History Characters / OddSquadMobileUnit

-> Played by: Zion Thompson (Xuxa), Kaden May (Xuxo)

* GracefullyDemoted: Played with. Oppo proposes that if she and Over win, they will become part of the Mobile Unit department while Orla and Omar become part of the Investigation department. However, as the Mobile Unit department is lower in the Odd Squad hierarchy than Investigation, Oppo is pretty much aiming for her and Over to be ''demoted'' instead of promoted.

* TemporarySubstitute: As they are both part of the Odd Squad Backup Unit, being temporary substitutes is their job. Over replaces Oswald and Over replaces Osmerelda while they are out sick.

!!Villains
[[folder:The Shadow]]
!!The Shadow
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2020_06_01_screen_shot_2020_02_18_at_10_20_26_am_webp_webp_image_557_767_pixels.png]]
-> Played by: Zarina Rocha
The main antagonist of the first half of Season 3 who has a vendetta against Opal and the rest of OSMU.

* BigBad: Of Season 3.
* CainAndAbel: [[spoiler:The Cain to Opal's Abel. While she is cunning, manipulative, and evil, Opal is more kind-hearted and is working on the heroes' side.]]
* CoolMask: Wears one around her eyes.
* CreateYourOwnVillain: It's revealed that the reason she turned to villainy was because [[spoiler:Opal was far too overprotective of her.]]
* DarkIsEvil: Her outfit is predominantly black.
* DrivenByEnvy: She became a villain because she was jealous of Opal's status as TheAce and she knew that turning to villainy was one thing Opal would never do.
* EnfantTerrible: One of the most malicious kid villains in this series to date.
* EvilGenius: She always manages to stay one step ahead of the Mobile Unit up until "End of the Road". She even gets the idea to [[HoistByTheirOwnPetard use Odd Squad's own MO of teamwork against them by having every single villain in the world team up to destroy them.]] It's very telling that fans voted her as the Oddest Villain Ever on the show's Instagram's "Odd Villain Madness" event, beating out ''Odd Todd.''
* FaceHeelTurn: She ended up doing this due to Opal's behavior towards her.
* GadgeteerGenius: Is very apt with technology, and once successfully hacked OSMU's van. [[spoiler:In "Odd in 60 Seconds", she also manages to get to the mega-computer and extract info about every known villain worldwide, without anyone detecting her.]]
* HeelFaceTurn: [[spoiler:She ends up reforming in the Season 3 finale after Opal convinces her that she can do great things just like her. By the end, she leaves with Opal to fix the damage she caused in various countries.]]
* InvisibilityCloak: Dons one in "Odd in 60 Seconds".
* ItsPersonal: While she's not above attacking the Main 4 in general, she has a grudge against Opal specifically.
* LukeIAmYourFather: [[spoiler:She is revealed to be the younger sister of Opal, much to the agent's dismay.]]
* MeaningfulName: Her alias of "The Shadow" is meant to represent both being stuck in [[spoiler:her older sister Opal's]] shadow, and becoming a shadow of herself when turning to villainy.
* OminousOperaCape: Has a long black one.
* RocketBoots: She wears a pair of these that have red-orange soles. They prove to be useful in "End of the Road" when entering the tornado.
* SecretIdentity: Of a sort. "The Shadow" could potentially be considered an identity that is created by [[spoiler:Olizabeth, Opal's younger sister,]] but she doesn't swap between her "Shadow" alias and her [[spoiler:"Olizabeth"]] one, instead staying as "The Shadow" up until the mid-season finale.
* SmugSnake: There's rarely a moment when she ''isn't'' smug.
* TheSmurfettePrinciple: Out of the four major kid villains in the franchise, she is the only one to be female.
* VillainRevealsTheSecret: In "End of the Road", she reveals her true identity and her relationship to Opal to all of the other villains. Despite being related to someone working for Odd Squad, though, the Villain Network still sees her as a viable villainess and give her no criticism of any sort.
* VillainsOutShopping: In "Slow Your Roll", she wants the Mobile Unit to give up because she has an eye doctor appointment she needs to get to. Eventually Brutus just decides to bring the optometrist to their SupervillainLair, much to her chagrin.
* VillainTeamUp: The trailer for Season 3's first half reveals that her overarching plan is to gather every villain from around the world to form a "Villain Network" in order to take down the Mobile Unit. The episode "Villain Networking", and her overall arc, expands on this concept.

[[folder:Brutus]]
!!Brutus
[[quoteright:333:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2020_07_08_brutus_webp_webp_image_640_360_pixels.png]]
-> Played by: Osias Reid
The Shadow's main henchman.

* DarkIsEvil: Like his boss, he wears mostly black.
* TheDitz: He's very ditzy in contrast to his boss.
* TheDragon: Serves as this to The Shadow.
* EnfantTerrible: Though not to the extent of The Shadow, he does have malicious intent.
* VileVillainLaughableLackey: Brutus is very loyal to The Shadow and is willing to carry out her orders as needed, but can be very dimwitted at times.

[[folder:Sticky Sisters / Sally]]
!!Sticky Sisters / Sally
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2022_07_27_at_04_13_02_odd_off_the_pressmp4.png]]
-> Sticky Sister #1 played by: Tavia Pereira
-> Sticky Sister #2 played by: AJ Bridel

Two SiblingsInCrime with powers relating to stickiness. They are both named Sally, although they are colloquially referred to as the Sticky Sisters.

