!!Elphaba Thropp
* {{Adorkable}}: In the first act of the musical. Oh, she's got a biting tongue alright, but she's also socially awkward and her attempts to interact with people, as well as her mannerisms when excited, come off as rather endearing.
* AntiHero: In the book, Elphaba is actually okay with innocent people being hurt while she's furthering her cause, and ends up going mad. Less so in the musical where she's more a HeroWithBadPublicity.
* BeautifulAllAlong: Depends on the version.
** In the book it was stated that she had a long pointed chin, a rather mannish jaw, and Fiyero commented that she seemed to have a strange scar near her genitals. And that was before she went utterly insane and stopped sleeping all together, she probably looked like hell by then. Despite this, there are still indications that she's still rather good-looking, in an unconventional way -- her nose, while strong, is described as lovely, and both Galinda and Fiyero tell her she's pretty at separate points. Galinda even goes on about Elphaba's beautiful hair, and says that there's an "exotic" type of beauty about her after a mini-makeover. Elpahaba is described as looking like her mom, but with green skin, at least once in the books.
** In the musical, she only calls Elphaba pretty after "Popular", after she's Galinda-fied her with a flower and better hairstyling. Fiyero in the book refers to her as being "beautiful in her own way", meaning she's not conventionally attractive, and in the musical he finds her beautiful because he's "looking at things differently", which can be taken in multiple ways. The makeup designer flat-out states that "Elphaba is not ugly -- she's supposed to be beautiful. People just hate her because she's green." Notably, her ensemble changes entirely for the latter part of the play, as she drops the bulky boots, glasses and drab school outfit and switches to an extravagantly crafted black gown instead.
* [[BigBrotherInstinct Big Sister Instinct]]: She loves her little sister dearly. One of her early [[BerserkButton berserk buttons]] was being separated from Nessa.
* CallingTheOldManOut: ''[[CrowningMusicOfAwesome Defying Gravity]]'' in the musical. Her role after the same moment in the book as well. [[spoiler: Although, she never actually learns that the Wizard is her biological father.]]
* [[spoiler:ChildByRape]]: In the book, at least. In the musical, it could be interpreted as both parts getting drunk/having a mutual love affair.
* DarkIsNotEvil: She may wear dark-colored clothes almost exclusively, have black hair, and seem Gothic, but she cares about her sister, Animals, and her anthropomorphic teacher and desperately wants to do good. This eventually leads to her VillainousBreakdown.
* DeadpanSnarker: She gets most of the best lines, in book and play.
* DefrostingIceQueen: Though it wasn't intended as the good deed that it was seen as ([[NoGoodDeedGoesUnpunished and it ends up backfiring]] ''[[NoGoodDeedGoesUnpunished spectacularly]]'' when it turns out [[spoiler: that Nessa's a total {{Yandere}}]]), Galinda setting up Boq and Nessarose turned out to be the key to unlocking Elphaba's softer side, and the relationship between the two roommates changes almost instantly, at least in the musical version.
* DisneyDeath: In the musical. [[spoiler: She only fakes being melted, actually falling down a trap door, and escapes Oz with help from Fiyero, although the two can never return.]]
* EmotionallyTongueTied: In the Lion cub scene, Elphaba is so bewildered by the situation she starts blabbering frustratedly to Fiyero.
* EvilLaugh: Depending on the actress portraying her, she's had that distinctive cackle from as far back as her schooldays. Nearly all versions have her develop it by the time she's become infamous.
* FlowerInHerHair: Galinda puts one in her hair to show she can be pretty. Elphaba is so shocked by seeing herself as something other than repulsive, she runs off.
* FriendlessBackground: She grew up shunned and isolated. Glinda becomes her first friend.
* [[GreenSkinnedSpaceBabe Green Skinned Oz Babe]]
