Code Lyoko/Characters

The Lyoko Warriors (Team Lyoko)

 * Badass: Even when not on Lyoko, Ulrich and Yumi possess advanced martial art skills, Odd is athletic and relatively good at adapting situations, and Jérémie is able to help as much as the others without even fighting. It's saying something they got trapped against XANA's attacks several times and still survived long enough for Aelita to disactivate the towers.
 * Cell Phones
 * Digital Avatars
 * Five Man Band
 * Hero Secret Service: Odd, Ulrich, Yumi and Jérémie are this to Aelita.
 * Medium Blending
 * Ordinary High School Students
 * Playing Sick
 * Powers As Programs
 * Ripple Effect Proof Memory
 * Stealth Hi Bye
 * Teens Are Short
 * Teeth Clenched Teamwork
 * To the Batpole
 * True Companions: Seasons 3-4.
 * Two Girls to A Team
 * Wake Up Go to School Save The World

Ulrich Stern
Ulrich Stern

""Who's the dork that pushed me into Sissi's arms?""

The unofficial hero of the show, and the main favorite of fangirls. He is a quiet and shy person by nature, quite the opposite of his best friend, Odd. Headstrong and stubborn, he cares for his friends and would do anything for them. Ulrich is more athletic than academic and it shows when you compare his grades to his sports performance. He attracts the attention of many females of the school, but has obvious feelings for Yumi. He manifests in Lyoko as an unarmored samurai, with the ability to "Triplicate" into three of himself, and Super Speed. His katana can deflect XANA's creatures' energy attacks.

Lyoko Avatar Season 4 Avatar
 * Abusive Parents: Ulrich's emotionally abusive dad. Not to mention his mother who acts as an enabler by sitting by and watching her husband berate their son.
 * Achilles in His Tent: Wound up in the proverbial tent after being kicked off the team briefly.
 * Battle Couple: With Yumi.
 * Big Man On Campus: Notably, he is not exactly happy with it, as it causes him to have Sissi as a Stalker With a Crush.
 * Book Dumb: He is not actually dumb, but his grades are obviously bad. This is the major source of his tensed relationship with his father.
 * Bring It
 * Casual Danger Dialog
 * Cannot Spit It Out: He likes Yumi. A lot. But he never manages to articulate that -- even in the face of competition.
 * Chick Magnet: Yumi, Sissi, Milly, Émilie, and most androsexual fans have all wanted a piece of him at some point or another.
 * Crazy Jealous Guy: Especially when William enters the picture.
 * Cross Dressing Voices
 * Deadpan Snarker: Mainly toward Sissi and Odd, but the others also get their part of it.
 * Green Eyed Epiphany
 * Green Eyed Monster: Ulrich can be expecially jealous when it comes to Yumi.
 * The Hero: Subverted; even though he has characteristics to be this (using swords, good-looking guy, seemingly the best fighter in the team), he is not the main protagonist (Aelita has much more importance to the plot than him) and he is not the team leader (that would be Jérémie).
 * Jerk With a Heart of Gold: In the prequel, he is much more antisocial, acting displeased by Odd now sharing his room, almost denouncing him to Delmas when discovering he brought Kiwi in secret to Kadic, and even later attempting to use Kiwi as a test subject for Jérémie to see if the virtualization process works. Doesn't prevent him from coming to Jérémie's help twice when seeing him in danger. Judging by how he is portrayed in other episodes, it seems like teamwork eventually made him a better person.
 * Meaningful Name: "Stern"
 * Mr. Fanservice
 * The Stoic
 * Straight Man: To Odd's comic relief.
 * Twice Shy: With Yumi.
 * Unresolved Sexual Tension: With Yumi.
 * Well Done Son Guy
 * Why Did It Have to Be Heights?
 * Will They or Won't They: With Yumi. According to the Series Finale "Echoes", they will... but it was highly tentative.
 * Attack Reflector
 * Badass Biker: From Season 2 onwards.
 * Calling Your Attacks
 * Car Fu: With the Overbike.
 * Doppelganger Attack: "Triplicate!"
 * Doppelganger Spin: "Triangulate!"
 * Everythings Better With Samurai
 * Fingerless Gloves
 * Hit Points
 * Lightning Bruiser: His Super Sprint power and katana makes him both a formidable fighter and the fastest of the group.
 * Katanas Are Just Better
 * Le Parkour: A side effect of Super Sprint.
 * Samurai
 * Speed Echoes
 * Super Speed: "Super Sprint!"
 * Throwing Your Sword Always Works
 * Weapon of Choice: Katana.
 * Dual Wielding
 * Hard Light: When "translated" on Earth.
 * Sensual Spandex

Odd Della Robbia
Odd Della Robbia

""That's just the Magical Odd Effect. You see me once and you feel as though you've known me all your life!""

The only extravert of the Team, and an incorrigible smart-aleck. He dresses in flashy, clashing colors, mostly purple and yellow. Though physically petite compared to the rest of the team, he is an adrenaline junkie, just the type to go for extreme sports. Also a passable student; his strengths are in the languages and artistic classes. He's a big flirt who's dated about every girl in his grade (most of them for only a day or two) as well as a few others. He has smuggled his small dog, "Kiwi", into the dormitories. In Lyoko, his avatar is a Cat Boy version of himself, including claws and a tail. He has heightened agility and stamina in this form, and can shoot "Lazer Arrows" from his forearms -- which, for a time, tended to run out of ammo at the worst possible moments. This shortage was resolved in Season 2 at the expense of another of Odd's powers, the "Future Flash" which offered spontaneous visions of the mostly immutable immediate future. This left Odd with the short end of the stick powers-wise, a fact lampshaded in Season 3's "Triple Trouble" when Jérémie tries to give Odd a teleportation ability, but ended up making two clones for him instead, and the clones wind up not disappearing when no longer needed. At least he still has a marginally useful energy shield, granted as part of the Season 2 power realignment.