* AnimalMotifs: Both of them have gecko motifs, with their outfits and powers resembling that of a gecko's.
* BigApplesauce: "Odd Beginnings: Part 1" has them going to New York City and looking like complete outliers among all the people walking around, being unfamiliar with the city.
* CallingYourAttacks: Every time they attack, they call out what substance they're attacking with.
* CardCarryingVillain: The first Sticky Sister definitely isn't shy about telling others that she and her sister are villains.
--> '''Sister Sally #2:''' Sorry, was I supposed to lie?
--> '''Sister Sally #1:''' Yeah, of course! We lie. We're ''villains.''
* ChainedHeat: A prominent RunningGag with them involves them high-fiving each other, only to get stuck because their hands and fingers are sticky. They then spend a painfully long time attempting to get unstuck. It's such a bad habit that the first Sister Sally has a habit of doing it with other villains, as seen in "Villain Networking", and they also do it with objects that stick to their hands and fingers.
* DiscOneFinalBoss: They serve as the main antagonists for the Season 3 premiere, although it's made clear that they're not the [[BigBad Big Bads]] and are working under another villain.
* DisproportionateRetribution: In "Odd Beginnings: Part 1", they proceed to blast every agent in the Arctic Headquarters solely because Arctic Mr. O asked them if there was a "New York City 2" after they declared their intentions to go ''to'' New York City.
* EvilIsHammy: Between the constant [[EvilLaugh evil laughing]] and the taunts they dole out, yes.
* FoolishSiblingResponsibleSibling: The redheaded, second Sister Sally is more ditzy than her sister, although both of them have their moments of incompetency.
* GreenAndMean: Both of them wear predominantly green and are villains.
* NotQuiteDead: "Odd Beginnings: Part 2" never shows their fates after they try to escape from Orla's crumbling Ancient Headquarters. "Villain Networking" has the first Sister Sally show up, but without her sister. "Odd Off The Press" confirmed that both of them were very much alive and well.
* SiblingsInCrime: They are sisters who work together.
* SuperpowerLottery: Since their forte is sticky things, they have access to a wide range of things they can use as weapons or binding tools, from useful things like tape to mundane but functional things like cinnamon buns.
* TechnologicallyAdvancedFoe: At the very least, they have a better grip on technology and how to use it responsibly than the heroes. The entirety of the "Odd Beginnings" two-parter hinges on them using their smartphones (which agents do not have) to track Opal and Omar, and the 44-Leaf Clover, down.
* WhatIsThisFeeling: In "Odd Beginnings: Part 2", after getting stuck to each other again and collapsing on the ground, the second Sister Sally asks, "Is this a hug?"
* WouldHurtAChild: Most every villain qualifies for the trope to some degree or another. Special mention goes to both Sister Sallies, however, since they left Opal, Omar, Oswald and Orla for dead after both of them go up both staircases and causes Orla's Headquarters to begin collapsing. It's only by SerendipitousSurvival via the [[AncientArtifact 44-Leaf Clover]] do the agents all survive.

[[folder:Aarti Craft]]
!!Aarti Craft
[[quoteright:981:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_07_13_at_13_30_20_double_o_trouble_part_2mp4.png]]
-> Played by: Aurora Browne

An ArtAttacker villainess who has the power to transform any person or object into any arts and crafts project she desires.

* ArtAttacker: Using multicolored laser beams, she can turn any person or object into an arts and crafts project. This can range from tie-dyeing an entire building to simply projecting pom-poms onto a woman.
* AttackBackfire: Sure, she attacks Susan successfully, but unlike a majority of her victims, Susan is actually fine with the way she looks and fully embraces it.
* CurbStompBattle: Delivers one to Oswald and Orla to the point where they don't even have enough time to ''act,'' let alone do so much as dodge. In return, Oxford and Osalind both give her one, putting her through the wringer due to their speed.
* FemmeFatalons: Her colorful nails are pretty long, although she doesn't fight with them directly -- she shoots laser beams in an array of colors at her targets. Oxford and Osalind manage to stop her by firing melon balls at her nails, covering them and leaving her with no way to attack.

[[folder:The Form Changer]]
[[quoteright:599:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_12_06_at_19_13_13_formchanger_s3e19awebp_webp_image_1280_720_pixels.png]]
-> Played by: Laura Landauer

A shapeshifting villainess who can transform into any person or object she desires, with limitations.

* BadassFingersnap: As a contrast to her sister who usually shouts what she's about to transform into, the Form Changer changes forms by snapping her fingers.
* BatmanGambit: In "Box Trot", she manages to pin the personalities and mannerisms of Omar, Osmerelda and Oswald easily, and uses their forms to attempt to get to the box that contains other villains' powers. The only thing that stops her is [[ImposterForgotOneDetail high-fiving Orla with her right hand instead of Osmerelda's dominant left.]]
* EvilRedhead: She has orange hair and is a relatively new villainess on the scene.
* EvilTwin: She's the twin sister of the Shapeshifter who later performs a HeelFaceTurn.
* HeelFaceTurn: Pulls one in "Box Trot" after the Mobile Unit talk some sense into her.
* KarmaHoudini: Ends up being one of the few villains who don't [[{{Depower}} get their powers taken away]] in "End of the Road". Her attempt to get her fellow villains' powers back ultimately ends up failing thanks to the Mobile Unit's intervention.
* SameCharacterButDifferent: She's essentially the Shapeshifter, just with orange "skin" instead of blue -- right down to being played by the same actress. Even Opal and Oswald have to ask her if she just shapeshifted into an orange version of the Shapeshifter when they first meet her.
* ShapeshifterModeLock: The Form Changer can only change into a person or object once. Once she goes back to her ShapeshifterDefaultForm, she can't access said person or object's form again.
* StrongerThanTheyLook: Her first appearance in "Box Trot" is in the form of a handbag that Lady Bread has. When she shapeshifts back to her ShapeshifterDefaultForm, she's shown holding onto the villainess's arm without breaking a sweat.
* VoluntaryShapeshifting: Has this as a power. However, she can only shapeshift into something once. This provides a stark contrast to the Shapeshifter, who can only shapeshift into a specific person or object once a week. Unlike the Shapeshifter, she can also use her powers inversely and change the forms of other objects or people.

