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* CharacterDevelopment: In "Hold the Door", he was a kid who made Olive and Otto {{Badly Battered Babysitters}} by disobeying them and running away from them, being constantly curious and inexperienced. By "Worst First Day Ever", he has matured into a more well-adjusted agent who largely knows how to handle his own.

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* CharacterDevelopment: In "Hold the Door", he was a kid who made Olive and Otto {{Badly Battered Babysitters}} Babysitter}}s by disobeying them and running away from them, being constantly curious and inexperienced. By "Worst First Day Ever", he has matured into a more well-adjusted agent who largely knows how to handle his own.
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* CharacterDevelopment: In "Hold the Door", he was a kid who made Olive and Otto {{Badly-Battered Babysitters}} by disobeying them and running away from them, being constantly curious and inexperienced. By "Worst First Day Ever", he has matured into a more well-adjusted agent who largely knows how to handle his own.

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* CharacterDevelopment: In "Hold the Door", he was a kid who made Olive and Otto {{Badly-Battered {{Badly Battered Babysitters}} by disobeying them and running away from them, being constantly curious and inexperienced. By "Worst First Day Ever", he has matured into a more well-adjusted agent who largely knows how to handle his own.
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!!Ori
[[quoteright:388:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_09_01_at_23_29_37_hold_the_doormp4.png]]
[[caption-width-right:388:[[labelnote: Click to see him as an Odd Squad agent.]] https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_09_01_at_23_32_15_no_ifs_ands_or_robots_worst_first_day_evermp4.png[[/labelnote]]]]
-> Played by: Samuel Faraci

A young agent-in-training who eventually becomes an Investigation agent at Precinct 13579.

* CharacterDevelopment: In "Hold the Door", he was a kid who made Olive and Otto {{Badly-Battered Babysitters}} by disobeying them and running away from them, being constantly curious and inexperienced. By "Worst First Day Ever", he has matured into a more well-adjusted agent who largely knows how to handle his own.
* CuriousAsAMonkey: In his debut episode. Ori presses buttons on gadgets he fiddles with, goes inside rooms that are deemed too dangerous for even experienced Odd Squad agents to go into unless they know what they're doing, and mingles with creatures who want to kill him. He mostly grows out of this by "Worst First Day Ever", where he experiences his first day as an Investigation agent, but is still curious enough to open up the Centigurp container, which [[UltimateJobSecurity allows him to keep his job and escape being fired.]]
* MikeNelsonDestroyerOfWorlds: At the end of "Worst First Day Ever", he manages to cause a [[TemporalParadox timetastrophe]] by pressing a blue button in the Lab, causing everyone to flee Headquarters and showing that while he may have matured, his curiosity hasn't really gone away in full.
* OffscreenTeleportation: Some characters have a tendency to do this to a certain degree if they're not engaging in StealthHiBye, but Ori takes it to an entirely new level. As one example, he manages to retrieve a sizeable gadget from Otto's pocket without him noticing, even though it's agents' ''backs'' that are treated as {{Hammerspace}}.
* RankUp: The end of "Hold the Door" has Oprah giving him a badge and making him a full Investigation agent, although he runs away before he can take the badge and leads everyone to begin chasing after him again. "Worst First Day Ever" shows that he did still manage to get promoted regardless.
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!!Olo
[[quoteright:504:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_08_17_at_00_35_18_olowebp_webp_image_504_637_pixels.png]]

An agent who works as the head of the Glue department (as well as its assistant deputy commissioner, maybe) at Precinct 13579.

* BarrierMaiden: Her frequent gluing of things in Headquarters causes its existence, prevents its collapse, and ultimately prevents its destruction. When she is forced to cut back on supplies, items ranging from support beams to bricks begin falling and desks begin to crumble. To top things off, the glue she uses is ''school glue'' and not anything heavy-duty.
* DuctTapeForEverything: Olo is the head of the Glue department, and specializes in keeping Headquarters sturdy by gluing pieces together with school glue.
* FictionalGreetingsAndFarewells: She greets people by using her name as a pun on "hello".
* GravityMaster: In the ''WebVideo/{{OddTube}}'' episode "Meet Agent Olo", she has the ability to move any chair she's sitting on by scrunching her body up tightly into a ball and saying "meeeeeep", without using any sort of outside forces to move it. According to her, it's something carried over from when she was a dust ball, as she would use that method to move.
* ReducedToDust: "Meet Agent Olo" has her telling the story of when she accidentally turned herself into a dust ball by accidentally knocking over the Dust-Ball-inator gadget. She couldn't speak, nor could she move very far, only being able to move by curling into a tight ball and saying "meeeeeep". She remained as a dust ball for nearly a month until she landed on the gadget and a passing Scientist kicked the activation button with his foot, causing her to turn back to normal. Not a few minutes later, she scored an interview with Olympia on ''[=OddTube=]''.
* SoundEffectBleep: The "meeeeeep" noise she makes has shades of this, though there's no swearing in any part of the franchise. Eventually it fell into MemeticMutation territory among the fandom, and some began to use it in place of swear words.


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!!Ogg
[[quoteright:752:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_08_16_at_23_48_34_olympias_day_otiss_daymp4.png]]
-> Played by: Tomaso Sanelli

One of the inhabitants of Olympia's room in "Olympia's Day", who ends up owning the entire room at the end of the episode.

* DarkHorseVictory: In "Olympia's Day", he ends up being the sole owner of Olympia's room out of sixteen agents that Olympia brings in to fill the spots, by way of DrawingStraws.
* MeaningfulName: His name -- assuming it actually ''is'' Ogg and [[TheQuietOne not just a moan]] -- is an onomatopoeic spelling of his frequent moaning and groaning.
* MellowFellow: He is very cynical, frequently speaks in groans, and shows very little emotion. This puts him in contrast with fellow GenkiGirl Olympia, whose actions in "Olympia's Day" cause her to undergo SanitySlippage in a way that makes Ogg feel uncomfortable and threatened by her.
* MessyHair: Has a scruffy head of brown hair.
* TheQuietOne: He speaks mostly in moans and groans, and only has a sparse few lines where he actually communicates in words.
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!!Odie
[[quoteright:479:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_07_24_at_03_49_31_curious_case_of_piratitis_oscar_with_ray_0webp_webp_image_601_962_pixels_scaled_79.png]]
-> Played by: Percy Hines White

The Lab Director of the precinct in the next town over from Toronto [[WhereTheHellIsSpringfield (wherever that is)]].