* HairTriggerTemper: She tries to keep it under control, but it really does not take much to get Elphaba sniping and shouting at those around her, and we see her temper ''literally'' explode several times over the course of the story. No doubt she became this way through having to constantly deal with peoples stares and jeers.
* {{Hermaphrodite}}: Book Elphaba is strongly implied to have been born mildly intersex [[spoiler: despite successfully giving birth to a son later]], and suffer from some degree of gender dysphoria. Besides her "mannish" features, she occasionally seems to get a little confused about what equipment her body is "supposed" to have.
* HeroicBSOD: The musical [[NoGoodDeedGoesUnpunished gives her a truly]] '''[[NoGoodDeedGoesUnpunished epic]]''' [[NoGoodDeedGoesUnpunished breakdown.]]
** In the book when [[spoiler:Fiyero dies]] Elphaba goes into a coma, takes a vow of silence, and lived in a mauntery for almost a ''decade''.
* HeroWithBadPublicity: Musical Elphaba is this without a doubt. Book Elphaba however is more prone to morally questionable actions and is more along the lines of AntiHero.
* HollywoodNerd: She gives off this image in her initial appearance, being a bookish girl who wears glasses and doesn't concern herself with trying to improve her appearance.
* [[spoiler: HumanMomNonhumanDad]]: [[spoiler: Well, her father IS human, but he's not an Oz native like her mother is. The fact she was born of parents from "two different worlds" was said to be the reason she was so magically gifted. Also, the tonic the Wizard had in his possession and implied to be his own creation was apparently responsible for her coloring.]]
* InSeriesNickname: Glinda calls Elphaba "Elphie". In the book, Nessa calls her "Fabala", and Fiyero gives her the nickname "Fae". Many fanfictions based on the musical still have both give her their respective nickname.
* KnightInSourArmor: In the musical. She keeps fighting for what she believes is right even though she doesn't think it makes much difference.
* LonersAreFreaks: The attitude towards her in college. With more than a little not-so-FantasticRacism on the side.
* MagicMisfire: Elphaba causes these far more often than she'd like. Most notably, [[spoiler: her messing up an invulnerability spell in her panic and desperation to save Fiyero from being beaten to death, which ultimately turns him into a scarecrow.]]
* {{Meganekko}}: In her days at Shiz in the musical. She loses the glasses during the timeskip between acts I and II.
* MotorMouth: If riled up, Elphaba can get into passionate rants where no one can get a word in edgewise. Fiyero points this out to her once.
* NotEvilJustMisunderstood: In the musical, this is definitely the case. In the novel, this is debatable, especially early-on.
* NotGoodWithPeople: Type two. She is very snarky, has a hard time expressing her feelings and seems to get along much better with Animals and animals.
* PimpedOutDress: Her dress in the second half is pretty fancy. An early version had some ruffles and netting. The final version has lots of beaded detail, but to make the dress look like patchwork when seen from a distance rather than decorated.
* PowerIncontinence: Elphaba is powerful for sure, but she... doesn't have the best command over her magic abilities. She can make things happen that many can only dream of doing, but aside from enchanting her broom to fly, we never see her cast a spell that exactly has the outcome she desires. This may have something to do with how her magic often reacts to her emotional outbursts.
** Even the broom wasn't intentional. She and Glinda expected her to grow wings like the monkeys.
* RealityWarper: Implied, discussed and exhibited on one occasion. She seems to be able to make things happen unconsciously, without even thinking them.
* RebelliousSpirit: In the book, she's almost rebellious for the sake of it -- she insults almost everybody. In the musical, she becomes this once she meets the Wizard and realizes the depth of his corruption, declaring "I'm through with playing by the rules of someone else's game." and "I'm through accepting limits 'cause someone says they're so / Some things I cannot change, but till I try I'll never know!" She then begins her "campaign of terror."