"Odd: Yes, I'm a braggart, and I love it that way!"
 * Ambiguously Gay: Subverted; Odd indeed is effeminate, to the point some fan occasionnally had difficulties deciding weither he is a boy or a girl. Graphic errors such as this, or his voice in the French dub, don't help either. Ironically, however, he is actually a Camp Straight Kidanova. Of course, that doesn't stop the Yaoi Fangirls from imagining things...
 * Anime Hair: He is mentionned to use gel to keep his hair that way (though that doesn't explain the bicolor part). Notably, he originally had regular hair in the prequel, and changed it according to what he looks like on Lyoko (twice).
 * Badass Abnormal: When Jérémie used a Tower to gives him powers for a short amount of time so he could fight toe-to-toe with a XANA-possessed Yolande.
 * Big Eater
 * The Big Guy: Subverted, as he's the shortest as well as quite "svelte".
 * Boisterous Bruiser: In training.
 * Book Dumb
 * Bring It
 * Brought Down to Badass: Even after Jérémie erased his Future Flash power, he is still very competent. Of course, the fact his power wasn't of much use to begin with does help.
 * Butt Monkey: Gets the least respect in his group and, as he lampshades, is "the only one whose Lyoko form looks like a dork."
 * Camp Straight: Leading to Viewer Gender Confusion on the part of some.
 * Casual Danger Dialog
 * Catch Phrase: "T'y crois pas!" ("Can't believe it!")
 * Crouching Moron Hidden Badass
 * Expository Hairstyle Change: In the prequel.
 * Face Palm
 * Insistent Terminology: "I'm not scrawny, I'm svelte."
 * Is It Something You Eat
 * Keet
 * Kidanova: He has had relationship with almost every girl in his school, Yumi, Aelita and Sissi excepted (and even then, he once replaced Ulrich as Yumi's partner at dance, flirted with Aelita upon first meeting her, and Sissi gets moments with him several times too.)
 * Leeroy Jenkins: He rarely has any strategy before going; most of his tactics consist either in doing something completely crazy or going ahead shooting at the ennemy.
 * Meaningful Name: Aside from the obviousness, "Odd" may also come from "Odr", meaning "tip of the arrow".
 * Mr. Fanservice: He has his share of fangirls. This is at least partly due to his Lyoko form... and the Sensual Spandex.
 * Multicolored Hair
 * The Nicknamer: He's the one that names all the monsters (even complete with Xtreme Kool Letterz). As if that wasn't enough, two episodes reveal that he also calls some monsters by ordinary human names such as "Lucy-Ann". He's also responsible for Jérémie being called "Einstein" and Aelita "Princess" most of the time.
 * Screams Like a Little Girl: It's even worse in the original French version, where he actually sounds like a kindergarten girl.
 * Shipper On Deck: He is very supportive of Ulrich's relationship with Yumi.
 * Ship Tease: Often with, ironically enough, Sissi.
 * Showthe Forehead
 * Small Name Big Ego: As he stated in the aptly-named episode "Bragging Rights".

Lyoko Avatar "Odd: I don't dream about giant purple cats!"
 * Static Character: The most noteworthy example on the show; he never changes.
 * They Wasted a Perfectly Good Sandwich: He hates this trope; he spends the entirety of the episode "Tidal Wave" complaining about not eating.
 * Alice Allusion: Unintended, but it's undeniable that he's got the whole "Cheshire Cat" thing going.
 * Arch Enemy: The Megatanks. Lampshaded in the first episode.
 * Arm Cannon: Lazer Arrows.
 * Aside Glance
 * Cat Boy
 * Calling Your Attacks
 * Chest Insignia: Of Kiwi peeing...
 * Crazy Enough to Work: Almost everything he does is this.
 * Deflector Shields: Since Season 2 (and in the prequel as a minor continuity goof).
 * Facial Markings
 * Four Fingered Hands
 * Fragile Speedster: In Season 1. While he has as many Hit Points as anyone else, before Jérémie programs in his shield, he has no defenses except dodging.
 * Hit Points
 * Hover Board
 * Instant Cosplay Surprise: Again, in the prequel, he's the most baffled concerning his Lyoko Avatar:

Season 4 Avatar
 * Opera Gloves
 * Le Parkour: The undisputed master of it.
 * Psychic Powers: Future Flash (Season 1).
 * Super Reflexes
 * Taking the Bullet
 * Wall Crawl
 * Weapon of Choice: Lazer Arrows.
 * What Kind of Lame Power Is Future Flash, Anyway?: Not only does this power have very limited use (Odd is the only one unable to use his power at will, and it's worthless in a fight), but the power working causes Odd to stop moving for a while, making him an easy target. Lampshaded when Odd mentions Jérémies erased it accidentally and never bothered reprogramming it because he felt it was useless.
 * Hard Light: When "translated" on Earth.
 * Sensual Spandex
 * Unusual Ears: Cat ears (to complete the feline appearance).

Yumi Ishiyama
Yumi Ishiyama

""Black is my color. Black, like your eye will be if you don't back off!""

