episode is just a clone and that the real Dr. Londo has long fled the area.]]
* AdaptationalVillainy: In the original comic series, he was only used for the purpose of flashbacks with little if any character development but when the animated series came along he may be as bad of a parent as [[WesternAnimation/AvatarTheLastAirbender Ozai]].
* ArchnemesisDad: To Timber Wolf, if he's got an episode to himself expect Dr. Londo to be the main villain
* EvilutionaryBiologist: He mutated his son and several animals in an attempt to breed formidable soldiers.
* EvilCounterpart: To President Winema Wazzo believe it or not:
** Both have titles in front of their names, related to their professions and are referred to as such (President Wazzo and Dr. Londo)
** They are single parents to their children (who're the same gender as their respective parents)
** Their children are in the Legion of Superheroes and are close friends.
** Their children resemble them in some way (for example, take away the werewolfism and his son has his facial features and hair. In a few glimpses of his son's human form he does look like a younger version of his father)
** They both meddle in their children's lives. The key difference is Winema is well-meaning and ultimately wants what's best for her daughter while Londo only is interested with what he wants and doesn't care what happens to his son, he just wants his weapon/general.
* GuineaPigFamily: He experimented on his own son.
* JumpingOffTheSlipperySlope: At first appears as a lone, grieving scientist who's lost everything to the creature in the forest. As it turns out his son isn't dead but is the creature Londo told the Legion about. He also attempts to kill/capture the Legion and take his son back by force using his animal test subjects.
* KarmaHoudini: One of the ''very'' few villains of the series not to be either imprisoned on Takron Galtos, sent to the Phantom Zone or killed. His second and final appearance in the series ends with him escaping from the Legion and still at large.
* LeanAndMean: He's very gaunt and quite devoid of redeeming qualities.
* ManipulativeBastard: Uses the Legion to capture his son, and during Timber Wolf's [[CallingTheOldManOut calling the old man out routine]] in S2 he points out that his father uses everyone this way
* MeaningfulName: His first name is Mar. The word "mar" means to harm or ruin something, which is appropriate because of how harmful his experiments were to his son and his other unwilling test subjects.
* MorallyAmbiguousDoctorate: He experimented on his son and local wildlife without any concern for their well-being.
* NeverMyFault: Thinks Timber Wolf should be ''thanking'' him for changing him into a werewolf-monster.
* ProfessorGuineaPig [[spoiler: He cloned himself at least three times in his second appearance]]
* ReverseArmFold: He quite often has his arms behind his back.
* SkunkStripe: Like father, like son
* SlasherSmile: Shows this during his VillainousBreakdown when he frees his mutated animals to attack the Legion and his son. [[TheDogBitesBack Needless to say it doesn't turn out so well, for him]]
* WeCanRuleTogether: Does this in 'Cry Wolf' with his son except it involved having to use a mind controlling device and giant golems to pummel him. [[SarcasmMode Great parenting.]]

![[spoiler:Brainiac 1.0]]
->Voiced by: Creator/CoreyBurton

* BaldOfEvil: [[spoiler:As is traditional, he has no hair. When Brainiac 5 takes damage while he's stealing his body, Brainiac 5's base body loses its hair as it undergoes repairs.]]
* BigBad: [[spoiler: Outright ''murders'' Imperiex and then takes control of his operations.]]
* EnemyWithin: [[spoiler:Being Brainiac 5's predecessor, he is inevitably in his programming, but was left dormant. When Kandor was invaded by Imperiex, Brainy decided to ask for his assistance, which means Brainiac 1.0 got a foothold in his mind, which is exactly what Imperiex wanted.]]
* KnightOfCerebus: Perhaps even moreso than Imperiex. [[spoiler:Namely, his first appearance in Brainiac 5's head was followed by a number of {{Breather Episode}}s, and after those were done, he then became the central antagonist in the ending two-parter.]]
* NotQuiteDead: [[spoiler: After all is said and done in Season 2, it cuts back to Brainiac 1.0 putting himself back together in a new body, completely separate from Brainiac 5.]]
* VillainousBreakdown: [[spoiler: He starts attacking far more aggressively when Brainiac 5 gains control again, and then screams after being impaled.]]
* WalkingSpoiler: It's difficult to bring him up without spoiling how the second season ends.

!President Wazzo
-> Voiced by: Creator/AprilWinchell

* AmazinglyEmbarrassingParents: Her daughter gets annoyed whenever she goads her to ask boys out.
* DotingParent: She loves her daughter dearly.
* GoodCounterpart: To [[AbusiveParents Dr. Londo]]
* GrayEyes: Like mother, like daughter
* MamaBear: Defended her daughter against a CorruptCorporateExecutive in the Legion of Superheroes comic-adaption of the TV series
* MeddlingParents: She means well but she's ''very'' interested in her daughter's dating life
* ReasonableAuthorityFigure: She knows that her daughter and the other Legionnaires are doing the right thing.

!R. J. Brande
-> Voiced by: Creator/LexLang

* GoodParents: Is proud of his Legionnaire son, [[PluckyComicRelief Chameleon Boy]]
* {{Fiction 500}}: He is said to be one of the richest people in the galaxy.
* HonestCorporateExecutive: He owns a Sun Nursurey and is thankful to Saturn Girl, Lightning Lad and Cosmic Boy for saving his life and helped fund the Legion of Superheroes
* ReasonableAuthorityFigure: He trusts the founding members of the Legion for saving his life.
* TheTeamBenefactor: He gives the Legion of Super Heroes their funding.
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