[[folder:Dr. Dry]]
[[quoteright:800:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_12_06_at_22_01_09_drdry_s3e24bwebp_webp_image_800_720_pixels.png]]
-> Played by: Chris Locke

A villain who specializes in everything dry.

* TheCobblersChildrenHaveNoShoes: He wears a stethoscope, but specializes in making things dry. Presumably, this extends to causing things like dry mouth and dry skin in patients.
* HeroStoleMyBike: Inverted. He commandeers a bike from a cycling champion and orders him to ride out to the middle of nowhere when he's in the middle of a race. When the cyclist protests, all Dr. Dry does is give an EvilLaugh. Ends up being subverted when it's shown that's not what really happened.
* LabcoatOfScienceAndMedicine: He dons one that is brown to match his motif, instead of the standard white.
* MorallyAmbiguousDoctorate: Has "Dr." in his name and wears a stethoscope around his neck, but is firmly on the side of evil.
* NotQuiteFlight: In "Nature of the Sandbeast", he uses two whipped cream cans to fly over the fence holding the Sandbeast's egg in Omar's version of the story.
* NotSoHarmlessVillain: Whereas "Villain Networking" had Dr. Dry not be much of a threat, "Nature of the Sandbeast" shows him attempting to cause an ApocalypseHow situation using the eponymous UnwittingPawn.
* RiddleForTheAges: It's unknown how he was able to turn back into a human in "Nature of the Sandbeast" after having been turned into a sandwich in "Villain Networking".
* SandBlaster: Downplayed. He specializes in dry things like sand and dirt, but doesn't have direct control over sand and needs an outside source to enact his plans.
* TrickedOutGloves: In Orla's version of the story in "Nature of the Sandbeast", he wears a pair of "shovel gloves" for digging.
* TrickedOutShoes: In Omar's and Oswald's version of the story in "Nature of the Sandbeast", he uses bouncy shoes to hop over the fence to reach the Sandbeast egg.

[[folder:Dream Weaver]]
[[quoteright:1000:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_12_06_at_22_30_29_in_your_dreamsmp4.png]]
-> Played by: Julie Nolke

A sleep and dream-themed villainess who torments Orpita.

* CosmicMotifs: Underneath the gold and silver accents, she wears a one-piece uniform with patterns meant to resemble something one would find in space, which reflects her sleep and dream abilities.
* DreamWalker: She enters the Little O's dreams and plants her Bad Dream Machine in them in order to turn them into nightmares.
* DreamWeaver: True to her name, she has the ability to [[NightmareWeaver shape dreams into nightmares]] at her own discretion, which can induce insomnia in her victims and leave them with a bad case of SleepDeprivation.
* EvilGenius: One of the smartest villains in the entire franchise -- she not only has a Bad Dream Machine to turn dreams into nightmares, she has a compact remote that does the same thing, so she doesn't need to be in the direct vicinity of the machine to cause oddness. She also consistently manages to stay one step ahead of Orla, Osmerelda and the Little O up until the end of the episode, and isn't above taunting and scaring the latter.
* LightIsNotGood: Her uniform is largely comprised of silver and gold accents, but she is an EvilGenius who goes after the Little O.
* NoWaterProofingInTheFuture: Subverted. Water won't destroy her machine. It's the ''sun'' that will fry it to a crisp.
* ShockAndAwe: She conjures up ElectricJellyfish in one of the Little O's nightmares, which are the odd equivalent to lightning and are all but stated to have the ability to shock people.
* SleepDeprivation: Her entire schtick is causing this in agents so that they'll be too exhausted to solve oddness effectively.
* WhiteHairBlackHeart: She has white hair that is shaped to look like a cloud and is a villainess with dream powers.

[[folder:Evil Sculptor]]
[[quoteright:212:https://static.tvtropes.org/pmwiki/pub/images/sculptor_5.png]]
-> Played by: Michael Musi

A villain who can manipulate and shape clay however he wishes.