* SanitySlippage: To different degrees in the musical vs. the book after [[spoiler: Fiyero's death]] causes her to snap. In the musical she becomes unhinged and decidedly irrational in her actions but eventually recovers when a visit from Glinda, and [[spoiler: news that Fiyero managed to survive as the Scarecrow,]] helps bring her back down to earth. In the book she goes flat out insane.
* {{Seer}}: Seems to have this power in the musical; When she's envisioning in her head what her life would be like working with the Wizard, she predicts the fact that there will be a celebration all to do with her. (though she doesn't predict that said celebration will be her ''funeral''.) She also senses her sister is in trouble upon seeing Dorothy's flying house.
* TheSnarkKnight: Eventually, in the musical. She's sarcastic and introverted from the start, but at first, she has a distinctly idealistic streak ("The Wizard and I") - after "Defying Gravity", she evolves into a genuine, cynical Snark Knight.
* SparedByTheAdaptation: [[spoiler: She dies in the novel, but survives in the musical. See DisneyDeath.]]
* SugarAndIcePersonality: She's outwardly snarky and standoffish, but she shows her warmer, compassionate side towards Animals, her sister, and people show grows fond of like Glinda and Fiyero.
* ThenLetMeBeEvil: In ''No Good Deed''.
* TomboyAndGirlyGirl: The Tomboy half. Elphaba is strong-headed, pragmatic, and has no interest whatsoever in gushing over things like makeup and clothes. She's also not afraid to get her hands dirty for her cause.
* TragicVillain
* TraumaCongaLine: Not even counting what went down in the ''first act'', Elphaba has to deal with her beloved little sister not wanting to have anything to do with her anymore, saving the life of [[spoiler: Boq by turning him into a tin-man]] who forever resents her for it thereafter, her favorite teacher [[spoiler: losing his ability to speak human language]], her [[spoiler: sister]] getting ''murdered'', getting into a nasty spat with Glinda that puts them at odds with each other, and finally, watching [[spoiler: Fiyero]] be dragged off to be killed because of her, all the while being collectively despised and hunted for by the populace. Can anyone really blame her for going off the deep end by the time Dorothy came around?
* {{Tsundere}}: Has traits of one in the musical. She's very vitriolic to almost everyone upon first meeting, but she gets awkward and sweet around people who she hopes to impress or who show her kindness. She even gets this textbook tsundere line:
--> ''Where is [Fiyero] anyway? [[SuspiciouslySpecificDenial N-not that I expected him to say goodbye to me...]]''
* TheUnfavorite: In both book and musical, her father heavily prefers Nessarose.
* UsedToBeASweetKid: Yes, the Wicked Witch of the West was once a friendly, sensitive young girl. She's less villainous in the musical, though.
* VillainProtagonist: Not so much in the musical where she never fully crosses the line to become a true villain, but the book has her genuinely going insane from all the failures of her life, making her into a very malevolent being by the time Dorothy shows up. She stops sleeping entirely, stalks Dorothy, kills a woman, threatens her former friends and when Dorothy and co. finally get to her castle, she's fallen into utter desperation. Very sympathetic, yes, but still quite villainous.
* VoiceTypes: Is a classic, prime example of a mezzo-soprano "Belter". Most Elphaba actresses in the musicals are graded (by the fans) on the quality of: the end notes of "The Wizard and I", the long "Fi-''yer-o-o-o-o-o!''" in "No Good Deed Goes Unpunished, and the end of "Defying Gravity", particularly the final line and the last belted "Ah-''aah-ahhhh''!"
* WellIntentionedExtremist: Book-verse, Fiyero calls her out on it. She's okay if "accidents" happen when trying to make her point.
* WoobieDestroyerOfWorlds: In the musical. No matter how hard she tries to do good in the world, it ends up blowing up in her face spectacularly, especially when her magical powers get involved. Eventually she hits her breaking point.
* WomanInBlack: Her preference for black clothing is established long before she becomes known as the Wicked Witch, mostly due to her belief that she otherwise "clash[es] with everything".

