The protagonist of the game, our heroine is a kind girl who has lost her memories and must retrieve them with the help of Orion. Despite her story and the cause of her amnesia change depending on the route, in all of them she's a first-year university student and a maid at the "Maid to Shitsuji" Café.

->'''Voiced by:''' Creator/KaoriNazuka (anime) (Japanese), Maggie Flecknoe (English)
* AmnesiacHero
* AmnesiacLover
* AudienceSurrogate
* BreakTheCutie: [[spoiler: Not only does the heroine have to withstand harassment, getting injured, a coma and ''death'' in several universes, in Toma's route she spends most of the time inside a cage because supposedly "she'll be safer there".]]
* CanineCompanion: Had a dog named Kuro in Kent's route. [[spoiler: He dies after he's run over by a car, and it was the cause of her fight with Kent.]]
* ChildhoodFriends: With Shin and Toma.
* CoverIdentityAnomaly: A variation - she really is who she's "pretending" to be, but constantly flubbing details she's forgotten because of her amnesia.
* ExtremeDoormat: In Toma's route, [[spoiler: she's kidnapped, drugged and put into a cage by him; despite everything, she forgives him at the end, since both were in love with each other since the beginning.]]
* FlowerMotifs: She's usually symbolized by flowers, like in the air hockey minigame. She also wears roses in her hat and her blouse.
* HelloInsertNameHere: In the game.
* IllGirl
* KillTheCutie: The game has ''a lot'' of bad endings, and all of them end with her death.
* {{Meido}}
* NiceHat
* NoNameGiven: In the anime, she doesn't remember her name. In the game it's the only thing she remembers, but it must be chosen by the player.
* TheQuietOne
* ShrinkingViolet
* TooDumbToLive: Makes some pretty downright ''idiotic'' decisions during the anime/game, for instance [[spoiler: staying with Toma even after she learns he was drugging her and locking her in a cage.]]
* TheVoiceless: Barely talks in the game, only during choices and a bit at the end of the routes. Her lines aren't voiced either.


The boyfriend figure of the Heart world, Shin is a 17-year-old boy who is studying to get into university. Despite being quite rude, he always tries to do the best for the heroine. In every route (except his own) and the anime he works as a cook at "Maid to Shitsuji".

->'''Voiced by:''' Creator/TetsuyaKakihara (Japanese), Houston Hayes (English)
* BrutalHonesty: Extremely blunt and ''will not'' lie to spare the heroine's feelings.
* DeclarationOfProtection: To the heroine in his route.
* DisappearedDad
* JerkWithAHeartOfGold
* LuminescentBlush: Gets one whenever the heroine does something he finds cute.
* TheRival: With Toma.
* SpotlightStealingSquad: Despite the "true route" being [[spoiler: Ukyo's]], he gets the centre spot (and sometimes he's the sole boy to be featured) in the games' covers.
* {{Tsundere}}


The boyfriend figure of the Spade world, Ikki is a 22-year-old university student in his fourth year. The most popular butler at "Maid to Shitsuji", he even has a fanclub of girls who visit him everyday.

->'''Voiced by:''' Creator/KisshoTaniyama (Japanese), Creator/BlakeShepard (English)
* AffectionateNickname: Is called "Ikkyu" by Kent.
* BeCarefulWhatYouWishFor: [[spoiler: As a child, he wished to be popular. As a result, any woman who looks him in the eye falls in love with him.]]
* BlessedWithSuck: See BeCarefulWhatYouWishFor.
* TheCasanova
* ChickMagnet
* CoolShades: Wears them to try to keep his fangirls away.
* CurtainsMatchTheWindow
* EverybodyCallsHimBarkeep: His real name is Ikkyou, but everyone goes by Ikki.
* HairDecorations: He wears a spade-shaped clip.
* HypnoticEyes: How his Chick Magnetism works, and beyond his control. He has to wear sunglasses to avoid being constantly mobbed, which itself has only limited success.
* ILoveYouBecauseICantControlYou: In his route. See {{Be Careful What You Wish For}} entry above.
* InstantFanclub
* LadyKillerInLove: In his route.
* SoBeautifulItsACurse: Since (almost) everyone who looks into his eyes falls in obsessive love with him, he's extremely isolated from actual friendly interaction. Also, his InstantFanclub is a legitimate risk to what few friends he has.
* TechnicolourEyes: In the anime, his eyes are switched to a weird mixture of pink and blue.
* UnwantedHarem
* VitriolicBestBuds: With Kent.


