Here's a list of the characters that appear in ''Anime/VividredOperation''. '''[[Administrivia/YouHaveBeenWarned Beware of unmarked spoilers]]!'''

!!Akane Isshiki / [=VividRed=]
->'''Voiced by:''' Creator/AyaneSakura

An energetic and cheerful fourteen-year old who lives with her grandfather Kenjirou and younger sister Momo, with a part-time job as a newspaper courier riding the world's only flying bicycle, created by Kenjirou. One day, however, her peaceful life is disrupted when an alien race called Alone emerges on Earth and wreaks havoc. In response, Kenjirou gives her a key to unlock the Vivid System, which grants her amazing abilities (along with a special costume called a Palette Suit) in order to save the world.
* AllLovingHeroine: She's very kind and shows love to everyone. Also, she did everything to save Rei even after knowing she was responsible for the Alone attacks.
* AmbiguouslyLesbian: She is '''very''' affectionate with even recent acquaintances, addressing them with the affectionate suffix "-chan", eager to kiss Aoi, and shown to have some sort of crush on Rei.
* AttentionDeficitOohShiny: Seagulls distract her... a lot.
* BadassAdorable
* CoolBigSis: In spite of Momo being more level headed, responsible and more mature than she is, Akane is nevertheless a nurturing and kind maternal figure that Momo looks up to in their mother's absence.
* CurtainsMatchTheWindow: Red eyes and hair.
* TheDitz: No, Akane, you can't fix "Himawari-chan" with sticky white rice.
* ElementalPunch: [=VividRed=]'s Vivid Punch attack uses [[spoiler: the PowerOfCreation itself]].
* EleventhHourSuperPower: [[spoiler:The [=VividRed=] Operation form.]]
* {{Expy}}:
** From both ''Anime/QueensBlade'''s Airi (character design-wise, except younger) and Yoshika Miyafuji from ''Anime/StrikeWitches'' (personality). Both characters were designed by the same creator.
** Also one to ''Manga/IsTheOrderARabbit'''s Cocoa Hoto due to having similar personalities and the same voice actress.
* FieryRedhead: She's a passionate and outgoing red-head.
* GenkiGirl: She's very active and outgoing. It's rare to see her show any other emotion besides being bright and cheery.
* GirlishPigtails: Befitting her happy-go-lucky nature.
* HairAntennae: She has two strands of hair that stick up from the top of her head.
* TheHeart: She is the glue that holds the team together.
* HeterosexualLifePartners: With Aoi.
* IdiotHero: Actions first, think second.
* NiceGirl: Akane is friendly and optimistic, being willing to provide help to anyone who requires it.
* NoSenseOfPersonalSpace: Tends to be rather physical when it comes to the other girls, especially with Rei in the bath tub in episode 10, where she ''shoves her ass in Rei's face to show her a birth mark with a prideful look on her face.'' Wow, Akane....
* PluckyGirl
* PowerGivesYouWings: [[spoiler: As [=VividRed=].]]
* PrecisionGuidedBoomerang: Her weapon when transformed -- ''Naked Rang''.
* RedOniBlueOni: The red to Aoi's blue. She's cheery and full of life.
* TrademarkFavoriteFood: She's very fond of mayonnaise and often squeezes a large amount of it on rice and vegetables.
* WhyDidItHaveToBeSnakes: Starts the series with a chronic fear of heights, stemming from a factory explosion seven years ago that killed her father and severely injured her mother. She overcomes it at the end of Episode 1, which is fortunate, as almost all of the Alone battles are aerial sorties.