* BeAllMySinsRemembered: In "16-and-a-Half Blocks", he tells Orla and Omar that no matter how hard they try to turn him to the side of good, and regardless of if he ''does'' turn good, everyone will always see him as a villain. Orla suggests that he do good deeds that will make people see him as a hero, but when he decides to take her advice and attempts to help a postal worker with her packages, she becomes under the pretense that she is being attacked and calls attention to him, further damaging whatever reputation he may have had as a hero.
* CardCarryingVillain: Has no problem with outright pinning himself as a villain.
* DishingOutDirt: He can control clay and can create large sculptures made of clay within seconds. Following his HeelFaceTurn, he decides to go into the career of being a souvenir maker.
* DoesThisRemindYouOfAnything: Him helping a postal worker with her packages, followed by her crying out "Villain!" and getting others' attention, is very reminiscent of what one would do when harassed or attacked by a criminal. The only outlier is that bystanders ''also'' scream "Villain!" at him and don't rush to help the postal worker in any way.
* HeelFaceTurn: The plot of "16-and-a-Half Blocks" surrounds him wishing to enter Odd Squad's [[WitnessProtection Villain Protection Program]] and find a new purpose in life that doesn't involve villainy. He eventually does so successfully, though it takes a lot of effort to not have other villains find out.
* MadArtist: Though he doesn't want to become a villain anymore, Evil Sculptor can create clay sculptures within seconds.
* ObviouslyEvil: Nearly every villain in the entire franchise looks villainous due to their outlandish clothing, but for the Evil Sculptor, it's notable in that Orla is the first to spot him among a sea of people wearing regular clothes due to how he dresses.
* OneShotCharacter: Only appeared in "16-and-a-Half Blocks".
* VillainousRescue: When running from a group of villains that wish to stop him from turning over a new leaf, Evil Sculptor makes a mountainous sculpture made out of clay that he and the Mobile Unit can hide behind. It ends up working.
* VillainTeamUp: Prior to his HeelFaceTurn, he was a member of The Shadow's Villain Network. As such, when he does make the turn, he is able to provide lots of useful information to the Mobile Unit and to Oprah about the Network and its leader.
* WhiteHairBlackHeart: He's a villain who has white hair and a white mustache that look like glue was painted on them. However, he ends up making a HeelFaceTurn at the end of his debut episode.
* WitnessProtection: As part of his HeelFaceTurn, he wishes to enter Odd Squad's Villain Protection Program. In exchange, he must feed information to the Big O and the Mobile Unit about the Villain Network and about [[BigBad The Shadow.]]

[[folder:Mr. Unpredictable]]
[[quoteright:369:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_12_12_at_17_12_31_mr_unpredictablemp4.png]]
-> Played by: Izad Etemadi

A villain who dabbles in unpredictability.

* AcademyOfEvil: Graduated from Villain University, where it's clear that he was quite disliked.
* AnimeHair: His blue hair looks like something one would find on ice cream, complete with a curl on the top.
* ConfusionFu: Essentially his entire schtick. It's a break from the norm that other villains have as they usually tend to follow a specific pattern, and it's for this reason that Opal and Omar struggle hard to catch him. Subverted when they realize that he actually ''does'' operate on a pattern and isn't as unpredictable as they thought he was.
* DisneyAcidSequence: The video he sends to the Mobile Unit is completely nonsensical and a little trippy, befitting his modus operandi of being unpredictable. Even ''Oprah'' has to acknowledge that "it's a weird one".
* DisproportionateRetribution: He cut off pretty much all of his friendships and acquaintances with other students due to completely innocuous things, such as Tessa Twosie refusing to give him her shoe so he can make soup in it, which causes him to declare that he'll never use anything or do anything involving the number 2.
* HoistByHisOwnPetard: He's defeated by Opal and Omar turning the tables on him with the inverse of ConfusionFu followed by using his own unpredictablity against him.
* MeaningfulRename: Upon his defeat, he considers the possibility of renaming himself "Mr. Predictable" before deciding to go with "Derek" instead.
* [[invoked]] TheScrappy: In-universe. Mr. Unpredictable was, and still is, hated by most of the students at Villain University due to being a {{Jerkass}} that [[ComicalOverreacting overreacts to minor things]].
* TheyCallMeMisterTibbs: The reason why he broke off his friendship with Simon Sixer is because he made the mistake of calling him "Mr. U". As such, he doesn't want anything to do with the number 6.

!!Other Characters
[[folder:Jeremy]]
[[quoteright:847:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_12_06_at_23_46_12_jeremymp4.png]]
-> Played by: Zachary Tradmor

A fanboy of Odd Squad who gets a chance to meet the Mobile Unit when he and his family become clients afflicted by oddness.

* AscendedFanboy: He is a fan of Odd Squad who finally gets the chance to make his dream a reality when Opal recommends him to the Odd Squad Academy for his efforts in stopping Monsieur Papier-Mache.
* AudienceSurrogate: Jeremy is meant to represent kids in the primary demographic who want to join Odd Squad but are overenthusiastic about the franchise and its characters.
* BorrowedCatchphrase: When he is given Omar's phone, he recites the same "go for [name]" catchphrase that is shared by Olive, Otis and Opal.
* BrokenPedestal: Subverted. Opal tries to avert the trope and make sure Jeremy sees her and the Mobile Unit in a positive light, believing that if he sees her make a mistake, he will be let down and have his thoughts of the Mobile Unit being a flawless team shatter. As it turns out, Jeremy doesn't care what mistakes the Mobile Unit makes and will continue to idolize them regardless.
* CheapCostume: His outfit is essentially a watered-down, more casual version of what Odd Squad Investigation agents wear.
* CheerfulChild: He is a happy kid who never loses his positive demeanor.
* ChekhovsGunman: In "Jeremy", he ends up being the key to unlocking the Mobile Unit's van, as he has the knowledge needed to send it out of lockdown mode.
* TheLightfooted: Very agile in battle, enough to throw Monsieur Papier-Mache off so he can unlock the van.
* LoonyFan: Not as extreme as most examples of the trope since he's meant to be an AudienceSurrogate, but he definitely worships Odd Squad and every LivingLegend it has employed, up to and including the Mobile Unit.
* OohMeAccentsSlipping: His French-Canadian accent manages to slip in "Jeremy" when he shows Opal and Omar what spoons he uses for eating.
* PreciousPuppy: Has one in the form of Rocket, a bulldog who isn't so keen on following commands.
* SixthRanger: Subverted. Jeremy initially seems like he's going to be one of these, but after his debut episode he's never seen or mentioned again.
* StealthHiBye: Comes with the territory of being a LoonyFan.
* WhatTheHellIsThatAccent: Jeremy speaks in a French-Canadian accent that is a little hard to identify at first listen.