The boyfriend figure of the Clover world, Kent is 25 years old and the heroine's tutor. He likes math problems and believes everything can be resolved by logic.

->'''Voiced by:''' Creator/AkiraIshida (Japanese), Tyler Galindo (English)
* {{Adorkable}}
* AffectionateNickname: Is called "Ken" by Ikki.
* AmbiguousDisorder: His complete lack of social skills seems to indicate this. Apparently, it's genetic.
* BelligerentSexualTension: With the heroine, prior to her amnesia.
* TheBigGuy: He's considerably taller than the other guys.
* BrutalHonesty: Doesn't see the need to sugarcoat things - it would be inefficient, after all.
* HugeGuyTinyGirl: Has to practically bow to kiss the heroine when standing.
* IKissYourHand: One of his [=CGs=] in the first game.
* LackOfEmpathy: What triggered his pre-game conflict with the heroine. He grows out of it over the course of his route.
* {{Megane}}
* NoSocialSkills: He has little clue of how to talk normally to people, as he always thinks through cold logic.
* SharedFamilyQuirks: Both of his parents share his ultra-rational outlook.
* SmartPeopleWearGlasses: He's the tutor of the heroine's study club and is shown to like puzzles and mathematic problems.
* TooManyBelts: [[http://img2.wikia.nocookie.net/__cb20130115223718/amnesia-anime/images/6/63/Amnesia_kent.png His usual outfit.]]
* VitriolicBestBuds: With Ikki.


The boyfriend figure of the Diamond world, Toma is a 20-year-old university student at his second year. He's also a butler at "Maid to Shitsuji", and cares deeply about the heroine.

->'''Voiced by:''' Creator/SatoshiHino (Japanese), Creator/ChrisAyres (English)
* BlondGuysAreEvil: [[spoiler:He's a major yandere to the heroine.]]
* ChildhoodFriends: With Shin and the heroine.
* CreepyShadowedUndereyes: [[spoiler: The most obvious visual cue that his {{Yandere}} tendencies have been triggered is when he suddenly has these.]]
* CurtainsMatchTheWindow
* GildedCage: [[spoiler:He thinks the cage he forces the heroine to live in is this: it's full of cute plushies he's specially bought for her, and he stills lets her go to the bathroom and wash herself as long as he keeps an eye on her.]]
* HairDecorations: Wears a black headband.
* HeroicSelfDeprecation: Professes that he's The Worst and has no redeeming qualities outside of his good looks.
* TheKindnapper: [[spoiler:Keeps the heroine prisoner having decided it's the only way to protect her.]]
* LyingToProtectYourFeelings: One of the main points of contention between him and Shin, re: how to treat the heroine. Toma will always lie if he thinks it will keep the heroine happy.
* TheRival: With Shin.
* WellIntentionedExtremist: [[spoiler:In his mind, he feels like he's this when he goes to great lengths to keep TheHeroine safe.]]
* {{Yandere}}: [[spoiler:To the Heroine.]]


The boyfriend figure of the Joker world. A 24-year-old photographer who seems to know the heroine, but remains distant in all the other routes.

->'''Voiced by:''' Creator/KoukiMiyata (Japanese), Patrick Poole (English)
* BeCarefulWhatYouWishFor:[[spoiler: He made a wish to (Orion's superior) Neil to save the Heroine's from death and for him to be able to be with her again at the cost of her not remembering him. The problem is that even if he [[IWantMyBelovedToBeHappy lets her be happy with another man]], the wish cannot be fulfilled and Ukyo remembers every world the Heroine dies by his hand or fell in love with another man and dies in her place because their existence in the same timeline is an anomaly.]]
* CameraFiend
* CreepyShadowedUndereyes: [[spoiler: When his evil side takes over.]]
* CrypticallyUnhelpfulAnswer: He ''wants'' to help the heroine, but whenever he tries to warn her he usually ends up just vaguely confusing and terrifying.
* CurtainsMatchTheWindow
* DespairEventHorizon: [[spoiler: Experiencing his own and the heroine's death for what could be years has brought him way beyond this]]
* EarnYourHappyEnding: [[spoiler: In his route, Neil leaves his body and grants Ukyo and the heroine a happy ending together.]]
* EvilEyebrows: [[spoiler: Usually has these when his dark side is "driving."]]
* FlipPersonality
* GroundhogPeggySue: [[spoiler: This is done by Neil as he needed Ukyo's wish to come true to gain back his powers after the conditions were fulfilled.]]
* ImportantHaircut: [[spoiler: Cuts his hair in the Wedding segment in ''CROWD''.]]
* IWantMyBelovedToBeHappy: In every other route except his own, [[spoiler: he dies to let the heroine have her happy ending with another man.]]
* JekyllAndHyde: [[spoiler:Ukyo, as a side effect of going through so many worlds where either he or the heroine died. His Hyde personality tries to constantly kill the heroine, but even then the personality still admitted he loves her.]]
* LongHairedPrettyBoy
* LoveMartyr: Literally.
* NiceHat
* NiceGuy: [[spoiler: When he is not trying to ruthlessly murder you.]]
* RapunzelHair
* SecretCharacter: His route is unlocked after finishing the other four. However, he appears in all of them as a side character.
* StarCrossedLovers: [[spoiler: Ukyo and the Heroine at a cosmic definition. One of them has to die as neither of them are suppose to exist together after the Heroine is fated to die from the injuries she sustained in her university's fire. Luckily, Ukyo's wish to Neil was granted when the Heroine survived after her fated death day in their original world and [[EarnYourHappyEnding was able to be with Ukyo.]]]]
* WalkingSpoiler: He was one of the major reasons why the Heroine has amnesia.