!!Aoi Futaba / [=VividBlue=]
->'''Voiced by:''' Creator/RieMurakawa

Akane's classmate and best friend, as well as the daughter of a wealthy family, who's currently in Oshima Island for medical treatment. With her parents too busy to pay her a visit, Akane becomes her source of strength, more so when the Alone began their rampage, as Aoi becomes the second Vivid System user.
* CurtainsMatchTheWindow: Blue eyes and hair.
* DoesNotLikeSpam: Aoi hates tomatoes. Since Akane gave her a tomato when they first met, Aoi felt she had to hide her dislike.
* DropTheHammer: Her WeaponOfChoice, ''Naked Impact'', a giant rocket-powered hammer.
* HairDecorations: She wears a white headband.
* HeterosexualLifePartners: With Akane.
* IllGirl: Her parents sent her to Oshima so her health would improve.
* LonelyRichKid: Was this until she befriended Akane.
* NervousWreck: More often than not, especially when Akane is doing something dangerous.
* NiceGirl: She's usually polite and helpful.
* {{Ojou}}: She's from a wealthy family. It's shown in one episode that they own an entire shopping mall.
* RedOniBlueOni: The blue to Akane's red. She's shy and much more composed compared to the latter.
* ShrinkingViolet: She's shy and demure.
* ShyBlueHairedGirl
* SuperStrength: One of the first things she does when transformed is stop an airplane from crashing with her bare hands. It's also implied some of this may carry over when she's not transformed, as in Episode 6 she defeats a bear robot by dropping a heavy rock on it's head.
* {{Valkyries}}: [=VividBlue=] looks like a hi-tech version of one.
* YouGottaHaveBlueHair: [[CaptainObvious She has blue hair.]]

!!Wakaba Saegusa / [=VividGreen=]
-->'''Voiced by:''' Creator/YukaOotsubo

Member of New Oshima Academy's kendo team and representative of the class to which Akane and Aoi were transferred. Competitive and at the same time a lover of cute things, as well as a bit dorky, she initially challenges Akane to a duel after being inspired by her father to discover her "true strength", and eventually becomes the third Vivid System user with a green color scheme.
* ACupAngst: When Wakaba lends [[HiddenBuxom Himawari]] her dress, this delightful little situation occurs, much to Wakaba's chagrin:
-->'''Himawari:''' "Hey, this dress is a little tight around the chest!"
** And again in Episode 6, when talking about the swimsuits Wakaba and Himawari bought together:
-->'''Wakaba''': "She said she had no swimsuit, so I thought I could lend her one, but..."
-->'''Akane''': *while looking at Wakaba's and Himawari's chests* Yeah, I don't think she could fit into your swimsuits...
-->*cue annoyed expression and Wakaba's eye twitching*
* AmbiguouslyLesbian: Her relationship and interactions with Himawari can be ''very'' suspect.
* {{BFS}}: Her weapon when transformed. [=VividGreen=] wields an even ''bigger'' sword.
* ClassRepresentative
* CoolBigSis: She has a tendency to act older than the other girls, being the tallest and most skilled out of all of them.
* CutenessProximity: Wakaba is very open about this.
* CurtainsMatchTheWindow: Green eyes and hair.
* HeirToTheDojo
* IdiotHair
* InTheNameOfTheMoon: In the Name of Tengen Rishin-style!
* KendoTeamCaptain
* LaserBlade: Her weapon of choice, ''Naked Blade''.
* MasterSwordsman: A requirement to succeed a tradition of Kenjutsu.
* NonUniformUniform: Wears a version of the uniform with short sleeves when everyone else has long ones.
* PluckyGirl
* TomboyishPonytail
* TomboyWithAGirlyStreak: She sports a TomboyishPonytail and enjoys masculine pursuits, but she also enjoys reading fashion magazines, likes cute things, and loves dressing Himawari up in flattering dresses.
* ViolentlyProtectiveGirlfriend: Her behavior in Episode 9 was full of these moments as she had her day out with Himawari.
* WhyDidItHaveToBeSnakes: She's scared of bugs.
* YouGottaHaveBlueHair: She has dark green hair.