* BrainwashedAndCrazy: "Oscar Strikes Back" sees him as one of the many Scientists under the megalomaniac Obbs's mind control, and he antagonizes Oscar ''far'' worse than he did in "The Curious Case of Pirate-itis".
* ExcellentJudgeOfCharacter: When Oscar comments on how Obbs is showy, Odie takes one look at his entrance and determines that he is, indeed, a little showy. This is only a minute before he gets put under mind control by Obbs.
* GadgeteerGenius: Like Oscar, his stock-in-trade is gadgetry, and he's shown to well know his way around a gadget.
* HairOfGoldHeartOfGold: His hair is blonde, and he is firmly on the heroes' side.
* LiteralMinded: As part of his stupidity under Obbs's mind control, he takes his master's commands pretty literally. Telling him to take an entire box of tissues to clean himself will result in him using the box itself as a cleaning tool rather than a bunch of tissues.
* PlagiarismInFiction: Odie has a raging hatred for Oscar because he stole his haircut designs, which is, of course, treated as absolute SeriousBusiness by both Olive and Otto. Once he realizes that Oscar stole his haircut designs out of jealousy and respect and not out of any malicious intent, they make up and become friends again, and Odie eventually gets an original hairstyle (though not without Oscar becoming jealous over it).




!!O'Fur
Six kittens who are all agents of Odd Squad. Four of them serve as Oprah's skilled code-breakers, and all of them share the same name.

* CatsAreSuperior: Played with. None of them think they're superior than other animal species both odd and normal, but they are all referred to as "genius kittens" by Olympia who are incredibly skilled at cracking codes and are bested only by Odd Todd.
* CuteKitten: All of them are feline agents who just so happen to wear snazzy jackets.
* CutenessProximity: When Olympia lays eyes on them, she can't help but "aww" at them.
* IdenticallyNamedGroup: There are numerous non-human agents at Odd Squad, but these six kittens all share the same name of "O'Fur" and four of them share the same role of cracking codes for Oprah.



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[[folder: ''Odd Squad: World Turned Odd'' Characters]]
!!Odena
[[quoteright:307:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_07_24_at_03_26_36_a_world_turned_odd_full_episodemp4.png]]
-> Played by: Amy Khou

Odd Todd's right-hand agent in the BadFuture.

* AsianAndNerdy: She is Asian, wears glasses and braces, and is shown to have some incredible capability as Odd Todd's [[TheDragon second-in-command]] (though not without her dumb moments).
* CanonForeigner: She never appears in any other franchise material outside of ''Film/OddSquadWorldTurnedOdd'', and isn't even an employee of Precinct 13579 in the present day.
* TheDragon: Out of the agents in the Todd Squad, she serves as this to Odd Todd in the BadFuture.
* GadgeteerGenius: Her first appearance in the movie shows her attempting to fix a piece of metal, presumably from a gadget, using a blowtorch. This is how Oona, returning to her Lab after time-traveling, manages to run into her and realize that something is ''very'' wrong.
* MyMasterRightOrWrong: Zig-zagged. She shows a few signs of defecting from the Todd Squad, especially when she finds that she has been afflicted with oddness in the form of her face glowing green whenever she tugs on her right earlobe. However, in spite of wanting her oddness fixed, she remains loyal to Odd Todd and has no problem antagonizing Oprah and the others along with him.
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!!O'Beth
[[quoteright:536:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_07_13_at_16_45_33_threes_company_behind_enemy_mimesmp4.png]]
-> Played by: Lisa Pryce

One of the two agents of the IT department at Precinct 13579, the other being O'Seth, her cousin.

* AllGirlsLikePonies: She likes unicorns.
* ClashingCousins: Averted. She and O'Seth have a good relationship and hardly argue with each other.


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[[folder:One-Shot Agents]]
!!O'Seth
[[quoteright:330:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_07_13_at_17_08_04_high_maintenance_not_ok_computermp4.png]]
-> Played by: Anton Gillis-Adelman

One of the two agents of the IT department at Precinct 13579, the other being O'Beth, his cousin.

* ClashingCousins: Averted. He and O'Beth hardly ever get into an argument and are on good grounds with each other.

!!October
[[quoteright:614:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_07_13_at_17_33_34_hands_on_a_desk_chair_theres_no_o_in_o_botmp4.png]]
-> Played by: Kiara Groulx

An Investigation agent who only works during the month of October.

* MeaningfulName: Her name is October, and she only works in October.
* RulesLawyer: If her stopping her co-workers from carrying heads of lettuce in Headquarters due to a rule that prohibits such is any indication.
* UltimateJobSecurity: For working only a single month out of the year, it's impressive how she's able to keep her job.
* YouShallNotPass: Her one and only appearance involves her stopping Olympia, Orchid and Ocean from proceeding with the heads of lettuce they're carrying because they're breaking a rule, only for them to remind her that it's not October, and thus should not be working. After that, she lets them pass.
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[[folder:One-Shot Villains]]
!!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.


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[[folder:Other Agents]]

!!Agents Oren and Olaf
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/129fcc_1.jpg]]
[[caption-width-right:350:Oren (left) and Olaf (right)]]
-> Played by: Brendan Heard (Oren) and Eshaan Buadwal (Olaf)
Two recurring supporting characters. They are often opponents of Otto and Olive.

* AbsurdPhobia: Oren seems to be scared of pancakes.
* BlatantLies: During a "Meet the Agents" sequence, Oren says that he's great at sharing (followed by a clip of him and Olaf fighting Olive and Otto over new office chairs) and that's he's a very hard worker (followed by a clip of him and Olaf lounging in the ball pit).
* CatchPhrase: For Olaf: "I'm Olaf!"
* {{Cloudcuckoolander}}: Olaf is possibly the most odd-ball member of Odd Squad, which is saying something.
* HiddenDepths: Olaf tends to be simple-minded, but can have surprising moments of genius. For example, in one episode, Otto keeps shrinking and Olive has to team up with Oren and Olaf to find a cure. Olaf proves to be the only one who knows the secret to reversing the shrinking, and his normally very limited vocabulary begins to approach SesquipedalianLoquaciousness.
* ItsAllAboutMe: Oren.
* NoodleIncident: "If Ms. O offers to send you to Blobsylvania to count blobs, DO. NOT. GO." Subverted in that we get to see a clip of Oren and Olaf counting blobs.[[note]]It's from the end of the Blob on the Job episode.[[/note]]
* PerpetualSmiler: Olaf is almost always happy and excited, which sometimes gets on Oren's nerves.
* TheReveal: [[spoiler: Olaf is a werewolf]]
* SitcomArchNemesis: To Olive and Otto.
* ThoseTwoGuys: Agents who appear every so often to annoy our heroes.
* TrademarkFavoriteFood: Olaf loves potatoes.
* TrueCompanions: Really do care for each other.