!!Galinda Arduenna Upland, Lady Chuffrey

* AlphaBitch: At first. She's more of a LovableAlphaBitch afterwards.
* BookDumb: At least, compared to Elphaba. More so in the musical than in the books.
* CharacterDevelopment: In the book Galinda starts of as rather vapid and shallow. But after meeting Elphaba, along with Dillamond's death, she realizes there's much more important things to worry about besides boys and popularity.
* ClingyJealousGirl: In the musical. Fiyero suddenly running off with Elphaba causes Glinda to feel a dark enough jealousy that she gives Morrible information to lure out Elphaba that culminates in the death of [[spoiler: Elphaba's sister.]]
* CoolCrown: In the play, she gets a couple tiaras with her outfits.
* DelusionsOfEloquence: A little bit in the play, though not nearly as severely as Madame Morrible.
* TheDitz: In the musical, although she gets better. In the books, she's actually very intelligent and capable.
* GenkiGirl: In the musical, especially during the "Popular" and "One Short Day" scenes.
* HeelRealization: In the musical, at the Ozdust Ballroom.
* HiddenDepths: In the fourth book, she protects Rain, who is working as a maid in her household. This appears to be an afterthought on her part - when forced to release most of her staff, she chooses Rain to spite her other maid - but she gradually realizes Rain's magical potential and enlists her aid in casting a spell. The HiddenDepths is proven at the end of the book, when it's shown that [[spoiler: Glinda knew exactly what she was doing the whole time, and even raised Rain like a parent before it became dangerous to do so]].
* IncomingHam: Her first appearance in the flashback is her gliding onto the stage (thanks to sitting on a luggage cart), while singing several high notes.
* IneptMage: Early on she qualifies. She gets better. She's the only one of the girls who actually has a formal education in magic in the books, and is not capable of doing many impressive things with it, though by the standards of Ozian society, she is actually very talented (In the sense that she doesn't accidentally set things on fire).
** This gets shown in the musical when during the "Popular" number, she tries to do GorgeousGarmentGeneration for Elphaba, and nothing happens. She just tosses the wand away.
* InnocentlyInsensitive: Glinda lacks tact and humility about her status in life (exemplified in her "Popular" number), but she never means to flaunt it maliciously in other peoples faces, it's just how she is. Comes with being SpoiledSweet.
* KickingAssInAllHerFinery: Beautifully {{parodied| trope}} when Glinda and Elphaba start slapping each other just before the {{Catfight}}. After the second slap, Glinda, wearing her bubble dress and tiara, starts flipping her wand around like a kung fu staff, in a display that falls under WhatTheFuAreYouDoing.
* LargeHam: The role practically calls out for this, especially compared to the more dour and sarcastic Elphaba. The song "Popular" is often the benchmark for any actress playing G(a)linda, as it involves a lot of hopping around, dancing, yodelling, and often bits of improvised comedy unique to that actress. Most later actresses took Kristin Chenoweth's performance and ''built'' on it, creating a series of zanier Glindas.
* LightIsNotGood: Partially subverted later. She may be pretty and popular, but she is vain and too dumb to realize what the Wizard had done. She redeems herself in the end.
* LockedOutOfTheLoop: In the musical.
* MysticalHighCollar: Her "bubble dress", which is after she finally learns magic, has a high collar.
* NiceHat: She wears a number of fancy hats.
* PimpedOutDress: She gets the most CostumePorn in the play, with loads of very fancy dresses.
** Her "bubble dress" (at the beginning and end) and her engagement party dress have lots of beading and sequins, and a skirt with the layers cut to give a flower petal effect.
** A Denmark production has different, but no less fancy, costumes. Her bubble dress has a bodice covered with beading to look like pearls, white OperaGloves, and [[FluffyFashionFeathers a white feather skirt]].
** Even in the book, she's described as wearing all sorts of extravagant dresses after becoming Lady Chuffrey.
* PinkMeansFeminine: She loves to wear pink. She later becomes the WomanInWhite.
* ThePollyanna: Or she's just [[AlternateCharacterInterpretation really good at acting this role.]]
* PuppetKing: Glinda's "Good Witch" title doesn't actually give her any power, as Madame Morrible explains to her during "March Of The Witch Hunters".
* SpoiledSweet: Once she stops her mean streak towards Elphaba.
* StepfordSmiler: Indicated in the novel ''Wicked'', developed in the sequel, ''Son of a Witch''. The musical makes her a Stepford Smiler at the behest of the state for the sake of keeping the populace blissfully unaware.
* [[ThatManIsDead That Woman Is Dead]]: Borderline parody when she changes her name from Galinda to Glinda in the play. Played much more sympathetically in the book.
* TomboyAndGirlyGirl: The girly girl half. Glinda is the epitome of stereotypical girly girl, being obsessed with pink, boys, clothes, makeup and parties.
* ValleyGirl: Some actresses give her moments like this, particularly during "Popular".
* VanityIsFeminine: Galinda is vain for a majority of the time, but mainly [[RuleOfFunny in ways it's funniest]].
* VoiceTypes: A soprano -- the role in the musical was written for KristinChenoweth. Many notes were added (at her request) to the opening number just so she could hit some high notes.
* WordOfGay: In the book according to the author. The book barely tries to hide that she's probably in love with Elphaba when she cuddles together with her "for protection". It helps that she [[GoldDigger married for money]] in the book. Though she did genuinely care for him, she had no romantic love for her late husband.
** {{Bi The Way}}/{{If Its You Its Okay}}: Musical Glinda was definitely in love with Fiyero, but more than one of Glinda's actresses have implied she had romantic feelings for Elphaba as well.