* PutOnABus: Leaves to help the Odd Squad Space Unit in "Odd Off The Press", and is replaced by Orpita.

[[caption-width-right:350:[[labelnote: Click to see her as the Big O's assistant.]] https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_12_06_at_18_04_02_screenshot_2021_07_12_at_19_26_36_odd_off_the_press_pbs_kids_copy_mp4png_webp_image_350_472_pixels.png[[/labelnote]]]]
[[caption-width-right:349:[[labelnote: Click to see her as [[spoiler:the Little O.]] https://static.tvtropes.org/pmwiki/pub/images/little_o.png]][[/labelnote]]]]

[[folder:Orpita / Little O]]
!!Orpita / Little O
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_07_12_at_19_32_07_its_not_easy_being_chill_mp4.png]]
[[caption-width-right:350:[[labelnote: Click to see her as the Big O's assistant.]] https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_07_12_at_19_26_36_odd_off_the_press_pbs_kids_copy_mp4.png[[/labelnote]]]]
[[caption-width-right:350:[[labelnote: Click to see her as [[spoiler:the Little O.]] https://static.tvtropes.org/pmwiki/pub/images/little_o_transparent.png]][[/labelnote]]]]
-> Played by: Shazdeh Kapadia
A young girl initially introduced in "It's Not Easy Being Chill" as an agent-in-training at the Odd Squad Academy, then returned in "Odd Off The Press" as the Big O's assistant before being promoted to the role of temporary Big O and given the new name "Little O".

* AscendedExtra: She was previously a one-shot character in "It's Not Easy Being Chill" before becoming a member of the Main 5 group comprised of her, Osmeralda Kim, Omar, Opal and Oswald.
* AdorablyPrecociousChild: Zig-zagged. Orpita is the stand-in leader of all Odd Squad precincts in the world, so she has a load of responsibility on her shoulders and is generally regarded as serious and stern. However, since she is a child, she's prone to fits of immaturity, although it's nowhere near the levels of the Big O before Oprah.
* CharacterDevelopment: In "It's Not Easy Being Chill", she was presented as a naive but innocent agent-in-training who was still attending the Odd Squad Academy and wasn't too skilled in the ways of math and Odd Squad as a whole, being more of a MellowFellow. Come "Odd Off The Press", she has matured to the point where she becomes the NumberTwo to the Big O and has a much better understanding of how Odd Squad functions, with her naivety completely gone.
* DreamWeaver: While it's never stated in the show proper, "In Your Dreams" all but states that she has the ability to engage in lucid dreaming, shaping her own dreams in order to fight back against the aptly-named Dream Weaver, who attempts to turn her dreams into nightmares.
* EveryoneCallsHimBarkeep: Upon being promoted to the position of Little O, she is consistently referred to as such, since it's also the name of the title an agent receives upon promotion.
* MellowFellow: In "It's Not Easy Being Chill", she is shown to be very laid-back, and because of it, she takes a liking to Omar. As of "Odd Off The Press", she's become a little less mellow, but still mostly keeps a cool head when tensions run high.
* NumberTwo: Takes up this role to the Big O, being tasked with interviewing potential candidates to be her replacement before being chosen herself for the position.
* RankUp: She goes from being an agent-in-training, to working in the department of The Big Office as the Big O's assistant, to being the temporary Big O.
* StealthHiBye: She ''loves'' to employ this in the same vein as Oprah.
* SuspiciouslySimilarSubstitute: She shares quite a few mannerisms and traits with Oprah, from her love of juice to her frequency to [[SuddenlyShouting suddenly shout.]] However, they also have differences -- Orpita is more of a BenevolentBoss and is more childish in nature, and she doesn't have the same amount of strength as Oprah. She is also far younger than Oprah, who is over 200 years old.
* TeenSuperspy: While Odd Squad agents are generally regarded as this, it's revealed in "Mission O Possible" that Orpita was once an Odd Squad Special Operations agent.
* TrademarkFavoriteFood: Juice boxes, similar to Oprah, although it's currently unknown whether it's to the point of her being TheAlcoholic. According to "Odd Off The Press", loving juice boxes and having a vast knowledge of them and their flavors is a requirement for being in the position of the Big O.
** On a more personal level, she also loves grilled halloumi.
* VillainInAWhiteSuit: Inverted. As the Little O, she wears a white suit, but is in no way villainous.

[[folder:Agent Olando]]
!!Olando
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_07_12_at_19_28_07_odd_off_the_press_pbs_kids_copy_mp4.png]]
-> Played by: Ari Resnick
An ancient Odd Squad agent tasked with guarding an Odd Squad artifact known as the Golden Sundial in a desert region.