!!Agent Orchid
[[quoteright:219:https://static.tvtropes.org/pmwiki/pub/images/agent_orchid.jpg]]
-> Played by: Michela Luci
One of the younger agents, she is sassy and particular.

* CharacterDevelopment: Season 3 had her go from being TheDreaded agent with an attitude problem to an agent who, while still viewed in a negative light by others, is more tolerant of others' actions.
* CuteAndPsycho: Orchid is to be feared.
* TheDreaded: Just hearing they have to deal with her can make Otis groan.
* LittleMissSnarker: Always has something vaguely rude/insulting to say.
* SitcomArchNemesis: She and Otis aren't fond of each other. Neither are her and Otto, as they share an implied bad history.

!!Agents Octavia and Oz
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/kids_mezzannine_16x9_883jpgresize454x255.png]]
-> Played by: Julia Lalonde (Octavia) and Carson Reaume (Oz)

Octavia, another agent, will appear here and there in Season One. She is not the smartest tool in the shed, but always tries to be helpful. Her partner, Oz, is only seen in flashbacks, and for good reason.

* TheDitz: Agent Octavia. She doesn't always understand things.
* {{Invisibility}}: Agent Oz, thanks to looking at a gadget the wrong way.
* NiceGirl: Octavia is there to help, even if she doesn't know what's she's doing.

!!Agent Ohlm
[[quoteright:219:https://static.tvtropes.org/pmwiki/pub/images/agent_ohlm.jpg]]
-> Played by: Jaiden Cannatelli
Introduced in the first season finale. Quite dimwitted.
----
* BondVillainStupidity: [[spoiler:Ohlm was so focused on getting revenge on Odd Squad that he didn't stop to think about himself getting sucked into his own black hole. He could have used a getaway vehicle or something to escape his own doom.]]
* CrouchingMoronHiddenBadass: While looking and acting dumb, he is still a good agent and succeeds in getting the remote for the Puppy Ray back.
* EvilAllAlong: [[spoiler:Revealed to have been plotting to take down Odd Squad since he started working here, because he wasn't made the Big O immediately upon graduating the Academy.]]
* {{Foil}}: To Olympia. [[spoiler: Both of them were excellent students at the Odd Squad Academy. But while Olympia was happy to just be an agent, Ohlm wanted to become the Big O immediately. This resulted in him plotting to take over Odd Squad]].
* FourEyesZeroSoul: [[spoiler:When Ohlm reveals his true colors in the Season 2 finale, he puts on a pair of glasses.]]
* KnightOfCerebus: Hey you know all those AffablyEvil villains on the show who are rather good friends with the Squad? [[spoiler:Well you're not going to find any of those traits in this child.]]
* LastEpisodeNewCharacter: Season 1 ends with Ohlm being introduced as Otto's temporary new partner, and continues to appear throughout Season 2 as a recurring character.
* ObfuscatingStupidity: [[spoiler:He used his dumbness to hide his real plans to destroy Odd Squad.]]
* RepetitiveName: His full name is Ohlm Ohlm.
* UngratefulBastard: [[spoiler:You'd think that Ohlm would have been grateful that the agents were willing to save his life after they found out his true colors, but no, he continues threatening to destroy the company after they closed his black hole and doesn't even thank them. Yeah, he had that grounding coming.]]
* WalkingSpoiler: [[spoiler: He's been faking his ditziness to help villains to sabotage his precinct, so he could manipulate events to get Ms. O fired and destroy Odd Squad.]]
* YouAreGrounded: [[spoiler:Is grounded by his parents when defeated by Ms. O.]]

!!Agent Obfusco
[[quoteright:219:https://static.tvtropes.org/pmwiki/pub/images/agent_obfusco.jpg]]
-> Played by: Jaeden Noel
He's an expert on dealing with oddities and trains current agents. However, he talks in a weird way, which means it's hard for agents to understand him.

* TheDreaded: All you have to do is mention his ''name'', and the agents will scream in his presence.
* HypocriticalHumor: He complains nobody can understand his sister.
* MeaningfulName: ''Obfuscate,'' meaning to "render [something] unintelligible" or to "bewilder".
* StealthPun: Agent Obfusco has a plant named... [[Music/LedZeppelin Robert.]]
* TalkativeLoon: Agent Obfusco speaks almost exclusively in MeaninglessMeaningfulWords, InsaneTrollLogic, WordSaladPhilosophy, and SesquipedalianLoquaciousness. Without his mustache, he talks normally.

!!Dr. O
[[quoteright:219:https://static.tvtropes.org/pmwiki/pub/images/agent_dro.jpg]]
-> Played by: Peyton Kennedy
Obviously, the Doctor of Precinct 13579.
* AlwaysIntroducesThemselves: A standard conversation with her will often start with “Hello I’m Dr. O, we work together at Odd Squad” “Yes I know who you are”. She has done this even to people she was talking to shortly before or should know well (like when she reminds Oscar of the time they went on a mission together).
* BizarreTasteInFood: Her favourite food is apparently unicorn tears.
* CatchPhrase: "Trust me, I'm a doctor".
** Also "WHAT'S NEXT??".
* ChildProdigy: While all agents of Odd Squad can count as this to various extents, Dr. O is a notable example due to her claim of having gone through eight years of medical school to become a doctor. While how and where she did this is not shown, the fact that TheMovie shows her [[spoiler: working in what appears to be a real hospital after Odd Squad is shut down]] indicates her qualifications are not only real but are also recognized by adults.
* TheComicallySerious: She is less prone to acting silly, and gets down to business. Her abrupt deadpan and straight face contrast with everyone else's behavior, making her funny.
* ImADoctorNotAPlaceholder: Dr. O is always reminding everyone that she's a doctor.
* LabCoatOfScienceAndMedicine: Wears a labcoat over her Odd Squad medical uniform. Unlike the white labcoats of the scientists, hers is a light blue. Also, while all scientists are shown wearing their own labcoats, minor and background medical staff do not, suggesting the labcoat is specifically part of her position as the head Odd Squad doctor.
* TheMedic: Is the main Doctor of Precinct 13579 before being PutOnABus in Season 2 (see below).
* PutOnABus: Departs for the Odd Squad Space Station in "Doctor O, Party Time, Excellent."
* SuperDoc: The only one at Precinct 13579, and knows how to treat both oddities and normal illnesses.
** In a bit of a subversion, it's implied that she is NOT a good doctor, considering she always tells her patients "I tried my best.", according to her.
* TrustMeImAnX: She says stuff like this often.