!!Fiyero Tiggular/Tigelaar

* {{Adorkable}}: Shows shades of this. Mostly once he starts falling in love with Elphaba.
* ArrangedMarriage: In the book he is arranged to be married when he is in Shiz. He ends up marrying her and having three children with his wife. That doesn't seem to stop him from having some "fun" with Elphaba in the Emerald City, as it's generally a loveless union. In the musical he ends up engaged to Glinda without being consulted about it first, and then promptly breaks it off when Elphaba shows up.
* BigDamnHeroes: He saves Elphaba from the Wizard and they run off together. He does this a second time (coming in swinging on a vine no less!) but with mixed results; Elphaba escapes, but he gets captured.
* BrainlessBeauty: Self-stated. He perpetuates this image so much that people actually become worried when he starts "thinking".
* TheCasanova: Apparently this was the general perception of him. To quote Galinda, "his reputation is scandalacious"
* CompositeCharacter: In the Musical he's a mix of Book Fiyero (with his name, position of Prince, and role as Elphaba's love interest), while his personality is more along the lines of Avaric (and possibly Crope and Tibbett) taken UpToEleven. [[spoiler:Also he actually ''is'' the Scarecrow in the musical, whereas in the book, Elphaba entertains the possibility that he never died and was hiding in that Scarecrow suit only to learn that the Scarecrow is nothing more than a Scarecrow.]]
* CoolShades: In his first appearance in the musical.
* CrashIntoHello: Sort of, in the musical. He was asleep at the time, but his first meeting with Elphaba is instigated by his carriage nearly running her over.
* CrucifiedHeroShot: In the musical, him getting hoisted onto a pole with his arms stretched out and being carried into a cornfield to be tortured is the last we see of him. [[spoiler: Or so we think.]]
* DeadpanSnarker: He's no match for her, but Fiyero does have his share of witty remarks that will occasionally catch even Elphaba off guard.
* {{Delinquent}}: He pretty much brags about how he's been kicked out of several different schools at the beginning of "Dancing through Life".
* DisneyDeath: [[spoiler: In the musical, he fakes his death and helps Elphaba to escape while at the same time FakingTheDead.]]
* TheDitz
* [[spoiler:EmergencyTransformation: He's the musical's version of the Scarecrow through this, through Elphaba's slightly botched invulnerability spell she tries to cast to save him from being beaten to death (she doesn't find out it actually worked until much later).]]
* EmotionallyTongueTied: He starts tripping over his sentences when he finds himself taking notice of Elphaba.
* FormFittingWardrobe: The tight, white pants that Fiyero wears in his introduction are considered infamous by his actors and the show-goers alike.
* FunnyForeigner: He first comes off as this in the book.
* TheHedonist: Initially, his life motto is to live life however the hell he pleases. He eventually outgrows it.
* HiddenDepths: So hidden that Fiyero HIMSELF was convinced of his shallowness. Elphaba calls him out on it.
* HiddenHeartOfGold: Turns out he's not so self-absorbed after all.
* InSeriesNickname: In the book, Elphaba calls him "Yero, my hero" at one point. Fanfiction authors often have her still give him the nickname "Yero" in musical-based work.
* IronicEcho: When they get together, Fiyero has to convince Elphaba that he thinks she's beautiful. [[spoiler: At the end of the musical when Fiyero has been turned into a scarecrow, it's Elphaba who has to convince ''him'' that she still thinks he's beautiful.]]
* IWillFindYou: His motivation for joining the witch-hunting Gale Force is to find Elphaba before anyone else does.
* [[spoiler:KilledOffForReal]]: But only in the book.
* LadykillerInLove: In the musical, he gets basically the entire female population of Shiz University pining after him within hours of arriving on campus and he instantly hooks up with G(a)linda. Then he falls in love with Elphaba so hard that his life thereafter is spent trying to find her after she disappears from the public eye.
* [[spoiler: TheLostLenore: For Elphaba, as it is his death that triggers her descent into wickedness. Played straight in the book, but subverted in the musical where at the end he turns up alive as the Scarecrow.]]
* LoveAtFirstSight: How he ends up in a relationship with Glinda in the first place, because they mutually deemed themselves to be "perfect together" upon first meeting. Of course, it doesn't end up lasting...
** Arguably he developed an interest in Elphaba the moment he met her. He just didn't realize it until later.
* LoveInterest: To Elphaba (and also Glinda in the musical).
** SatelliteLoveInterest: Subverted. A lot of Fiyero's character does revolve around his relationships with Elphaba and Glinda, but unlike most examples he plays an important role in the plot, and goes through his own CharacterDevelopment arc.
* SafetyInIndifference: His reason for having such a lackadaisical approach to life. Just look at the lyrics to "Dancing Through Life":
--> ''Life is painless for the brainless''
* NonActionGuy: Compared to Elphaba and Glinda, he comes off as this.
* RaceLift: He was dark skinned and covered in diamond tattoos in the book. In the musical, he has no determined physical features and his appearance relies on the person who's acting him. There have been Fiyeros of all colors on stage.
** PragmaticAdaptation: When the musical was in its concept stages they considered keeping the tattoos, but then decided it would be too much of a hassle to deal with.
* RoyalsWhoActuallyDoSomething: He's a prince, and by the second act of the musical, certainly not an idle one, considering he joins the Gale Force and actively participates in Oz's Witch hunts (if only to protect Elphaba from everyone else trying to kill her).
* SparedByTheAdaptation: [[spoiler: He and Elphaba die in the book.]]
* StepfordSmiler: In the beginning of Act II, he, like Glinda, puts on a facade that he's enjoying his life and being against the Wicked Witch of the West, when the truth couldn't be further in the opposite direction.
** Even in Act I when they're in school, it's heavily implied Fiyero's devil-may-care attitude is a coverup for the fact he's unhappy.