The tallest and oldest of the group. A good student, she is a Japanese national at the boarding school, living off-campus with her family. She is one grade above the rest of the Team, which proves sometimes problematic. While she may have feelings for Ulrich, Yumi is exasperated by his inability to articulate his crush. Her virtual form is a geisha with a collapsible razor-edged fan, with which she can deflect energy bolts. The fan is controlled telekinetically, and can be thrown as a ranged weapon, returning to her hand after an attack. Yumi also exhibits telekinetic power over several objects of the Lyoko landscape -- most often boulders in the Mountain or Desert sectors. A running joke among fans is XANA's tendency to single her out for attack.

Lyoko Avatar Season 4 Avatar
 * Action Girl
 * Bare Your Midriff
 * Battle Couple: With Ulrich.
 * Bob Haircut
 * Catch Phrase
 * "Banane!" ("Dork!")
 * "Sympa, l'accueil. Très sympa." ("Nice welcome. Very nice.")
 * Cool Big Sis
 * Deadpan Snarker: Not as much as Ulrich, but when provoked...
 * Designated Victim: Which can be explained by Yumi being the only one amongst the Lyoko-Warriors to not be in pension, making her isolated and as such an easy target for XANA's attacks. One could argue her role as the group's Cool Big Sis and the fact she's the most reluctant to keep fighting might help as well, considering XANA's habits to play with people's minds.
 * Everyone Knows Morse: She and Hiroki learned it to talk in secret at the table.
 * Furo Scene
 * Green Eyed Epiphany
 * He Is Not My Boyfriend!
 * Just Friends
 * The Lancer
 * Mistaken Nationality: "I. Am. JAPANESE!!"
 * One Head Taller
 * One of the Boys
 * Raven Hair Ivory Skin
 * Shorttank
 * Showthe Forehead
 * Tomboy
 * Tomboy and Girly Girl: Tomboy to Aelita's and Sissi's Girly Girls.
 * Twice Shy: With Ulrich.
 * Unresolved Sexual Tension: With Ulrich.
 * Will They or Won't They: With Ulrich.
 * Zettai Ryouiki: Only in the first episode.
 * Boomerang Comeback
 * Did Not Do the Research / Unfortunate Implications: Her kimono from the first three seasons has the right side fastened over the left. Traditionally, this means that the wearer is dead.
 * Everythings Better With Spinning: Geisha Tornado.
 * Hit Points
 * Mind Over Matter
 * Le Parkour
 * Precision Guided Boomerang: Tessen Fan.
 * Pstandard Psychic Pstance
 * Psychic Powers: Telekinesis.
 * She Fu
 * Three Point Landing
 * Weapon of Choice: Tessen Fan (two since Season 2).
 * Fingerless Gloves
 * Fashionable Asymmetry
 * Hard Light: When "translated" on Earth.
 * Instant Awesome Just Add Ninja
 * Opera Gloves
 * Sensual Spandex

Jérémie Belpois
Jérémie (Jeremy) Belpois

""OK, XANA. What do you have in store for us this time?""

Jérémie is the computer genius whom operates the Supercomputer and allows the interface. He's also the leader of the Team, and shows good tactical skills even under pressure. As the most levelheaded, he keeps the infighting within the group to a minimum. He can even get a bit authoritarian, despite being the youngest. Jérémie is one year younger than Ulrich and Odd, having skipped a grade. He has more than a crush on Aelita, and it's largely this motivation that keeps the Team going in time after time to shut XANA down. Though he has been virtualized twice, this has never been done on camera -- something of a Lampshade Hanging on the second occasion.

Lyoko Avatar
 * Adorkable
 * As You Know
 * Color Coded for Your Convenience: Green.
 * Cross Dressing Voices
 * Everyone Knows Morse
 * Everything Is Online
 * Gadgeteer Genius
 * Good Counterpart: Develops into a full-fledged anti-XANA as he gains more experience with the Supercomputer.
 * Hand Behind Head
 * In Series Nickname: "Einstein"
 * The Insomniac
 * Laymans Terms
 * Mad Scientist: He has his moments. They tend to backfire.
 * Mission Control
 * Mr. Exposition
 * Nerd
 * Nerd Glasses
 * Non Action Guy
 * Official Couple: With Aelita.
 * Beta Couple
 * The Dulcinea Effect
 * Give Geeks a Chance
 * Love At First Sight
 * Pair the Smart Ones
 * Playful Hacker: At first. Character Development gradually strips out the "playful" part.
 * Rapid Fire Typing
 * The Short Guy With Glasses
 * The Smart Guy: Unusually for a Five Man Band, he's the leader rather than Ulrich.
 * Smart People Play Chess
 * Spell My Name With an S
 * Team Dad
 * Techno Babble
 * Techno Wizard
 * Teen Genius
 * Voice With an Internet Connection
 * Wise Beyond His Years
 * Take Our Word for It: "He was ridiculous..."
 * The Un Reveal

Aelita Stones
Aelita (Maya) Stones (Lyoko / Hopper / Schaeffer)

""And just forget about my past, you think that's easy? You didn't spend ten years of your life as some sort of computer software!""

Aelita started out as the Distressed Damsel in the series. Unlike the other characters, she seemed to have originated on Lyoko, and survived there for years. The first season of the show deals with Jérémie and the Team trying to figure out a way to materialize her into the real world. She originally had two special abilities in Lyoko: she could enter the access towers that XANA uses to interface with the real world, and shut them down, and she had the ability to morph the virtual landscape around her to create walls, rockslides, etc. Starting with Season 3, she was no longer in danger of being killed if losing all her Life Points. She gained the ability to attack with spheres of energy as well, and obtained wings in Season 4 with her new outfit.