!!Agent Oksana
[[quoteright:222:https://static.tvtropes.org/pmwiki/pub/images/kids_mezzannine_16x9_789jpgresize454x255.jpg]]
-> Played by: Madeleine Barbeau
The cook of the precinct. Is neither talkative nor emotional.

* AbsurdlyDedicatedWorker: In TheMovie, Odd Squad is shut down. However, Oscar and Ms. O discover that's she's still cooking and making food there.
* TheComicallySerious: Even more than Dr. O: her EmotionlessGirl tendencies mixed with her sarcasm make her hilarious to viewers, though scary to her teammates.
* CrazyPrepared: Always keeps pudding on hand in case of a invisible dinosaur invasion. It was even in her video guide.
* CreepyMonotone: Speaks in one.
* DeadpanSnarker: Many of her lines are sarcastic, and she's ''actually'' deadpan.
* EmotionlessGirl: You'll get no reaction from her.
* JerkWithAHeartOfGold: Makes unreasonable demands in "Agent Oksana's Kitchen Nightmares" (like multiple bars of gold), but it's eventually revealed that she needs the items to get the best food for the squad.
* TeamChef: Until the events of "Dr. O No", she is the sole cook of #13579. Whether she is a SupremeChef or CordonBleughChef is unknown, though evidence points to the former.

!!Ocean
[[quoteright:301:https://static.tvtropes.org/pmwiki/pub/images/unknown_1_91.jpeg]]
-> Played by: Elijah Sandiford
A new employee, he works with odd creatures. He's an expert at dealing with them and taking care of them.

* FluffyTamer: His expertise extends to frightening animals, and cares for them as well.
* FriendToAllLivingThings: He is very fond of creatures and will risk his life to give one the chance of survival.
* MellowFellow: So laid-back it's amazing he doesn't slide out of his hammock onto the floor.
* NatureLover: Comes with his love of animals.
* TheWatson: Ends up having to ask the questions, such as in "A Case of the Sillies" where he needs to know about measurement quantities.

!!O'Donahue
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_04_27_2_12.png]]
-> Played by: Tate Yap
Oprah's former partner who worked at Odd Squad until the 1980s, when he quit due to failure in solving a case. As of "Happy Halfiversary", he is unretired and works as an undercover Investigation agent for Oprah.

* TheCharmer: In "Totally Odd Squad", it's shown that he has no issue flirting with his boss. Unfortunately, any romantic feelings he has for her is [[AllLoveIsUnrequited completely one-sided on his end.]]
* [[invoked]] DisabledCharacterDisabledActor: Played with. Tate Yap wears a hearing aid in real life, but it's never revealed whether O'Donahue has any sort of hearing impairment.
* EnemyMime: Becomes one as part of TheInfiltration seen in "Behind Enemy Mimes".
* FirstNameBasis: He is one of the few who is allowed to call Oprah by just that: Oprah, instead of her job title, "Ms. O". This is due to the fact that they were partners, and so she has no issue with him referring to her as Oprah.
* HawaiianShirtedTourist: He often is shown wearing a blue Hawaiian shirt under his navy jacket instead of the white button-down undershirt most Investigation agents wear, and also donned a red one in "Behind Enemy Mimes". He also wears a Hawaiian shirt as a fisherman.
* HeroesGoneFishing: He became a fisherman after retiring from Odd Squad, and remained as one for thirty years until Oprah begged for his help solving a cold case and he had a HesBack moment.
* HorribleHousing: ''Film/OddSquadWorldTurnedOdd'' shows that O'Donahue's house is situated in a deep part of the woods, with only a table with three chairs and a bench as furniture. It's not made clear if this is his place of residence in the show, however.
* MandatoryUnretirement: He willingly came out of retirement in "The One That Got Away" when Oprah went to him for help in catching a villain who was stealing half of everything. By the end of the episode, it's implied that he went back into retirement right after solving one more case revolving around shoes being stolen from people, but "Happy Halfiversary" shows that he is back working for Odd Squad as an Investigation agent, having been attempting to make peace with the Queen of the Ice Trolls for five years, while "Behind Enemy Mimes" reveals that he is secretly working undercover for Oprah performing an [[TheInfiltration infiltration]] of a villain trio known as the [[EnemyMime Thrimes.]]
* NamedAfterSomebodyFamous: He's named after Creator/PhilDonahue, someone who directly influenced Creator/OprahWinfrey -- fitting, considering he's Oprah's former partner and almost always has her back.
* ThatOneCase: He quit Odd Squad due to failing to solve a case regarding a villain stealing half of various things, leaving his symbol behind as parting gifts. Thirty years later, in "The One That Got Away", he revisits the case with Oprah after she asks for his assistance, and the two manage catch Equal Evan, the villain in question.
* TimePassageBeard: Subverted. When Oprah comes across him in "The One That Got Away", he's shown with a full beard. However, it's revealed that the beard is fake when he rips it off while doing a SpyTuxReveal.
* TotallyRadical: Spoke in a combination of this and ValleyGirl often back in the 1980's. He takes it down a notch in modern times.
* TrueCompanions: With Oprah. Even long after he quits, the two remain close.
* UndyingLoyalty: ''Film/OddSquadWorldTurnedOdd'' reveals that even in a crapsack VillainWorld, O'Donahue will absolutely ''refuse'' to turn to the odd side because "I do no odd."
* VocalEvolution: His voice gets noticeably deeper beginning in Season 2.

!!New Dr. O / Olly
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_03_06_2_28_mp4.png]]
-> Played by: Sasha Steiner
Dr. O's initial replacement before being transferred to the Food and Beverage department and becoming Oksana's replacement.