!!Nessarose Thropp
* ChurchMilitant: In the book.
* ClingyJealousGirl: Musical only, as seen below:
-->"You're going to lose your heart to ''me,'' I tell you! Even if I have to...I have to...'''[[spoiler:magic spell you!!!]]"'''
* CruelMercy: In the book a Munchkin asks her to enchant a woodsman's ax so that it would kill him when he swings it. She said this would be cruel, so instead she enchants it so it simply cuts off his limbs. And thus the tin woodsman is born.
* DisabledLoveInterest: In the musical she was a lovely young girl in a wheelchair. Less so in the book, where she was a zealous girl who had functioning legs, but no arms to speak of, which puts a damper on finding love.
* [[DroppedABridgeOnHim Dropped A House On Her]]: Though it was kind of necessary, since it's a ForegoneConclusion from the original story.
* TheFundamentalist
* IneptMage: A truly tragic example in the musical, when she gets her hands on the [[GreatBigBookOfEverything Grimmerie.]]
* LoveMakesYouCrazy: And ''how''.
* SuperWheelChair: In the musical she eventually ends up with a fancy wheelchair that resembles a throne.
* [[spoiler:ThrowingOffTheDisability]]: Thanks to the [[spoiler:magic slippers (that Dorothy later obtains)]].
* [[spoiler:{{Yandere}}: At least in the musical, where she is willing to strip the Munchkins of their rights and keep any of them from leaving the country just to keep Boq with her and then curse away his heart when he expresses the desire to leave.]]

!!Boq
* AdaptationDistillation: He has a whole portion of the book devoted to him, yet is at-best a side character in the musical -- he doesn't even get a whole song to himself, just small bits of other people's songs.
* {{Adorkable}}: Especially around Glinda. [[spoiler: Then he's turned into the Tin Man...]]
* AllLoveIsUnrequited: Musical only. He loves Galinda, who won't give him the time of day. Nessarose is absolutely '''smitten''' with him, but he doesn't feel much more than sympathy for her, which decreases rapidly as time goes on.
* DoggedNiceGuy: In the book he pursued Galinda for quite a while during his time in school. But eventually she set the record straight that it would never work out, and he gave up when she became more serious, and he grew up a bit.
* [[spoiler:EmergencyTransformation: He's the musical's version of the Tin Man through this, after Nessa magically curses away his heart in a fit of jealousy and Elphaba in panic tries to save him.]]
* TheEveryman: In the book, he's a defining "this is what normal people are like" character, compared to the snobby Galinda (and her friends), sullen and sarcastic Elphaba, and whacky frat boys Avaric, Crope and Tibbett.
* {{Flanderization}}: His crush on Galinda he has for a summer or two in college becomes the defining character trait of his whole life in the musical.
* HappilyMarried: In the book he winds up living a happy, yet mundane, life as a farmer, father, and husband.
* StalkerWithACrush: In the musical -- Glinda's clearly not interested, and he still wants to break up her engagement ''years'' after they leave school.