Lyoko Avatar Season 4 Avatar
 * Action Girl: Initially not, but she start developping traits of it in season 2 and fully becomes one starting with season 3.
 * Artificial Human:
 * Beta Couple: With Jérémie.
 * Break the Cutie
 * Catapult Nightmare
 * Can't Live Without You: With the Supercomputer in Season 2.
 * Character Development: Lots.
 * The Chick
 * Designated Victim: Very justified, since she is the key to stop XANA from attacking Earth. As such, it's only natural for XANA to focus on her.
 * Disney Deaths: Happen several times.
 * Distress Ball
 * Distressed Damsel: Seasons 1-2.
 * Dreaming of Things to Come
 * Driven to Suicide: She failed, though.
 * Everythings Better With Princesses
 * Fetal Position Rebirth
 * Girl in a Computer
 * Human Popsicle: Although not through cryonics -- she didn't age for 10 years while virtualized inside the Supercomputer.
 * I Have Many Names
 * In Series Nickname: "Princess"
 * Little Miss Snarker: Full-fledged in Seasons 3-4, but there was some present before then.
 * The Load: In Season 1 and sometimes in Season 2.
 * MacGuffin Girl: Inverted Trope.
 * Magical Girlfriend
 * Magic Skirt
 * Martyr Without a Cause: Seasons 1-2.
 * Missing Mom
 * Neutral Female: Season 1.
 * No Social Skills: At first in Season 2, she has little to no idea how the real world works.
 * Official Couple: With Jérémie.
 * Older than She Looks
 * Pair the Smart Ones: With Jérémie.
 * Pink Haired Girl
 * Plucky Girl
 * Princesses Prefer Pink
 * Sealed Good in A Can: Season 1.
 * Single Woman Seeks Good Man: And gets him.
 * Smart People Play Chess
 * Teen Genius
 * Tomboy and Girly Girl: Girly Girl to Yumi's Tomboy.
 * Took a Level In Badass: By Season 2 and definitely in Seasons 3-4.
 * Troubled Fetal Position
 * Undead Tax Exemption: Averted. Team Lyoko has to do the work to create an identity for her (though Jérémie is very good at "arranging" her paperwork), and there are enough holes in it for Sissi to occasionally piece together that something's going on.
 * Why Did It Have to Be Snakes: Twice...
 * Why Did It Have to Be Wolves?: They feature heavily in her recurring nightmares.
 * Why Did It Have to Be the Scyphozoa?: She really catches the Distress Ball whenever it pops in, even in later seasons when she's the most powerful member of the group.
 * Why Did It Have to Be Wolves?: They feature heavily in her recurring nightmares.
 * Why Did It Have to Be the Scyphozoa?: She really catches the Distress Ball whenever it pops in, even in later seasons when she's the most powerful member of the group.
 * Calling Your Attacks
 * Decoy Getaway
 * Deadly Dodging
 * Detached Sleeves
 * Energy Ball: Seasons 3-4.
 * Facial Markings
 * Green Eyes
 * Hit Points
 * Hypnotize the Princess
 * Lotus Position
 * Neuro Vault
 * One Woman Wail
 * Override Command:
 * Pointy Ears
 * Psychic Powers: Creativity, Second Sight.
 * Reality Warper
 * Support Party Member: Seasons 1-2.
 * The Captain: Of the Skidbladnir.
 * Fingerless Gloves
 * Flight
 * Hard Light: When "translated" on Earth.
 * Opera Gloves
 * Power Gives You Wings
 * Sensual Spandex
 * Skirt Over Slacks: A translucent, plastic-like skirt.
 * Winged Humanoid

William Dunbar
William Dunbar

""I'm not the kind of guy who likes to steal the show.""

A transfer student exiled to Kadic Academy in Season 2 for spamming love notes. His primary function during the first half of his tenure was to act as a Romantic False Lead for Yumi and lampshade Ulrich's inability to spit it out in the process. William's assistance in foiling several of XANA's schemes on the real-world side proved critical late in Season 2 and into Season 3, though, and after he confided to the Team that he was starting to dream about elements of his adventures that should have been erased with the Return to the Past, the Lyoko Warriors reluctantly (but unanimously) took him on as their newest member. It went downhill from there. Mind-controlled by XANA (and stripped of his higher vocabulary in the process), William spends the majority of Season 4 as the Lyoko Warriors' most consistent virtual threat. He gets better, but the show ends two episodes later, and on kind of a harsh note for him.