* AccidentalMisnaming: She has a tendency to mispronounce Oona's name often.
* BestFriend: In "Dr. O No", Oona becomes New Dr. O's go-to person if she needs help with her Odd Squad Doctor duties, and she quickly becomes friends with her. However, the friendship is completely one-sided on New Dr. O's end, as she fails to realize just how much her antics are stressing Oona out.
* BigBrotherIsWatching: She's convinced that Precinct 13579's cafeteria workers are constantly watching people and are evil to boot.
* {{Cloudcuckoolander}}: By ''God,'' is this girl eccentric -- to the point where she even manages to unnerve ''Oona,'' who is a GeniusDitz herself. She's arguably one of the zaniest characters seen on the show, and that's saying something.
* ComicallyIneptHealing: In "Dr. O No", it's clear that she has no idea how to cure odd illnesses, and even with Oona helping her out she's still incompetent. Unsurprisingly, she is transferred to the Food and Beverage department at the end of the episode.
* InnocentlyInsensitive: Her debut episode, "Dr. O No", has her be completely oblivious to Oona's needs and feelings, which causes the Scientist to grow increasingly frustrated and stressed to the point where Ms. O, asking about a patient with tentacle feet, manages to make her hit her RageBreakingPoint.
* LabcoatOfScienceAndMedicine: She wears one of these while working in the Medical department.
* LeaderWannabe: In "Hands on a Desk Chair", she attempts to join in on the competition to see who gets to be Precinct 13579's Director for a day, only for Olympia, Ocean and Orchid to protest. She doesn't get far before Orchid effectively scares her into changing her mind.
* MeaningfulRename: Following the events of "Dr. O No", she is referred to as "Olly", which signifies her not being a part of the Medical department anymore (and no longer filling the role of being the former Dr. O's replacement). It's also an O name like what all other agents of Odd Squad have.
* OffscreenTeleportation: New Dr. O manages to not only swap out Oona's white undershirt for an "anti-caf" shirt within seconds, but she also manages to somehow slip a flatbread sandwich into her pocket, without touching her once.
* StealthHiBye: She has the ability to do this, which is best demonstrated in "Dr. O No" when she manages to pop up next to Oona, who is all the way in Yellowstone National Park.
* SupremeChef: Like Oksana before her, New Dr. O is a very skilled chef.
* WhoNamesTheirKidDude: "New Dr. O" is revealed to be the name that she was born with, and because of it, Ms. O promotes her to be Dr. O's replacement. However, it's soon revealed that "New Dr. O" isn't as skilled at being in the Medical field as previously thought, and as a result, Ms. O moves her to the Food and Beverage department. She is renamed "Olly" in "Haunt Squad" and is referred to as such from that episode onwards.
* YouAreWhatYouHate: She shows complete disdain for Odd Squad cafeteria workers for no apparent reason, and tries to get Oona to hate them as well. By the end of "Dr. O No", she's transferred to the Food and Beverage department and becomes a cafeteria worker herself.

!! Xavier and Xena
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_03_08_2_22_0.png]]
-> Played by: Leonidas Castrounis (Xavier) and Sheena Darnley (Xena)
A partner pair from the Task Force department who are sent by the Big O to monitor Precinct 13579 in Season 2.

* AffectionHatingKid: They hate hugging and kissing. Xavier in particular also hates handshakes.
* BullyingTheDisabled: Xavier is more than willing to take Olympia's glasses with him when he and Xena begin marking things from Precinct 13579 that they wish to take with them when it gets shut down. Since Anna Cathcart does wear glasses in real life, if Xavier took Olympia's glasses, she'd potentially be BlindWithoutEm.
* DisabilityAsAnExcuseForJerkassery: Xena is disabled and uses a wheelchair to get around. While she doesn't use her disability to excuse her actions, her being in a wheelchair, Odd Squad's modus operandi of equality (as well as the overall show's theme of diversity), and her high status in the organization's hierarchy are potential reasons why agents don't confront her for what she's done.
* TheDividual: They are never seen apart and always work together as a partner pair.
* EveryoneHasStandards: They may be more than willing to mistreat other agents and take their workplace away from them, but when it comes to firing Orson in "Saving Agent Orson", seeing that he has superpowers like [[{{Sizeshifter}} sizeshifting]] and [[{{Flight}} flight]] is enough to scare them into admitting defeat and letting him stay.
* EvilCounterpart: Both agents serve as these to Owen and the rest of the Security department. Not only is the Task Force department logo an evil version of Security's (with the keyhole flipped upside down and being colored black), but while Xavier and Xena are selfish and greedy and have little regard for others' well-being, Owen and the other Security agents are laid-back and are generally affable. In addition, Owen in particular can be unhelpful, but doesn't have any malicious intent behind his actions.
* GenderFlip: Xena was originally referred to as male in casting call scripts, while Xavier was of an AmbiguousGender. In the series proper, Xena is female and Xavier is male.
* GoldColoredSuperiority: They both wear gold as part of their outfits, and have a lot of gold-colored objects in their office.
* HateSink: Both of them effectively serve as these, what with their mistreatment of Precinct 13579's agents, their selfishness, and their actions being more villainous than heroic -- not to mention they are both [[KarmaHoudini Karma Houdinis]] by the season's end.
* HypercompetentSidekick: Both of them work directly under the Big O, who is a CluelessBoss. Despite the fact that he doesn't seem to know them, however (shown in "Who is Agent Otis?" when he refers to them as "you other guys"), they are more than happy to carry out his orders. As of Season 3, it's unclear if they fulfill this role to [[spoiler:Oprah, who becomes the new Big O.]]
* KarmaHoudini: Neither one of them get any sort of comeuppance for their misdeeds, and their final appearance in Season 2 is them departing from Precinct 13579 following [[spoiler:the Big O firing Oprah and Otis from Odd Squad.]]
* LackOfEmpathy: Even when agents' physical and mental health are suffering, they show absolutely no empathy...that is, for anyone but themselves.
* LetterMotif: Xavier and Xena, like others in the Task Force department, are referred to as "the X's". They also wear X-shaped buttons on their jackets, and Xena wears bobby pins in her hair that form an X shape.
* MeaningfulRename: Xavier and Xena were initially named "Oke" [[note]]A South African term used to address a boy[[/note]] and [[PunnyName "Opaganda"]] in casting call scripts, respectively, before being renamed. While casting calls for "Oke" were looking for an actor who was African-Canadian to play the character, "Opaganda" was originally meant to be the personification of propaganda -- something that would have been a bit too mature of a subject matter for Creator/PBSKids to allow.
* MirthlessLaughter: They often laugh in a stiff, awkward, unisonant manner. Doubles as an EvilLaugh.
* RulesLawyer: Their job, and by extension their department's job, is to make sure that Odd Squad precincts are following rules. If they find that a precinct is not following rules, they have the power to shut them down permanently.
* ScrewTheRulesIMakeThem: In "Xs and Os", they have no problem with accusing Precinct 13579 of being over budget while also buying expensive things for themselves. Them doing so turns out to be the cause of the precinct's financial woes.
* SevenDeadlySins: Both Xavier and Xena have Greed, Pride and Wrath as their character-defining traits.

!! 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.

!!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]]

to:

[[folder:Other Agents]]

!!Agents Oren and Olaf
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/129fcc_1.jpg]]
[[caption-width-right:350:Oren (left) and Olaf (right)]]
-> Played by: Brendan Heard (Oren) and Eshaan Buadwal (Olaf)
Two recurring supporting characters. They are often opponents of Otto and Olive.