!!Himawari Shinomiya / [=VividYellow=]
->'''Voiced by:''' Creator/AyaUchida

A hacker and classmate of Akane, Aoi and Wakaba. Following a traumatic incident, she has since shut herself into her room, attending school through a camera attached to her class seat. After Akane saves a power plant, she finds the courage to come back to school, in the process becoming the fourth Vivid System user with a yellow motif.
* AttackDrone: Her weapons of choice, ''Naked Collider''. She can also turn them into a {{BFG}} as [=VividYellow=].
* BarrierWarrior: Himawari uses her mechanical gauntlets to deflect and redirect enemy attacks.
* BrilliantButLazy: Is an undeniably talented hacker and programmer, but also gets tired very easily and spends a lot of her screen time seemingly lazing around.
* CatchPhrase: "Ma, ma... (Yeah, yeah...)"
* ComicallySerious
* CurtainsMatchTheWindow: Has yellow hair and golden eyes.
* FrillyUpgrade: Vivid Yellow's costume is a fancy dress with a lot of frills. Out of all the other Vivids, she's the one that appears to look closest to the traditional MagicalGirl attire.
* {{Gainaxing}}: Visible in the intro, but most prominent on a [[ItMakesSenseInContext conveyor belt in Episode 6]].
* HairDecorations: Her yellow hair clips given to her by Wakaba. When they get swapped out for different ones during the modeling shoot in Episode 9, and she fails to find them again, Himawari panics, thinking she's lost them, but luckily Wakaba had already picked them up for her.
* HiddenBuxom: Is the most shapely and well-endowed of the four heroines, a fact well hidden by her baggy and loose choice of clothes.
* {{Hikikomori}}: She still technically attends class through her camera. It stemmed from an incident where a friend betrayed her trust. She eventually starts breaking out of her shell once Akane made a promise and kept that.
* HollywoodNerd
* LonersAreFreaks: Subverted by the end of Episode 4 but apparently played straight prior to that.
* MegaTwintails: Vivid Yellow has huge, loosely curled twin tails.
* MessyHair: Before meeting Akane and co, her hair was unkempt and her bangs went into her eyes (probably to show how she doesn't care much about her appearance).
* MsFanservice: The BeachEpisode makes it clear that she has the curviest body (and largest rack) of the main heroines, and Episode 9 shows that she's so good-looking she can't take two steps without being asked out and getting scouted by photo magazines.
* NoSocialSkills
* PerpetualFrowner
* PlayfulHacker: She does break into places where she shouldn't go, but solely out of curiosity/admiration for her target.
* SheCleansUpNicely: Even though she doesn't seem to care much about her personal appearance, a small amount of grooming from Wakaba makes her quite beautiful.
* SugarAndIcePersonality: She's very quiet and withdrawn, especially in her debut episode. A little time with the girls though proves that she's really nice and supportive behind the reserved exterior.
* TeenGenius: A skilled enough hacker to break through Kenjiro's security systems, and has even written her own commercially-available programs, all at the tender age of fourteen.