Lyoko Avatar
 * The Atoner: Subverted; he attempts to be this in season 4 finale, but is rejected by the Lyoko-Warriors.
 * Chekhov's Gunman
 * Eerie Pale Skinned Brunette: In Evolution, according to the trailers.
 * Leeroy Jenkins: What caused him to end up possessed.
 * Love Makes You Crazy: "Makes me totally insane."
 * Mr. Fanservice
 * New Transfer Student
 * Promotion to Opening Titles: When he becomes a villain.
 * Put On a Bus: His possession effectively took him out of the show.
 * Reformed but Rejected: Sadly, after freeing him, all Lyoko-Warriors but Aelita have difficulties forgiving him for what he did under XANA's control (despite Aelita pointing out it wasn't is fault and it could have happened to any of them). It goes as far as when he attempts to redeem himself by helping them, Yumi violently rejects him and refuses he'd come on Lyoko, arguing XANA might seize the opportunity to control him again.
 * Romantic False Lead: To Yumi.
 * Shiny Midnight Black
 * Sixth Ranger → Sixth Ranger Traitor
 * Stalker With a Crush
 * All Your Powers Combined
 * Battle Cry: "FOR XANA!"
 * Brainwashed and Crazy
 * The Dragon
 * Evil Costume Switch
 * Facial Markings: An Eye of XANA on the forehead.
 * Fetal Position Rebirth
 * Fingerless Gloves
 * Hard Light: When "translated" on Earth.
 * Hit Points
 * Hulk Speak: His usual speech when under XANA, though he does have actual sentences occasionnally.
 * Hyde Plays Jekyll: Does it twice to trick Aelita, with remarkably successful results.
 * Mark of the Beast: The Eye of XANA.
 * Nonchalant Dodge
 * Power Floats
 * Psychic Powers: Telekinesis, Far Sight.
 * Razor Wind
 * Sensual Spandex
 * Super Smoke: Trope Namer.
 * Sword Beam
 * Sword Drag
 * Theme Music Power Up
 * Took a Level In Badass / Took a Level In Jerkass: Oddly enough, his fanbase got much bigger after this. Granted, he went from an annoying rival to Ulrich to a badass villain, so that might be actually understandable.
 * Voice of the Legion
 * Weapon of Choice: BFS.

XANA
XANA (X.A.N.A.)

""NOT LOGICAL! NOT LOGICAL!""

This malevolent A.I. is the main antagonist. Created by Franz Hopper to counter "Project Carthage", he rebelled against his creator and was sealed in the Supercomputer some 10 years before the start of the series. His true motivations are unknown, but he is hostile to humanity, and to Team Lyoko in particular. He regularly attacks the real world through the Lyoko Towers. Being a program, he has no definite shape and manifest through the ever-present logo (or Eye of XANA) and monsters on the Lyoko Sectors. He tries to escape the Supercomputer throughout Season 2 so that the heroes can no longer defeat him by cutting the juice, and after doing so he attempts to conquer the world in Season 4 by creating an army of robots.


 * AI Is a Crapshoot
 * Arch Enemy: To the Lyoko-Warriors and Franz Hopper.
 * Big Bad
 * Character Development: Ironically for a never-seen character, he gets lots of it throughout the series. His goals shift along with time according to the situation, his schemes become more complex, and his power increasing allow for varied and subtler tactics.
 * The Chessmaster: Not as much initially, but as the series progresses, he starts developing more complex schemes.
 * Color Coded for Your Convenience: Red.
 * The Cracker
 * Crazy Prepared:
 * Dangerously Genre Savvy: He usually plans everything that can logically be planned, and, when he does make mistake, he learns from it.
 * Enemy Mine: In "Marabounta" with the Lyoko-Warriors.
 * Evil Computer Virus Cannot Comprehend Friendship: in season 1; due to his intelligence being based on pure logic, he was unable to understand why Jérémie would go into the scanners (something that is stated to terrify the young hacker) to save his friends. In later episodes, however, he seems to have grown intelligent enough to correct this deffect.
 * Faceless Eye: His trademark symbol.
 * He Who Must Not Be Seen: He doesn't even have a body to begin with.
 * Instant AI Just Add Water
 * Manipulative Bastard: Though he has issues understanding emotions, he is still smart enough to develop various schemes based on emotional manipulation. As the serie progress, he gradually becomes better at it, eventually going near to the Magnificent Bastard level.
 * Master Computer: Seasons 1-2.
 * Noble Demon
 * Hinted in "Marabounta"; after teaming up with the Lyoko-Warriors against the common threat, they expect him to turn against them, but his monsters instead politely bow to them before retreating without any fight.
 * Similarly, in "Ultimatum", when he attempts to blackmail the Lyoko-Warriors into delivering Aelita to him by taking Odd and Yumi as hostages, he doesn't attempts to kill them until it's clear Jérémie refused, and even shows concern with keeping them alive.
 * Also when XANA possessed Jim and attacked Jérémie in "Final Mix", he merely restrained Jérémie when he quite easily could have killed him.
 * Powers That Be
 * Sealed Evil in A Can: The Supercomputer being the Can. Though it only truly imprisons him when you shut it down; when active, it still prevents him from escaping, but not from wreaking havoc.
 * Sliding Scale of Robot Intelligence: Nobel (to maybe Godlike by Season 4).
 * Turned Against His Master
 * Ultimate Evil
 * Villainous Breakdown: Has one toward the end of Season 1, in the episode "Ghost Channel", where the above quote comes from.
 * The Voiceless: With the exception of the parts in "Ghost Channel" and "Franz Hopper", we never hear him talking. And even then, it's unclear if it was actually him talking.
 * Xanatos Gambit: Aside from the Incredibly Lame Pun, XANA often pulls out those. And to some extent, any of his plans involving massive damages or witness can be considered as such: even if the Lyoko-Warriors successfully stop his attack, they are forced to use the Return to the past to erase the event, making XANA stronger in the process.
 * The Voiceless: With the exception of the parts in "Ghost Channel" and "Franz Hopper", we never hear him talking. And even then, it's unclear if it was actually him talking.
 * Xanatos Gambit: Aside from the Incredibly Lame Pun, XANA often pulls out those. And to some extent, any of his plans involving massive damages or witness can be considered as such: even if the Lyoko-Warriors successfully stop his attack, they are forced to use the Return to the past to erase the event, making XANA stronger in the process.