* AbsurdPhobia: Oren seems to be scared of pancakes.
* BlatantLies: During a "Meet the Agents" sequence, Oren says that he's great at sharing (followed by a clip of him and Olaf fighting Olive and Otto over new office chairs) and that's he's a very hard worker (followed by a clip of him and Olaf lounging in the ball pit).
* CatchPhrase: For Olaf: "I'm Olaf!"
* {{Cloudcuckoolander}}: Olaf is possibly the most odd-ball member of Odd Squad, which is saying something.
* HiddenDepths: Olaf tends to be simple-minded, but can have surprising moments of genius. For example, in one episode, Otto keeps shrinking and Olive has to team up with Oren and Olaf to find a cure. Olaf proves to be the only one who knows the secret to reversing the shrinking, and his normally very limited vocabulary begins to approach SesquipedalianLoquaciousness.
* ItsAllAboutMe: Oren.
* NoodleIncident: "If Ms. O offers to send you to Blobsylvania to count blobs, DO. NOT. GO." Subverted in that we get to see a clip of Oren and Olaf counting blobs.[[note]]It's from the end of the Blob on the Job episode.[[/note]]
* PerpetualSmiler: Olaf is almost always happy and excited, which sometimes gets on Oren's nerves.
* TheReveal: [[spoiler: Olaf is a werewolf]]
* SitcomArchNemesis: To Olive and Otto.
* ThoseTwoGuys: Agents who appear every so often to annoy our heroes.
* TrademarkFavoriteFood: Olaf loves potatoes.
* TrueCompanions: Really do care for each other.

!!Agent Orchid
[[quoteright:219:https://static.tvtropes.org/pmwiki/pub/images/agent_orchid.jpg]]
-> Played by: Michela Luci
One of the younger agents, she is sassy and particular.

* CharacterDevelopment: Season 3 had her go from being TheDreaded agent with an attitude problem to an agent who, while still viewed in a negative light by others, is more tolerant of others' actions.
* CuteAndPsycho: Orchid is to be feared.
* TheDreaded: Just hearing they have to deal with her can make Otis groan.
* LittleMissSnarker: Always has something vaguely rude/insulting to say.
* SitcomArchNemesis: She and Otis aren't fond of each other. Neither are her and Otto, as they share an implied bad history.

!!Agents Octavia and Oz
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/kids_mezzannine_16x9_883jpgresize454x255.png]]
-> Played by: Julia Lalonde (Octavia) and Carson Reaume (Oz)

Octavia, another agent, will appear here and there in Season One. She is not the smartest tool in the shed, but always tries to be helpful. Her partner, Oz, is only seen in flashbacks, and for good reason.

* TheDitz: Agent Octavia. She doesn't always understand things.
* {{Invisibility}}: Agent Oz, thanks to looking at a gadget the wrong way.
* NiceGirl: Octavia is there to help, even if she doesn't know what's she's doing.

!!Agent Ohlm
[[quoteright:219:https://static.tvtropes.org/pmwiki/pub/images/agent_ohlm.jpg]]
-> Played by: Jaiden Cannatelli
Introduced in the first season finale. Quite dimwitted.
----
* BondVillainStupidity: [[spoiler:Ohlm was so focused on getting revenge on Odd Squad that he didn't stop to think about himself getting sucked into his own black hole. He could have used a getaway vehicle or something to escape his own doom.]]
* CrouchingMoronHiddenBadass: While looking and acting dumb, he is still a good agent and succeeds in getting the remote for the Puppy Ray back.
* EvilAllAlong: [[spoiler:Revealed to have been plotting to take down Odd Squad since he started working here, because he wasn't made the Big O immediately upon graduating the Academy.]]
* {{Foil}}: To Olympia. [[spoiler: Both of them were excellent students at the Odd Squad Academy. But while Olympia was happy to just be an agent, Ohlm wanted to become the Big O immediately. This resulted in him plotting to take over Odd Squad]].
* FourEyesZeroSoul: [[spoiler:When Ohlm reveals his true colors in the Season 2 finale, he puts on a pair of glasses.]]
* KnightOfCerebus: Hey you know all those AffablyEvil villains on the show who are rather good friends with the Squad? [[spoiler:Well you're not going to find any of those traits in this child.]]
* LastEpisodeNewCharacter: Season 1 ends with Ohlm being introduced as Otto's temporary new partner, and continues to appear throughout Season 2 as a recurring character.
* ObfuscatingStupidity: [[spoiler:He used his dumbness to hide his real plans to destroy Odd Squad.]]
* RepetitiveName: His full name is Ohlm Ohlm.
* UngratefulBastard: [[spoiler:You'd think that Ohlm would have been grateful that the agents were willing to save his life after they found out his true colors, but no, he continues threatening to destroy the company after they closed his black hole and doesn't even thank them. Yeah, he had that grounding coming.]]
* WalkingSpoiler: [[spoiler: He's been faking his ditziness to help villains to sabotage his precinct, so he could manipulate events to get Ms. O fired and destroy Odd Squad.]]
* YouAreGrounded: [[spoiler:Is grounded by his parents when defeated by Ms. O.]]

!!Agent Obfusco
[[quoteright:219:https://static.tvtropes.org/pmwiki/pub/images/agent_obfusco.jpg]]
-> Played by: Jaeden Noel
He's an expert on dealing with oddities and trains current agents. However, he talks in a weird way, which means it's hard for agents to understand him.

* TheDreaded: All you have to do is mention his ''name'', and the agents will scream in his presence.
* HypocriticalHumor: He complains nobody can understand his sister.
* MeaningfulName: ''Obfuscate,'' meaning to "render [something] unintelligible" or to "bewilder".
* StealthPun: Agent Obfusco has a plant named... [[Music/LedZeppelin Robert.]]
* TalkativeLoon: Agent Obfusco speaks almost exclusively in MeaninglessMeaningfulWords, InsaneTrollLogic, WordSaladPhilosophy, and SesquipedalianLoquaciousness. Without his mustache, he talks normally.