!!Rei Kuroki
->Voiced by: Creator/MaayaUchida

A quiet, reclusive girl who happens to be in the Vivid girls' class. In reality, she works for the Alone by firing arrows that transform them into more vicious forms, and even then she has no choice in the matter, being forced to work for an entity called "The Crow" if she wants to resurrect her parents.
* AloofDarkHairedGirl: She has long dark hair, pale skin, and has an aloof, standoffish personality.
* ApocalypseMaiden: [[spoiler:She's a living beacon for the Alone, and killing her would destroy the world.]]
* AnimalMotifs: Birds of all types. Gulls flock around her. Her only real friend seems to be a parakeet. She works for the Crow, albeit reluctantly.
* BadassNormal: Subverted. She can't transform and her only power seems to be to power up Alones. [[spoiler:That doesn't stop her from assaulting a heavily guarded compound single-handedly with just the weapons she looted on the spot.]] Her heightened physical abilities are later explained as stemming from the fact that [[spoiler:she's actually from a different universe. Kenjirou theorizes that slight differences in the laws of physics in her native universe translate to enhanced abilities in the current one.]]
* BrokenBird: Slightly ironic given her bird motif.
* ButNowIMustGo: [[spoiler:Her world is restored by the mysterious beings that sent the Alone after the Crow is destroyed by her and Akane in [=VividRed=] form.]]
* CurtainsMatchTheWindow: Dark purple/black.
* DarkAndTroubledPast: [[spoiler:Her ''entire world'' was destroyed in an accident related to the Manifestation Engine, and was forced to take orders from the Crow if she really wants to see her parents or anyone in her world again.]]
* DarkMagicalGirl: Fits the archetype, [[spoiler:but her package doesn't seem to come with the powers]].
* TheDragon: [[spoiler:To the Crow, unwillingly.]]
* EeriePaleSkinnedBrunette
* {{Expy}}: An almost-blatant allusion to [[Anime/PuellaMagiMadokaMagica Homura Akemi]] in terms of appearance and personality, as well as [[Franchise/LyricalNanoha Fate Testarossa]] [[spoiler:motive-wise]].
* FriendToAllLivingThings: She shown to be friendly towards animals, feeding seagulls and freeing a hermit crab from a glass bottle. [[spoiler:[[NiceGuy And not limited to animals, actually.]] It's just that The Crow states that [[JerkassFacade she had to refrain from making contacts with other humans.]]]]
* HumanAlien
* JerkWithAHeartOfGold
* LonersAreFreaks: Not that it's going to stop [[GenkiGirl Akane]] from trying to be friendly to her.
* MinorLivingAlone: She lives alone with her pet parakeet in her apartment complex because her parents died in an accident.
* PowerTattoo: She bears a mark of feathers on her neck, which indicates how many arrows she has left to fire, and she will allegedly disappear when she uses her last arrow.
* PurpleEyes: She has violet eyes and [[spoiler:she comes from another world]].
* TheQuietOne
* ScarfOfAsskicking: Almost ''always'' wears a scarf. Even in her bikini. Justified, in that it hides the mark of the crow. [[spoiler: In the finale she gives it to Akane as a reminder of their friendship before she returns to her restored world.]]
* SwallowedWhole: [[spoiler:She gets swallowed by the Crow. She got better, fortunately.]]
* TragicKeepsake: Her key, which she uses as a necklace, is the only memory she has of her deceased parents.
* UnwittingPawn: [[spoiler:She's unknowingly being used by the Crow for its evil plans.]]
* WhenSheSmiles

!!Kenjirou Isshiki
->'''Voiced by:''' Creator/MasakiTerasoma

Akane and Momo's grandfather who is secretly a disgraced scientist and a developer of the Manifestation Engine. Following an accident following the completion of the Vivid System his consciousness is transferred to a stuffed otter named "Uso" while his body is stored in a refrigerator.
* CassandraTruth: Tried to warn the world of the Alone. They didn't listen, and in a few years they ''did'' come.
* CoolOldGuy
* DirtyOldMan
* IgnoredExpert: Nobody believed his prophecy of the Alone's arrival. He was declared a pariah from the scientific world, and he began working independent of government funding, which more often than not dries up his family's funds.
* MadScientist: As he proudly [[LampshadeHanging lampshades]].
* WeaselMascot: The result of an unfortunate bit of body-switching. [[spoiler: He gets better.]]

!!Momo Isshiki
->'''Voiced by:''' Creator/AsukaOogame

Akane's fifth-grade younger sister who handles her family's expenses.
* CurtainsMatchTheWindow: Pink hair and peach eyes.
* FoolishSiblingResponsibleSibling: She is in fact more level headed, responsible and mature than her big sister.
* GirlishPigtails
* IdiotHair
* NiceGirl
* OnlySaneWoman: Since Akane and grandpa always do things their way, she really shines in this role.
* SupremeChef
* TokenMiniMoe
* WiseBeyondTheirYears: Serves as de facto housekeeper for both her grandfather and older sister.

!!Mizuha Amagi
->'''Voiced by:''' Creator/HarukaYamazaki

An officer for the National Defense Forces (NDF) who also doubles as Akane, Aoi, Wakaba and Himawari's homeroom teacher at New Oshima Academy.
* GoodLookingPrivates
* HotTeacher
* TheTeamBenefactor: As far as Akane and friends care, she is the face of the government.