!!The Wizard
* AdaptationalVillainy: Was merely a dishonest conman in the original stories, rather than an outright villain. More sympathetic in the musical, though.
* AffablyEvil: In the musical at least.
* AntiVillain: His goal in the musical is to keep his people happy and let them have what they want.
* BrokenPedestal
* {{Demythification}}: The only "magic" he knows is how human nature works and how to lean on it to get what he wants.
* DrivenToSuicide: Although only suggested in the book. He fails, however.
* TheFaceless: [[spoiler:In the musical, in his appearances as the object of Elphaba's mother's affair.]]
* [[FantasticRacism Fantastic Racist]]
* HeelRealization
* LukeYouAreMyFather: [[spoiler: Although Elphaba never finds out. The Wizard goes into something of a quiet VillainousBreakdown upon realizing that he's actually Elphaba's biological father, and thus basically sentenced his own daughter to death. Afterwards Glinda tells him to leave Oz and he goes willingly.]]
* ManipulativeBastard
* VillainWithGoodPublicity
* WellIntentionedExtremist: In the musical, he honestly ''wants'' to be "wonderful", but fails miserably. He reaches near JerkassWoobie levels when he realizes [[MyGodWhatHaveIDone the full extent of his failures.]]
* WrongGenreSavvy: In a way, as his trying to apply real-world logic to Oz is part of the reason everything ends up going wrong.

!!Madame Morrible
* AltoVillainess
* DelusionsOfEloquence
* [[FantasticRacism Fantastic Racist]]
* LargeHam
* [[TheManBehindTheMan The Woman Behind The Man]]: In the musical.
* SadistTeacher: To Galinda, and anyone else she deems as unworthy.
* VoiceTypes: Like most older female characters, she's an alto.

!!Professor Dillamond
* CoolTeacher: Well, Elphaba thinks so anyway...
* KilledOffForReal: In the book, [[spoiler:he is murdered on Madame Morrible's orders.]]
* MentorOccupationalHazard
* SatelliteCharacter: Despite mattering heavily to the plots of both book and musical (indeed; most of either story would have never happened without him), he actually doesn't appear a whole lot. Characters spend more time talking about him in absentia in the book, and he's only in one song in the play, and three scenes altogether.
* TalkingAnimal: [[spoiler: Which is the reason he ends up being the target of prejudice and the Wizard, as the Wizard doesn't like that animals in Oz can act like humans and wants to make them like normal animals in the "real" world.]]
* VerbalTic: A truly disturbing instance in the musical, [[spoiler: as he loses the ability to speak human language and starts reverting to animal noises]].

!!Dorothy
* TheAtoner: In the novel, [[spoiler:Dorothy was touted as the leader of the witch-hunters. Indeed, she sought out Elphaba under the pretense of planning to kill her, but in reality, all she wanted was to sincerely apologize to Elphaba for what happened to her sister.]]
* BrattyHalfPint: Some fans see her as this.
* ClingyMacGuffin: After being more or less conned into taking Nessarose's shoes, Dorothy finds that she can't take them off, even when she wants to give them to Elphaba.
* TheDogBitesBack
* GoodIsBoring: Liir's crush on her didn't last very long after leaving Kiamo Ko. He found that nice girls raised on a farm don't make for particularly interesting people.
** Not only that, but he finds there is something rather fake about all her goodness. Something that is commented on by several characters (but then again, [[InformedFlaw it never really comes up]]).
* HeroAntagonist: In the book, Elphaba's dress caught fire prior to the fateful bucket of water and Dorothy had just been trying to help put it out. In the musical, she is an antagonist due to lack of knowledge rather than malice.
* NaiveEverygirl: Dorothy doesn't really understand the complicated politics of Oz, which makes her a perfect UnwittingPawn for the Wizard.
* [[HeWhoMustNotBeSeen She Who Must Not Be Seen]]: In the musical. The most we get is a silhouette.
* UnwittingPawn: As mentioned above.