!!Dr. O
[[quoteright:219:https://static.tvtropes.org/pmwiki/pub/images/agent_dro.jpg]]
-> Played by: Peyton Kennedy
Obviously, the Doctor of Precinct 13579.
* AlwaysIntroducesThemselves: A standard conversation with her will often start with “Hello I’m Dr. O, we work together at Odd Squad” “Yes I know who you are”. She has done this even to people she was talking to shortly before or should know well (like when she reminds Oscar of the time they went on a mission together).
* BizarreTasteInFood: Her favourite food is apparently unicorn tears.
* CatchPhrase: "Trust me, I'm a doctor".
** Also "WHAT'S NEXT??".
* ChildProdigy: While all agents of Odd Squad can count as this to various extents, Dr. O is a notable example due to her claim of having gone through eight years of medical school to become a doctor. While how and where she did this is not shown, the fact that TheMovie shows her [[spoiler: working in what appears to be a real hospital after Odd Squad is shut down]] indicates her qualifications are not only real but are also recognized by adults.
* TheComicallySerious: She is less prone to acting silly, and gets down to business. Her abrupt deadpan and straight face contrast with everyone else's behavior, making her funny.
* ImADoctorNotAPlaceholder: Dr. O is always reminding everyone that she's a doctor.
* LabCoatOfScienceAndMedicine: Wears a labcoat over her Odd Squad medical uniform. Unlike the white labcoats of the scientists, hers is a light blue. Also, while all scientists are shown wearing their own labcoats, minor and background medical staff do not, suggesting the labcoat is specifically part of her position as the head Odd Squad doctor.
* TheMedic: Is the main Doctor of Precinct 13579 before being PutOnABus in Season 2 (see below).
* PutOnABus: Departs for the Odd Squad Space Station in "Doctor O, Party Time, Excellent."
* SuperDoc: The only one at Precinct 13579, and knows how to treat both oddities and normal illnesses.
** In a bit of a subversion, it's implied that she is NOT a good doctor, considering she always tells her patients "I tried my best.", according to her.
* TrustMeImAnX: She says stuff like this often.

!!Agent Oksana
[[quoteright:222:https://static.tvtropes.org/pmwiki/pub/images/kids_mezzannine_16x9_789jpgresize454x255.jpg]]
-> Played by: Madeleine Barbeau
The cook of the precinct. Is neither talkative nor emotional.

* AbsurdlyDedicatedWorker: In TheMovie, Odd Squad is shut down. However, Oscar and Ms. O discover that's she's still cooking and making food there.
* TheComicallySerious: Even more than Dr. O: her EmotionlessGirl tendencies mixed with her sarcasm make her hilarious to viewers, though scary to her teammates.
* CrazyPrepared: Always keeps pudding on hand in case of a invisible dinosaur invasion. It was even in her video guide.
* CreepyMonotone: Speaks in one.
* DeadpanSnarker: Many of her lines are sarcastic, and she's ''actually'' deadpan.
* EmotionlessGirl: You'll get no reaction from her.
* JerkWithAHeartOfGold: Makes unreasonable demands in "Agent Oksana's Kitchen Nightmares" (like multiple bars of gold), but it's eventually revealed that she needs the items to get the best food for the squad.
* TeamChef: Until the events of "Dr. O No", she is the sole cook of #13579. Whether she is a SupremeChef or CordonBleughChef is unknown, though evidence points to the former.

!!Ocean
[[quoteright:301:https://static.tvtropes.org/pmwiki/pub/images/unknown_1_91.jpeg]]
-> Played by: Elijah Sandiford
A new employee, he works with odd creatures. He's an expert at dealing with them and taking care of them.

* FluffyTamer: His expertise extends to frightening animals, and cares for them as well.
* FriendToAllLivingThings: He is very fond of creatures and will risk his life to give one the chance of survival.
* MellowFellow: So laid-back it's amazing he doesn't slide out of his hammock onto the floor.
* NatureLover: Comes with his love of animals.
* TheWatson: Ends up having to ask the questions, such as in "A Case of the Sillies" where he needs to know about measurement quantities.

!!O'Donahue
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_04_27_2_12.png]]
-> Played by: Tate Yap
Oprah's former partner who worked at Odd Squad until the 1980s, when he quit due to failure in solving a case. As of "Happy Halfiversary", he is unretired and works as an undercover Investigation agent for Oprah.

* TheCharmer: In "Totally Odd Squad", it's shown that he has no issue flirting with his boss. Unfortunately, any romantic feelings he has for her is [[AllLoveIsUnrequited completely one-sided on his end.]]
* [[invoked]] DisabledCharacterDisabledActor: Played with. Tate Yap wears a hearing aid in real life, but it's never revealed whether O'Donahue has any sort of hearing impairment.
* EnemyMime: Becomes one as part of TheInfiltration seen in "Behind Enemy Mimes".
* FirstNameBasis: He is one of the few who is allowed to call Oprah by just that: Oprah, instead of her job title, "Ms. O". This is due to the fact that they were partners, and so she has no issue with him referring to her as Oprah.
* HawaiianShirtedTourist: He often is shown wearing a blue Hawaiian shirt under his navy jacket instead of the white button-down undershirt most Investigation agents wear, and also donned a red one in "Behind Enemy Mimes". He also wears a Hawaiian shirt as a fisherman.
* HeroesGoneFishing: He became a fisherman after retiring from Odd Squad, and remained as one for thirty years until Oprah begged for his help solving a cold case and he had a HesBack moment.
* HorribleHousing: ''Film/OddSquadWorldTurnedOdd'' shows that O'Donahue's house is situated in a deep part of the woods, with only a table with three chairs and a bench as furniture. It's not made clear if this is his place of residence in the show, however.
* MandatoryUnretirement: He willingly came out of retirement in "The One That Got Away" when Oprah went to him for help in catching a villain who was stealing half of everything. By the end of the episode, it's implied that he went back into retirement right after solving one more case revolving around shoes being stolen from people, but "Happy Halfiversary" shows that he is back working for Odd Squad as an Investigation agent, having been attempting to make peace with the Queen of the Ice Trolls for five years, while "Behind Enemy Mimes" reveals that he is secretly working undercover for Oprah performing an [[TheInfiltration infiltration]] of a villain trio known as the [[EnemyMime Thrimes.]]
* NamedAfterSomebodyFamous: He's named after Creator/PhilDonahue, someone who directly influenced Creator/OprahWinfrey -- fitting, considering he's Oprah's former partner and almost always has her back.
* ThatOneCase: He quit Odd Squad due to failing to solve a case regarding a villain stealing half of various things, leaving his symbol behind as parting gifts. Thirty years later, in "The One That Got Away", he revisits the case with Oprah after she asks for his assistance, and the two manage catch Equal Evan, the villain in question.
* TimePassageBeard: Subverted. When Oprah comes across him in "The One That Got Away", he's shown with a full beard. However, it's revealed that the beard is fake when he rips it off while doing a SpyTuxReveal.
* TotallyRadical: Spoke in a combination of this and ValleyGirl often back in the 1980's. He takes it down a notch in modern times.
* TrueCompanions: With Oprah. Even long after he quits, the two remain close.
* UndyingLoyalty: ''Film/OddSquadWorldTurnedOdd'' reveals that even in a crapsack VillainWorld, O'Donahue will absolutely ''refuse'' to turn to the odd side because "I do no odd."
* VocalEvolution: His voice gets noticeably deeper beginning in Season 2.