!!Yuuri Shijou
->'''Voiced by:''' Creator/MikaDoi

Management bureau head of the Manifestation Engine and an old acquaintance of Kenjirou.
* BigGood
* CoolOldLady

!!Mashiro Isshiki
->'''Voiced by:''' Sakura Nakamura

Akane and Momo's mother who remained hospitalized several years after the accident that killed her husband and triggered Akane's acrophobia.
* IllGirl: Well... ill woman. At the end of the series, she becomes well enough to leave the hospital and go home.
* MotherlySidePlait: Like most Anime/Manga mothers, she possesses one. She doesn't [[SubvertedTrope die from the accident but instead she survives from it.]]
* OlderThanTheyLook: Looks more like Akane's older sister than her mother.

!!The Crow
->'''Voiced by:''' Creator/MieSonozaki

A mysterious bird that seems to have Rei work for her to have the Alone destroy the Manifestation engine.
* AboveGoodAndEvil: [[spoiler:States that it's merely the Alone's messenger, though by Episode 11, it [[SubvertedTrope starts to show its true colors]].]]
* AbusivePrecursors
* AGodAmI: After [[spoiler:swallowing Rei and absorbing her remaining arrows, the Crow decides that it's the most powerful being not just in this universe, but in ''any'' universe.]] It stops ''just'' short of calling itself an actual god, but the feeling is there.
* AmbiguousGender: Despite being voiced by a woman, the Crow is not stated to have any gender.
* ApocalypseHow: [[spoiler:Attempts a Universal Class 5, and nearly succeeds until [=VividRed=] stops it.]]
* BeamSpam: [[spoiler:In OneWingedAngel form.]]
* BigBad: [[spoiler:The leader of the alien forces known as the Alone.]]
* CreepyCrows: Especially with its glowing red eyes.
* DevourTheDragon: [[spoiler:Literally swallows Rei.]]
* DrunkOnTheDarkSide: After [[spoiler:swallowing Rei and absorbing her remaining arrows]].
* EldritchAbomination: Especially after [[spoiler:[[SwallowedWhole EATING Rei]].]]
* EvilIsHammy: [[spoiler:After eating Rei whole, the Crow gets a bit too DrunkOnTheDarkSide.]]
* EvilLaugh: [[spoiler:Goes completely insane with power after absorbing Rei's arrows.]]
* EvilSoundsDeep: Has a very dark and deep, yet still rather feminine voice actress.
* {{Expy}}: This creature is like an evil(er) version of ''Anime/PuellaMagiMadokaMagica'''s Kyubey.
* FacelessEye: [[spoiler: In OneWingedAngel form.]]
* GlowingEyesOfDoom: Its eyes glow whenever [[spoiler:it tortures Rei]].
* {{Jerkass}}: Outright malignant, manipulative and [[KickTheDog an unrepentant dog kicker]].
* KarmicDeath: [[spoiler:Meets its end at the hands of the very girl it used as its instrument of destruction and the Earthling who gave back her humanity.]]
* ManipulativeBastard: [[spoiler:It manipulates Rei into assisting the Alone in targeting the Manifestation Engine with the promises of restoring her destroyed world and reuniting her with her parents.]]
* MovingTheGoalposts: [[spoiler:Regarding the apparent HumanityOnTrial.]]
* NoNameGiven
* OmnicidalManiac
* OneWingedAngel: [[spoiler:After Eating Rei, it turns into an EldritchAbomination with six black wings.]]
* RedEyesTakeWarning: Its eyeballs seem to be completely red. They also [[GlowingEyesOfDoom start glowing]] whenever [[spoiler:it uses its power to torture Rei]].
* TurnedAgainstTheirMasters
* UnreliableExpositor: [[spoiler: It claims that there is no way to pass test administered by the "supreme beings" it serves, and states that they wanted the Earth destroyed regardless of what humanity does. It then proceeds to act on it by devouring Rei and becoming a OneWingedAngel. This is later proven false when the "supreme beings" leave Earth in peace and restore Rei's world, suggesting that it has gone renegade and decided to act on its own accord, independently from the directive of the "supreme beings". This may possibly mean that everything else it says, such as Rei having to refrain form contact with other people, and dying if she ever uses up all of her arrows, is false and designed to manipulate Rei and the other characters.]]
* VoiceOfTheLegion: [[spoiler:In OneWingedAngel form.]]
* WalkingSpoiler: Episode 11 sends it into this trope in regards to the story.