* BizarreTasteInFood: If the casting call script for him is any indication, he enjoys eating things like spider milk pudding and worm salad sandwiches alongside other normal foods like banana bread.
* FishOutOfTemporalWater: Similar to Orla, he is an ancient agent who is unfamiliar with the modern world.
* GoodIsNotNice: He's employed with Odd Squad and has served as the protector of the Golden Sundial, but he's definitely not the nicest agent in the organization and has very little regard for the safety of his teammates and his friends.
* JadedWashout: Part of the crux of his character arc revolves around him not being as heroic as he was centuries ago, where he did battle with creatures like hydras, and wanting to return to the olden times when he was revered as a strong hero.
* LeeroyJenkins: Devastatingly so, to a bigger extent than Orla. His impulsive nature gets him and his teammates in trouble often and costs him a lot in terms of friendship and employment.
* NoListeningSkills: Trying to get him to have a HeelRealization or posing an idea to him on how to solve a problem is an absolute lost cause.
* NoPlaceForMeThere: Although he has nothing left to protect inside of it, he is initially afraid to leave his Headquarters behind because he feels he won't have a place in society and he won't fit in. Orla assures him that she felt the exact same way but became a well-meaning, helpful part of society in due time, and that he will as well.
--> '''Olando:''' But, I have been here so long that I am afraid to leave. What if there is no place for me out there?
--> '''Orla:''' Then you will make your own place, as I have.
* OlderIsBetter: He firmly believes that the old-fashioned way of doing things is the best way, which is in contrast with Orla, who eventually gets used to the modern way of living in society.
* ReallySevenHundredYearsOld: If his comment at the end of "Old Odd, New Tricks" is any indication, he's 500 years old, the same age as Orla, despite the fact that he looks much younger.
* SecretHandshake: Shares one with Orla in "Sunny Sides Add Up". Presumably it's something that all Odd Squad Protectors share.
* SixthRanger: Takes this role in the team beginning in "Old Odd, New Tricks", and quickly steps out of the role when he becomes fired.
* SpearCounterpart: Serves as this, as well as an {{Expy}}, to Orla, sharing her LeeroyJenkins behavior.
* SpockSpeak: Like Orla, he does not use contractions and speaks in a very blunt manner.
* TeamSpirit: Averted. Olando doesn't believe in teamwork, citing that he didn't need it and held his IWorkAlone mentality for 500 years, so there's no need to change it in modern times in spite of how much Odd Squad has changed. This causes him to be fired from the organization.
* ThereIsAnother: Orla initially believed that she was the only Odd Squad Ancient Agent left in existence before she learned about Olando and how he's been alive for as long as her. Likewise, it's implied that Olando thought that he too was the LastOfHisKind prior to meeting Orla.
* TurnInYourBadge: He's fired by the Little O at the end of "Old Odd, New Tricks" and angrily hands his badge to her before saying that [[WeWillMeetAgain she and Orla haven't seen the last of him]].

[[folder:Van Computer]]
!!Van Computer
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_07_03_at_21_12_29_odd_beginnings_part_2_mp4.png]]
-> Voiced by: Hattie Kragten
The Mobile Unit van's built-in AI. It controls many features of the van and often aids the agents in numerous ways.

* BenevolentAI: Doesn't have a mean circuit in its system.
* ComputerVoice: Normally, its voice sounds human, but also has a robotic tone to it. When it's low on energy, its voice sounds more robotic, and when it's singing, its voice sounds more human.
* Expositron9000: Downplayed. It doesn't give exposition, but relays calls to the agents from the Big O, who serves as MsExposition in nearly every episode.
* FunPersonified: It thinks of itself as this, and has the ability to turn on multicolored lights and fire streamers, but mileage varies on whether it's true.
--> '''Van Computer''': Every group needs a WildCard.
* SixthRanger: If its interview is any indication, it considers itself to be the fifth member of the Odd Squad Mobile Unit and goes to ''extreme'' lengths to prove it. However, it generally serves a supporting role to the agents (often relaying calls from the Big O), doesn't help them solve cases often, and isn't employed by the organization in any manner.
* SmartHouse: Of a sort. It's not made clear whether the van serves as the Mobile Unit agents' home, but the Van Computer can operate lights and appliances in a similar vein to a house equipped with smart technology.

!!Minor Characters
[[folder:Arctic Mr. O]]
!!Arctic Mr. O
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_08_18_at_02_55_56_teach_a_man_to_ice_fish_mp4.png]]
-> Played by: Ellery Miki-Petite
The Director of the Odd Squad Arctic precinct and Opal and Omar's boss prior to them joining the Mobile Unit in Season 3.