Lyoko Monsters
Lyoko Monsters

The dozen or so models of virtual monsters that XANA uses to defend activated towers and other important locations on Lyoko:


 * Guardians (Gardiens) -- Not actually monsters, but force fields designed to trap a victim on Lyoko while XANA confused the heroes with tangentially-related real-world shenanigans. Used twice in Season 1 and shelved afterwards.
 * Kankrelats (Roachsters) -- As close to The Goomba as you'll get from XANA, these mollusk-like critters have a basic design: legs, a laser cannon housing, and little else. They often make up for their lack of individual strength with Zerg Rush tactics; their small size also allow them to hide and act as snipers. The first of two monsters to be fielded in the real world (in "False Start"). Quickly evolved into the Plucky Comic Relief among the monsters with their tendency for being Too Dumb to Live.
 * Frelions (Hornets) -- The Airborne Mooks of Lyoko, looking like giant wasps with ten wings. They fly around, shoot lasers from their stingers, drip acid at close range, and make the Lyoko Warriors suffer for not having a dedicated anti-air weapon.
 * Bloks -- Walking cubes about twice as tall as one of the heroes. The four side faces are marked with Eyes of XANA -- one is the actual weak point, while the other three fire lasers, ice rays, and rings of fire respectively. The ice rays can paralyze the targets or devirtualize them if they're low on Life Points. The fire rings are the least often used, though both Ulrich and Odd got devirtualized by them in "The Secret".
 * Krabes -- These four-legged, lanky six-eyed beasts deliver powerful laser attacks from both their eye arrays and underbellies. They sometimes also try to skewer the heroes with their pointy legs. Krabes are the first monster type to be deployed en masse ("The Chips Are Down", in which a line of several dozen guards the tower) and the second (and final) type to be deployed on Earth ("A Bad Turn").
 * Megatanks (Mégatanks) -- A deathly powerful area denial weapon, these things consist of an arc-laser emitter cocooned within two indestructible shell halves which expand and contract to allow firing. Their attacks are arguably powerful enough to destroy Towers with enough concentrated fire (as attempted during Aelita's first transfer out of Lyoko in "Code: Earth"), but can be resisted with a couple of the Lyoko Warriors' weapons. They also move very fast by closing their shell and rolling on themselves, not hesitating to crush any unlucky hero in their path.
 * Tarantulas (Tarentules) -- XANA's apparent first attempt at min-maxing its monsters: they have more Life Points than any other monster barring the Scyphozoa (as of its Season 2 rollout), the Eye of XANA weak point is small and located at the back of the head, and their mobility is largely sacrificed for high-speed firing of the laser cannon stubs on their arms.
 * Scyphozoa (la Méduse) -- XANA's first Dragon, looking like a levitating giant jellyfish. It eschews direct attacking for wrapping its tentacles around Aelita and attempting to crack her Neuro Vault open. Other notable targets include Yumi (to force a variant Friend or Idol Decision by making Aelita transfer her own materialization code to replace Yumi's deleted version), William (to make him the new Dragon), and the Skidbladnir (to sabotage its shield regeneration). It normally retreated when it was rendered unable to gain what it came for, only having been destroyed once in "The Lake" when it was overloaded, but XANA just made another.
 * Creepers (Rampants) -- Worm-like monstrosities that inhabit Sector 5 exclusively, where they Wall Crawl at will. The unique laser cannon in their mouth is more powerful on average than those of other monsters. Notable for being one of the few enemies that explodes in a large quantity of Ludicrous Gibs.
 * Mantas -- White-and-blue manta rays that "swim" through the air and shriek like hawks. As if XANA didn't have enough air superiority, these Giant Flyers hatch from the Celestial Dome surrounding Sector 5 and can deploy practically everywhere to shoot the regular lasers or poop deadly multi-terrain mines. William gains a black one as steed when under XANA's servitude.
 * Kongres -- Eel-like monsters that antagonize the heroes in the Digital Sea. Have More Teeth Than the Osmond Family.
 * Sharks (Rekins) -- Shark-like monsters also native to the Digital Sea. Fire torpedoes instead of lasers.
 * Kalamar -- Only seen once in the Digital Sea, it attempted to drill through the Skid's hull.
 * Kolossus (le Kolosse) -- XANA's last-minute Giant Mook, appearing as a towering Lava Golem with a blade for a left arm. It foregos standard lasers to crush the Lyoko Warriors and the Skidbladnir with sheer physical power. It is harder to kill than most monsters, having two Eyes of XANA that must be hit simultaneously to destroy it.
 * Video-game monsters -- The Volcano Replika and other locales in the Code Lyoko video games give XANA several extra additions to its bestiary, from lanky Insekts to hardy Volcanoids to the first DS game's Final Exam Boss Scorpion.