!!Liir
* AdaptedOut: He's not in the musical. Which is good, since he would have complicated things.
* BalefulPolymorph: Gets turned into an elephant in the fourth book, as a sort of callback to a spell he helped undo in the second.
* BiTheWay: He is in the center of a LoveTriangle with a man and a woman. Who may have fallen in love with each other, too, or died separately.
** In book four, it's revealed that [[spoiler:neither one died, and if they met they didn't hit it off. Liir ended up married to Candle because she was the mother of his daughter, but still in love with Trism although they didn't see each other for years. (This might make him AmbiguouslyGay, since while he seems to have regular sex with his wife they don't have much of a romantic attraction, something he and Trism enjoy in spades.) In the end, when Candle and Trism both leave him, he tells Rain he'd be happy if either or both of them would just come back.]]
* ContemplateOurNavels: He does a lot of this.
* TheDitherer: Seems to go out of his way to avoid making decisions until some tragedy forces him to. Taken UpToEleven in the fourth book, where his stubborn refusal to act in his own interest ends up [[spoiler: removing Mombey's spells on himself and two other characters]].
* IJustWantToBeNormal: Even after he finds out that he's the only one capable of riding the broom, the narrative still won't shut up about how unspecial he is.
* NonActionGuy / ActionSurvivor: Does surprisingly little, compared to his mom. He's more the type of guy stuff just ''happens'' to.
** That said, he certainly ''accomplishes'' quite a lot more than his mother, including missions he inherited from her failures.
* ProgressivelyPrettier: He is described as being fat in the first book, but second book onwards has him losing the weight and becoming lean, pale and dark-haired. Possibly justified in that he spent some time in the army and may have gotten into better shape during that time.

!!Yackle
* BornAsAnAdult
* CoolOldLady
* NeverMessWithGranny
* StealthMentor
* ReallySevenHundredYearsOld: Inverted. She looks ancient, but she was born old and pruny, she did live Elphaba's entire lifespan and beyond though.
* YoungerThanTheyLook

!!Brr, The Cowardly Lion
* CharacterDevelopment: Bordering on DynamicCharacter. He is very different in all periods of his life from what he was at the start of his life, through his journey with Dorothy, integration with human society, etc. etc. All this from a character who doesn't really move the plotline at all. [[spoiler:Although he ends the novels as ruler of Oz]]
* DeadpanSnarker
* TheQuisling: In the book. Sided with the humans during the subjugation of Animals. Regrets it. Sort of.
* IntrepidReporter: Kinda

!!Shell Thropp
* [[spoiler:AGodAmI: In the fourth book.]]
* [[spoiler:BigBad]]: Seems to be, if we take the three(four eventually) books as one story. Made confusing due to the below tropes.
* ChekhovsGunman
* WhoIsThisGuyAgain: He was only mentioned a handful of times in the first book, and completely cut out of the musical. Causing lots of people reading the second book to double take when remembering that yes, Elphaba had a brother.

!!Avaric
* AdaptedOut: Of the musical.
* CompositeCharacter: Makes up part of the "Fiyero" character in the musical.
* SatelliteCharacter: Really takes the role of "Boq's popular friend", and doesn't really matter a whole lot to the story.

!!Crope and Tibbett
* AdaptedOut: Of the musical.
* AmbiguouslyGay: They apparently tease Boq endlessly, but stop if he gets too upset about it.
* SatelliteCharacter: Both are essentially just there as Boq's schoolchums, though both play minor roles later on:
** Tibbett's experience in the Philosophy Club results in a rapid deterioration in his physical and mental health. Eventually he ends up a palliative care patient in the convent where Elphaba has resided since [[spoiler:Fiyero's death gave her a mental breakdown]], and it's in renewing their friendship and caring for him during the last months of his life that Elphaba is brought out of her years-long fugue state.
** Crope has a more minor role as Glinda's secretary in the latter half of the first book. He doesn't really do much and develops ChuckCunninghamSyndrome in the sequels, though.

!! Rain, aka Oziandra Osqa'ami
* HiddenInPlainSight: To protect her from the Emperor's forces, her parents [[spoiler: magically disguise her green skin]] and place her in Lady Glinda's household. When soldiers take over her estate and camp there for months on end, she remains unnoticed.
* HollywoodAutism: Averted. Rain seems to have a fairly realistic portrayal of high-functioning autism, though it is not named as such due to the lack of psychologists in the setting. She pays little attention to people, doesn't make eye contact, focuses on objects and animals, and is thought to be mentally challenged at first. As she grows, she learns how to better interact with people, largely through careful observation, and her intelligence gradually becomes evident.
* LoyalAnimalCompanion: Tay, a small "rice otter" that accompanies her for most of the book. It eventually turns green.
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