* TheDitz: Very, ''very'' much so, which is directly attributed to him having worked in the Arctic for a long time. Although he's not without his moments of intelligence.
* EveryoneCallsHimBarkeep: He is always referred to as "Arctic Mr. O". His actual name has not been revealed.
* IncompetenceInc: "Teach a Man to Ice Fish" reveals that in addition to being a PointyHairedBoss, his agents (bar Opal and Omar) are all incompetent to some degree. Justified by the fact that like Arctic Mr. O, they're generally isolated from people and from society.
* LastPlaceYouLook: He frequently loses his glasses despite the fact that they're still on his face. However, he never notices they're on his face until he asks where they are and someone points it out.
* LeaderWannabe: Shows shades of this in "Odd Off The Press" where he vies for the position of the [[NumberTwo Little O]] following Oprah's departure. Despite failing in every aspect of Orpita's interview, he repeatedly asks her if he got the job, and even after Denver Mr. O is chosen for the position instead of him, he casually hangs out in Oprah's office. However, when Orpita is chosen to be the actual Little O instead after Denver Mr. O proves himself to be incapable of being in the position, Arctic Mr. O doesn't mind and takes the decision mostly in stride (apart from him mistaking Oprah's "my replacement was here all along" comment as being directed towards ''him,'' not Orpita).
* MellowFellow: Not to the extent of those like Ocean, but he is very laid-back and rarely shows extreme emotion, even when facing down villains.
* NiceGuy: For all his idiocy, he doesn't have a mean bone in his body. Case in point: in "Odd Off The Press", Orpita asks him to recite the "Well, what are you waiting for? Go!" {{Catchphrase}} during her interview with him. He begins to say it, but instead of "go", he expresses concern and asks if his (metaphorical) agent wants to take a day off because he refuses to send them out onto the field if they're getting sick. Orpita reacts to his effort with an exasperated but nonplussed "I would try that again", but it's still quite notable for someone of his department and overall status in the Odd Squad hierarchy, especially since past Directors have been known to be [[MeanBoss Mean Bosses]] at best and [[EnfantTerrible Enfant Terribles]] at worst.
* PointyHairedBoss: He's easily the most ineffective Director seen in the show thus far. Potentially justified by the fact that he works at a barren Odd Squad precinct in the Arctic, which doesn't operate like most precincts.
* PurpleIsPowerful: Subverted. He does wear mostly purple, as it's his department's theme color, but is very weak compared to other Directors such as Oprah and Olive.
* ReallyFondOfSleeping: The ''WebVideo/{{OddTube}}'' episode "Know an O: Part 1" reveals that he's a {{Sleepyhead}} that takes up to ''eight naps a day.'' "Odd Beginnings: Part 1" showcases this in action, as he's shown [[FunnyBackgroundEvent sleeping in his chair]] while Opal and Omar go to their desks with the Bag O' Machines.
* ReassignedToAntarctica: Befitting his name, Arctic Mr. O works at the Arctic Odd Squad precinct. It's not revealed how he came to be in charge of the precinct, whether it was by punishment from Oprah (as the Big O) or by promotion from a previous Director. The "Odd Beginnings" two-parter implies that the precinct's Headquarters doesn't even have ''working heat'' and he asks Oprah for space heaters and hand warmers as soon as he gets the chance, but aside from that, he doesn't seem to mind working there.
* SuperStrongChild: Notably averted. Unlike most Odd Squad Directors, he is very weak and doesn't have much physical strength, if any at all. "Odd Off The Press" has Orpita presenting a board and a cinder block for him to chop, and instead of going right for it like Denver Mr. O and Belgium Ms. O, he asks her incredulously, "With my ''hands?''"
* TrademarkFavoriteFood: As an Odd Squad Director, his drink of choice is water. However, unlike Olive, whose drink of choice is also water, he eats icicles that come in various flavors.
* WithDueRespect: In "Odd Beginnings: Part 2", he has no problem confronting the Big O about taking Opal and Omar away from him since they work for him, and says that if she wants them to quit working at his precinct as Investigation agents and go into the newly-created Mobile Unit department, then she will have to give him something in return. Opal, Omar, and even ''Oprah herself'' immediately grow concerned, but luckily, all he wanted to trade them for were heaters and glove warmers. May be justified by the fact that Opal and Omar are the best agents in the precinct, which doesn't have many agents to begin with, and the decision for them to become a part of a new department working under the Big Office and not a singular precinct is very sudden.
* YankTheDogsChain: He ends up being in control of the chain in "Odd Beginnings: Part 1". Upon Opal and Omar returning to Headquarters and finding that the two identical snowflakes they managed to capture have melted, Arctic Mr. O attempts to cheer them up by offering them some new machines. The two Investigation agents go absolutely ''nuts'' as they scream in delight about finally getting gadgets, all while their boss looks on with a smile...until he simply tells them that no, they're not getting gadgets because it's too cold in the Arctic for gadgets to work effectively. Instead, he gives them a bag of "simple machines", filled with things such as a lever and a pulley, which ends up being a ChekhovsGun.

[[folder:Orana and Oliver]]
!! Orana and Oliver
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_03_08_odd_squad_full_episode_end_of_the_road_pbs_kids_mp4.png]]
-> Played by: Geneva Phan (Orana) and George Holahan-Cantwell (Oliver)
An Investigation partner pair situated in Australia who are close confidantes of Oprah in the first half of Season 3.

* BattleBoomerang: Orana has a Boomerang-inator on her which she uses to attack the Sand Queen in the mid-Season 3 finale. She ends up missing by a long shot, but it does manage to come back to her when the villainess attacks her and she becomes trapped in sand.
* BizarreAlienLimbs: In "Down the Tubes", Orana accidentally zaps Oliver with her Octopus-inator, giving him octopus tentacles for legs.
* BraidsOfAction: Orana wears her hair in a braid extending backwards that is combined with a small bun.
* TheDividual: They are never seen apart and always work together. It's justified, however, since they're partners.
* FieryRedhead: Inverted with Oliver, as he has red hair but doesn't have a temper, and is instead serious.
* LandDownUnder: They both work in an unidentified Australian Odd Squad precinct.
* MrExposition: They serve this role in "Slow Your Roll" and "Down the Tubes" along with Oprah, although they step out of it entirely in the Season 3 finale.
* SpearCounterpart: Oliver looks strikingly identical to Olympia from Season 2, having the same red hair and red glasses and being in the same department.
* TechnoWizard: Both agents are very skilled in the realm of technology. In "Slow Your Roll", they are able to tell the precise moment when the van is being hacked into and taken over by The Shadow.

[[folder:Bouldy]]
[[quoteright:508:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_12_06_at_21_23_50_bouldy_croppedwebp_webp_image_509_536_pixels.png]]
-> Voiced by: Mark Trafford
Orla's stony former friend, who accompanied her for 400 years while she guarded the Odd Squad Headquarters located in the Amazon.

* AnimateInanimateObject: In "The B-Team", he is shown to have the capability to speak English, which Oceana and Arctic Mr. O manage to understand after struggling for a while.
* CompanionCube: Was one for Orla, which makes sense when one considers how lonely she was in the Amazon Odd Squad Headquarters for century after century.
* MisterSeahorse: It largely depends on the mileage, but the sixteen rocks he produces in "The B-Team" could potentially be him giving birth to sixteen children at once. It's rather hard to tell, since OffscreenTeleportation is involved.
* PowerMakesYourVoiceDeep: Bouldy is a StoneWall who has a very deep voice.
* ReplacementScrappy: An in-universe example. According to Oprah in "The B-Team", he was meant to be Orla's replacement in the Mobile Unit. Naturally, due to being former friends, Orla doesn't view him in a positive light.
* StoneWall: Quite literally in Bouldy's case -- he's a boulder that can't move but provides good defense and good coverage for his teammates.
* WeUsedToBeFriends: It and Orla used to be best friends, up until something happened that caused their friendship to sever. What that something was, though, is [[NoodleIncident never explained.]]