A spirit from the dream world who can only be seen and heard by the heroine. He thinks it's his fault that she lost her memories, so he helps her in that quest.

->'''Voiced by:''' Creator/HiromiIgarashi (Japanese), Creator/ShannonEmerick (English)
* AscendedExtra: Gets his own route in ''LATER''.
* AudienceSurrogate: Even more than the heroine!
* HornedHumanoid
* MissionFromGod: [[spoiler: He didn't meet the heroine by chance, as he was given the quest of finding his creator, the leader of the spirits Neil.]]
* NonHumanSidekick: Despite his human appearance, he's actually an spirit from the dream world.
* SpiritAdvisor


The heroine's best friend, a lively university student who studies at the same university as the heroine. She also works as a maid at "Maid to Shitsuji".

->'''Voiced by:''' Satomi Moriya (Japanese), Allison Sumrall (English)
* AmbiguouslyGay: At least in the anime. She visits the café in a route where she isn't an employee to flirt with the Heroine, seems a little betrayed when she likes Ikki (and may subtly be trying to influence her away from him despite not showing any interest in him herself, unlike Mine), and is really happy about the high female to male ratio on one of the trips. Some viewers who never got to play the game speculated that she may have been a GayOption.
* BookDumb: She seems to struggle with writing her report for university.
* GenkiGirl
* HairDecorations: Wears two flower hair-clips.
* TheKlutz: Tends to make mistakes in the routes where she works at Meido no Hitsuji and one of her transition CGs has her tripping with a cup of tea.
* {{Meido}}
* PassionateSportsGirl: She's in several sport clubs.
* TomboyAndGirlyGirl: The tomboy to Mine's girly girl.
* TomboyishPonytail


A co-worker of the heroine at "Meido to Shitsuji" and a bit younger than her. She has a bubbly personality and is also a member of Ikki's fanclub.

->'''Voiced by:''' Kana Akutsu (Japanese), Molly Searcy (English)
* CurtainsMatchTheWindow
* HairDecorations: Wears a butterfly decoration in her bun.
* LongHairIsFeminine
* {{Meido}}
* PinkMeansFeminine
* TomboyAndGirlyGirl: The girly girl to Sawa's tomboy.
* ValleyGirl: Talks like this in the anime's English dub.


The boss at Meido to Shitsuji. His most remarkable feature is that his personality changes on each route.

->'''Voiced by:''' Hidenori Takahashi (Japanese), Jay Hickman (English)
* AscendedExtra: Got his own route in ''LATER''.
* TheCasanova: In Shin's route.
* HairTriggerTemper: Ikki's route.
* {{Megane}}
* TheQuietOne: Kent's route.
* ReasonableAuthorityFigure: Toma's route.


She is the head of Ikki's fanclub. A sarcastic and aristocratic woman, her obsessive love for Ikki puts her at odds with the heroine.

->'''Voiced by:''' Yoshida Seiko (Japanese)
* AlphaBitch: [[spoiler: She becomes a {{Lovable Alpha Bitch}} in Ukyo's world thanks to being friends with the heroine.]]
* BlondesAreEvil
* CurtainsMatchTheWindow
* NiceHat
* {{Ojou}}: Implied to be one.