 * Artificial Stupidity: The monsters occasionally commit ridiculous mistakes, sometimes even shooting each other. This is lampshaded in "Marabounta", where Odd, while, mentions that "the only thing stupider than one Block is two Blocks".
 * Attack Its Weak Point: The Eye of XANA.
 * Epileptic Flashing Lights
 * Frickin Laser Beams: All monsters, with the exception of the uniques ones (Scyphozoa, Kalamar, Kolossus), primarily attack that way. Apart from the Kankrelats, they have other modes of attack, though.
 * Hit Points
 * Imperial Stormtrooper Marksmanship Academy
 * Nice Job Fixing It Villain: It has happened for the monsters to keep firing on a hero about to fall in the Digital Sea -- thus saving him or her from being stuck by timely devirtualization.
 * Made of Explodium
 * Mecha-Mooks
 * No Body Left Behind
 * Powers As Programs
 * Robo Cam
 * Sliding Scale of Robot Intelligence: Bricks (except the Scyphozoa).
 * Super Drowning Skills
 * Xtreme Kool Letterz

Specters
Specters

Artificial smoke-beings created by XANA through an activated Lyoko Tower to cause havoc on Earth. At first they were only able to take control of inanimate objects or machines, but as XANA gained in power they started taking over animals or even humans. The possessed ones (often labeled as "XANAfied") can be recognized by the XANA symbol in their eyes. The Specters confer them some special powers, like Nigh Invulnerability (they can still be knocked out if taken by surprise, and are vulnerable to electricity or EMP), Super Strength, Wall Crawl, Shock and Awe... and others as the series progresses. Alternatively they can control many animals or people, but then fewer special powers are gained because XANA's energy is diluted.


 * Body Snatcher
 * Glamour Failure
 * Hulk Speak
 * Intangible Man
 * Mind Control Eyes
 * Nigh Invulnerability
 * Robo Cam
 * Shock and Awe
 * Sliding Scale of Robot Intelligence: Monkey to Average-Joe.
 * Speed Echoes
 * Super Strength
 * Voice of the Legion
 * Walk On Water
 * Wall Crawl
 * Wetware Body

Polymorphic Clones
Polymorphic Clones

An advanced form of XANA's Specters, the Polymorphic Clones have no need for a host and can take a human shape by themselves. They can copy many appearances, most often of the Lyoko Warriors or some adult to sow division or attack by surprise. They have the same powers as a XANAfied human with the addition of shapeshifting. They solely appeared on Earth, with the exception of one going to Lyoko through a scanner by replacing Odd in the episode "Revelation". Jérémie mastered the technology in Season 4 to create a short-lived clone of himself, and then a replacement for William. Both of Jérémie's clones, however, have a strange programming flaw: their personalities are partially inverted compared to the originals. The Jérémie Clone is an insufferable Odd-like Kidanova, while the William Clone is dumb as a sack of bricks.


 * Artificial Human
 * Doppelganger
 * Glamour Failure
 * Hard Light
 * Hellish Pupils
 * Hulk Speak
 * Intangible Man
 * Kiss Me I'm Virtual
 * Nigh Invulnerability
 * Robo Cam
 * Shock and Awe
 * Sliding Scale of Robot Intelligence: Average-Joe (though William is more of a Monkey).
 * Speed Echoes
 * Spot the Imposter
 * Super Smoke
 * Super Strength
 * Voice of the Legion
 * Voluntary Shapeshifting

Kadic Academy

 * Adults Are Useless: Usually played straight, but notably adverted big time with Jim, who occasionally helps a lot, and Franz Hopper, whose position as the Big Good ensure him being useful.
 * Boarding School
 * Junior High
 * Meaningful Name: "Kadic"

Élisabeth "Sissi" Delmas
Élisabeth (Elizabeth) "Sissi" Delmas

""I'm the star, the diva of the school!""

Daughter of Kadic Academy principal Jean-Pierre Delmas. She can have practically any boy at school -- but she wants Ulrich, who'd rather have nothing to do with her despite (or maybe because) they'd known each other since childhood. To separate Ulrich from Yumi (not that they're actually together, honest), Sissi makes a variety of attempts to undermine the bonds of friendship between the Lyoko Warriors. These often manifest as attempts to administratively separate them through her power as a one-girl Absurdly Powerful Student Council or the use of blackmail material to buy her way into the group. Either way, she has the potential to sow a greater division than XANA himself. The prequel two-parter "XANA Awakens" reveals that she had initially been in on the Lyoko Warriors' secret, but her memories of the Supercomputer's activation were wiped with a RTTP because she notified her father due to thinking her friends were in danger and a misunderstanding of betrayal occured. Hints dropped from late Season 2 and through Season 4 seem to reinforce Fanon that Sissi could be perfectly content with Odd -- so long as she doesn't realize it's a Bohemian like him that she connects with.