[[folder:Oceana]]
[[quoteright:757:https://static.tvtropes.org/pmwiki/pub/images/oceana.jpg]]
-> Played by: Holly Gorski
An Odd Squad Librarian who works at the Odd Squad Library in Chicago.

* CreepyChild: Her first appearance involves her putting on [[TheUnSmile a weird smile]] as she, Omar and Oswald wait for her computer to print a pie recipe. Her manner of typing also comes off as creepy. However, she's not antagonistic and is pretty friendly outside of the creepiness.
* TheDitz: Ironically for someone who's a librarian, "The B-Team" shows that she isn't all too bright.
* ExpoLabel: Oceana takes this to its extremes in "The B-Team". She labels ''everything'' in the van, whether it's to denote something or it's a completely nonsensical note.
* NiceGirl: She's a genuinely nice girl who is slow to act, but is dedicated to stopping oddness.
* OneSteveLimit: Averted. Oceana shares a similar name to Ocean, an ''Series/OddSquad'' Season 2 character who was in the Creature Care department.
* ReplacementScrappy: An in-universe example. She is seen as Oswald's replacement in "The B-Team" because Oswald was once an Odd Squad Librarian like her, but Oswald doesn't really see her in a positive light.
* ScaryLibrarian: Downplayed. About the only thing that makes her scary is her [[TheUnSmile unnerving smile]] and her way of typing on a keyboard. Outside of that, she's affable.
* SkewedPriorities: She's more keen on labeling things than helping out with cases, such as making a new label for a new gadget instead of using said gadget to stop a major threat.
* SlowerThanASnail: In "The B-Team". Due to being a [[TheDitz ditz,]] she's slow in battle. It took her, Arctic Mr. O, and Bouldy two days to close a wormhole, as opposed to the Mobile Unit's much-better record of 48 seconds.
* TechnologyMarchesOn: Averted. Her desktop computer looks like something straight out of the 90s and looks very out of place in a high-tech organization. It's also far slower than most computers seen in the franchise.
[[/folder]]

[[folder:Octavius]]
[[quoteright:764:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_12_08_at_19_02_21_overduemp4.png]]
-> Played by: Keegan Hedley

The Odd Squad Head Librarian and Oswald's friend, who works at the main Odd Squad Library.

* CompressedVice: In "Off the Clock", Octavius is shown to be a rival to Oswald when "Overdue!" had them be friendly with each other. By the end of that episode, they were on good, if not neutral, terms. Not so much in "Off the Clock".
* {{Determinator}}: Octavius can and will attempt to find books for patrons even if he doesn't have the name of the book, the name of the author, or the subject of the book given to him.
* EvilLaugh: Gives a whispered one in "Off the Clock" when he tells Oswald he will never be able to top his "Annual Gathering of the Past and Present Library Museum People".
* HypocriticalHumor: At the end of "Overdue!", he is shown [[FunnyBackgroundEvent in the background cheering along with the Mobile Unit]] before he catches himself and shushes himself and the others using his new "shushing stick".
* OverlyLongName: His full name is Octavius James [[MetaphorIsMyMiddleName Help-You-Find-A-Book]] Donaldson, making him one of the few agents to canonically have a last name. He lampshades it in "Overdue!" by explaining that it's a nightmare when it comes to filling out paperwork.
* QueerCharacterQueerActor: Downplayed. After playing Octavius, Keegan Hedley later came out as gay, but it's never been confirmed whether Octavius is meant to be on the LGBTQ+ spectrum or not.
* RulesLawyer: He enforces the "no talking loudly in a library" and "no soliciting in a library" rules to absolutely insane extremes. He even claims he would shush patrons all day if it didn't make his throat so dry.
* ScaryLibrarian: He absolutely enjoys shushing people, even when the sound he makes to shush is louder than the offender's talking. He shushes people so much that his throat goes completely dry.
* SilenceIsGolden: Invokes this in "Overdue!" It gets to the point where his throat becomes dry and he requires a "shushing stick" lest he lose his voice.
[[/folder]]

[[folder:Ono]]
[[quoteright:775:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_12_08_at_22_48_37_onowebp_webp_image_1280_720_pixels.png]]
-> Played by: Ava Ro

A Security agent who protects the Top Secret Security Facility at Devil's Tower in Wyoming.

* [[invoked]] TechnologyMarchesOn: An in-universe example. Ono's smartwatch has functions that other agents' smartwatches don't, including the ability to open up doors, the ability to activate booby traps, and the ability to be used as a screen, among others.
[[/folder]]

[[folder: Arctic Mr. O]]

[[folder: Orana and Oliver]]

[[folder: The Form Changer]]

[[/folder]]

For characters debuting in the main series, go [[Characters/OddSquad here.]]

[[caption-width-right:350:[[labelnote: Click to see her as the Big O's assistant.]] https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_07_12_at_19_26_36_odd_off_the_press_pbs_kids_copy_mp4.png[[/labelnote]]]]
[[caption-width-right:350:[[labelnote: Click to see her as [[spoiler:the Little O.]] https://static.tvtropes.org/pmwiki/pub/images/little_o_transparent.png]][[/labelnote]]]]