 * Absurdly Powerful Student Council
 * Action Survivor: Just try to count the numerous XANA attacks she was directly involved in that she survived.
 * Alpha Bitch: Though becomes a Lovable Alpha Bitch through Character Development.
 * Bare Your Midriff
 * Bathing Beauty
 * Brainless Beauty: Or so she comes across; she's actually smarter than she seems.
 * Bratty Teenage Daughter
 * Butt Monkey
 * Catch Phrase: "Cretin(s)!"
 * Character Development: Becomes a progressively better person throughout seasons 1, 2, and 4 (not so much season 3.)
 * Clingy Jealous Girl
 * Defrosting Ice Queen
 * Demoted to Extra / Out of Focus: In Season 3 and 4, especially 3 (she becomes relevant again late into Season 4).
 * Depending On the Writer: The level of sympathy her character is treated with changes from episode to episode; shown moreso in Seasons 2 and 4 (where she was sympathetic in the majority of her appearances) than 1 and 3 (where she... wasn't, though she did have her moments in 1.)
 * Do Not Call Me Paul: "It's Sissi! Not Élisabeth!"
 * Dungeonmasters Girlfriend
 * Foot Focus: She's the subject of it several times.
 * For example episode 3, "Holiday in the Fog". Sissy takes a nap with her shoes and socks comfortably discarded. However, she gets a rude awakening by an incoming cloud of gas. The sight of it frightens her so much, she flees down the hall barefoot, abandoning her footwear in her dorm instead of risking her life to waste time grabbing them, then crashes right into Jim. However, she's somehow acquired her shoes and socks again by the time she's locked in an elevator (possibly an animation error or an offscreen moment where Jim grabbed a spare set of shoes).
 * Green Eyed Monster
 * Hopeless Suitor
 * Hormone Addled Teenager
 * Jerk With a Heart of Gold
 * Little Miss Snarker
 * Lingerie Scene
 * The Load: Sometimes, but sometimes not; it all depends on the situation.
 * Love Dodecahedron: At least three sides of it.
 * Malaproper
 * Missing Mom: Word of God states that Sissi's mother is alive, but lives away from Sissi and her father. She is never seen or mentioned in the show.
 * Ms. Fanservice
 * Only Known by Her Nickname: Only adults ever call her "Élisabeth", and she hates that. Everybody else calls her "Sissi".
 * Screaming Woman
 * Ship Tease: With Odd, particularly in Season 2's "Déjà Vu" and Season 4's "Kadic Bombshell" and "Bad Connection".
 * Showthe Forehead
 * Skirt Over Slacks
 * Spoiled Brat
 * Spoiled Sweet: Sometimes, particularly in the prequel two-parter and later the ending (basically, the entire Lyoko/XANA incident wasn't good for her personality, which was better before and after it.)
 * Stalker With a Crush
 * Throw the Dog A Bone: On occasion, and
 * Tomboy and Girly Girl: A rival (sort of) case with Yumi.
 * Unknown Rival: Yumi is mature enough to realize that Sissi is a Hopeless Suitor, and thus a rivalry between them is barely acknowledged on her part.
 * Unlucky Childhood Friend

Jim Moralès
Jim Moralès

""Actually, I'd be glad to talk about it, but I don't have the time!""

The Gym teacher and dormitory supervisor at Kadic Academy. A bit overweight and prone to speeches full of redundancies and malapropisms, he's most often the comic relief. But when things get dangerous he can prove extremely courageous and fiercely protective of the children. Jim is sometimes the butt of the students' practical jokes, and as a result can be overly severe toward them. He's very suspicious of Team Lyoko, and ends up discovering the Factory several times, to have his memory erased by the Returns to the Past. Starting with Season 2, whenever appropriate to the situation, his shtick is to mention one of the many jobs or hobbies he's supposed to have done in the past, from sewer worker to astronaut.... Though some of these might be true, most are probably wild exaggerations, as suggested in the episode named for his Catch Phrase.


 * Badass Teacher
 * Butt Monkey
 * Catch Phrase: "I'd rather not talk about it."
 * Crouching Moron Hidden Badass
 * Department of Redundancy Department
 * Drill Sergeant Nasty
 * Expansion Pack Past
 * Gratuitous Disco Sequence
 * I Minored in Tropology
 * Jerk With a Heart of Gold
 * Let's Get Dangerous
 * Malaproper
 * The Munchausen
 * Noodle Incident: Over the span of his career... too many to count.
 * Papa Wolf: The students may not actually be his children but they're his students and by golly, he's going to protect them!
 * Plucky Comic Relief
 * Pointless Band-Aid
 * Sixth Ranger: Temporarily, at the end of Season 1. But then he gets his memory erased when the gang go back in time.
 * Why Do You Keep Changing Jobs

Hiroki Ishiyama
Hiroki Ishiyama

""YUUUUMIII, your boyfriend is here!""

Yumi's younger brother, appearing in Season 2 and joining the 6th grade at Kadic at the start of Season 3. He shows some hero-worship toward Ulrich, and constantly hounds his sister to date the Stern boy and admit her feelings for him. A bit of a crook, he often blackmails Yumi into doing his homework in exchange for not tattling to their parents when she's out saving the world. Unwittingly tagging along in some of XANA's attacks, he tends to be a dangerous distraction (in "A Bad Turn"), but also shows some useful skills (like picking locks in "Hot Shower"). He never keeps memories of this thanks to the Returns to the Past, though.


 * Annoying Younger Sibling
 * Bratty Half Pint
 * Everyone Knows Morse: He does have an excuse for this, though; he and Yumi learned it to talk in secret at the table.
 * Remember the New Guy
 * Shipper On Deck
 * Tagalong Kid
 * Young Entrepreneur

Franz Hopper
Franz Hopper 

Aelita's father, and the creator of the Supercomputer, Lyoko and XANA. His real name is. Also a former Science teacher at Kadic Academy.


 * Big Good
 * Color Coded for Your Convenience: White.
 * Mad Scientist: He built the Supercomputer, Lyoko and XANA on his own.
 * The Obi Wan: He serves this function to Jérémie, helping him to refine his programming and giving him data and better weapons with which to fight XANA.
 * Opaque Nerd Glasses
 * Papa Wolf: And XANA knows it.
 * The Professor
 * Properly Paranoid: He suspected agents were following him while he was working on the Supercomputer. He was right.
 * Transhuman Aliens: Hopper is permanently virtualized into Lyoko, and his avatar is a brilliant ball of light, rather than a humanoid like the other Lyoko Warriors.
 * The Voiceless: While his voice is heard on screen, it's always either in a flashback or a XANA trick. Hopper himself is never heard to speak.
 * The Voiceless: While his voice is heard on screen, it's always either in a flashback or a XANA trick. Hopper himself is never heard to speak.