!!New Dr. O / Olly
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_03_06_2_28_mp4.png]]
-> Played by: Sasha Steiner
Dr. O's initial replacement before being transferred to the Food and Beverage department and becoming Oksana's replacement.

* AccidentalMisnaming: She has a tendency to mispronounce Oona's name often.
* BestFriend: In "Dr. O No", Oona becomes New Dr. O's go-to person if she needs help with her Odd Squad Doctor duties, and she quickly becomes friends with her. However, the friendship is completely one-sided on New Dr. O's end, as she fails to realize just how much her antics are stressing Oona out.
* BigBrotherIsWatching: She's convinced that Precinct 13579's cafeteria workers are constantly watching people and are evil to boot.
* {{Cloudcuckoolander}}: By ''God,'' is this girl eccentric -- to the point where she even manages to unnerve ''Oona,'' who is a GeniusDitz herself. She's arguably one of the zaniest characters seen on the show, and that's saying something.
* ComicallyIneptHealing: In "Dr. O No", it's clear that she has no idea how to cure odd illnesses, and even with Oona helping her out she's still incompetent. Unsurprisingly, she is transferred to the Food and Beverage department at the end of the episode.
* InnocentlyInsensitive: Her debut episode, "Dr. O No", has her be completely oblivious to Oona's needs and feelings, which causes the Scientist to grow increasingly frustrated and stressed to the point where Ms. O, asking about a patient with tentacle feet, manages to make her hit her RageBreakingPoint.
* LabcoatOfScienceAndMedicine: She wears one of these while working in the Medical department.
* LeaderWannabe: In "Hands on a Desk Chair", she attempts to join in on the competition to see who gets to be Precinct 13579's Director for a day, only for Olympia, Ocean and Orchid to protest. She doesn't get far before Orchid effectively scares her into changing her mind.
* MeaningfulRename: Following the events of "Dr. O No", she is referred to as "Olly", which signifies her not being a part of the Medical department anymore (and no longer filling the role of being the former Dr. O's replacement). It's also an O name like what all other agents of Odd Squad have.
* OffscreenTeleportation: New Dr. O manages to not only swap out Oona's white undershirt for an "anti-caf" shirt within seconds, but she also manages to somehow slip a flatbread sandwich into her pocket, without touching her once.
* StealthHiBye: She has the ability to do this, which is best demonstrated in "Dr. O No" when she manages to pop up next to Oona, who is all the way in Yellowstone National Park.
* SupremeChef: Like Oksana before her, New Dr. O is a very skilled chef.
* WhoNamesTheirKidDude: "New Dr. O" is revealed to be the name that she was born with, and because of it, Ms. O promotes her to be Dr. O's replacement. However, it's soon revealed that "New Dr. O" isn't as skilled at being in the Medical field as previously thought, and as a result, Ms. O moves her to the Food and Beverage department. She is renamed "Olly" in "Haunt Squad" and is referred to as such from that episode onwards.
* YouAreWhatYouHate: She shows complete disdain for Odd Squad cafeteria workers for no apparent reason, and tries to get Oona to hate them as well. By the end of "Dr. O No", she's transferred to the Food and Beverage department and becomes a cafeteria worker herself.

!! Xavier and Xena
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_03_08_2_22_0.png]]
-> Played by: Leonidas Castrounis (Xavier) and Sheena Darnley (Xena)
A partner pair from the Task Force department who are sent by the Big O to monitor Precinct 13579 in Season 2.

* AffectionHatingKid: They hate hugging and kissing. Xavier in particular also hates handshakes.
* BullyingTheDisabled: Xavier is more than willing to take Olympia's glasses with him when he and Xena begin marking things from Precinct 13579 that they wish to take with them when it gets shut down. Since Anna Cathcart does wear glasses in real life, if Xavier took Olympia's glasses, she'd potentially be BlindWithoutEm.
* DisabilityAsAnExcuseForJerkassery: Xena is disabled and uses a wheelchair to get around. While she doesn't use her disability to excuse her actions, her being in a wheelchair, Odd Squad's modus operandi of equality (as well as the overall show's theme of diversity), and her high status in the organization's hierarchy are potential reasons why agents don't confront her for what she's done.
* TheDividual: They are never seen apart and always work together as a partner pair.
* EveryoneHasStandards: They may be more than willing to mistreat other agents and take their workplace away from them, but when it comes to firing Orson in "Saving Agent Orson", seeing that he has superpowers like [[{{Sizeshifter}} sizeshifting]] and [[{{Flight}} flight]] is enough to scare them into admitting defeat and letting him stay.
* EvilCounterpart: Both agents serve as these to Owen and the rest of the Security department. Not only is the Task Force department logo an evil version of Security's (with the keyhole flipped upside down and being colored black), but while Xavier and Xena are selfish and greedy and have little regard for others' well-being, Owen and the other Security agents are laid-back and are generally affable. In addition, Owen in particular can be unhelpful, but doesn't have any malicious intent behind his actions.
* GenderFlip: Xena was originally referred to as male in casting call scripts, while Xavier was of an AmbiguousGender. In the series proper, Xena is female and Xavier is male.
* GoldColoredSuperiority: They both wear gold as part of their outfits, and have a lot of gold-colored objects in their office.
* HateSink: Both of them effectively serve as these, what with their mistreatment of Precinct 13579's agents, their selfishness, and their actions being more villainous than heroic -- not to mention they are both [[KarmaHoudini Karma Houdinis]] by the season's end.
* HypercompetentSidekick: Both of them work directly under the Big O, who is a CluelessBoss. Despite the fact that he doesn't seem to know them, however (shown in "Who is Agent Otis?" when he refers to them as "you other guys"), they are more than happy to carry out his orders. As of Season 3, it's unclear if they fulfill this role to [[spoiler:Oprah, who becomes the new Big O.]]
* KarmaHoudini: Neither one of them get any sort of comeuppance for their misdeeds, and their final appearance in Season 2 is them departing from Precinct 13579 following [[spoiler:the Big O firing Oprah and Otis from Odd Squad.]]
* LackOfEmpathy: Even when agents' physical and mental health are suffering, they show absolutely no empathy...that is, for anyone but themselves.
* LetterMotif: Xavier and Xena, like others in the Task Force department, are referred to as "the X's". They also wear X-shaped buttons on their jackets, and Xena wears bobby pins in her hair that form an X shape.
* MeaningfulRename: Xavier and Xena were initially named "Oke" [[note]]A South African term used to address a boy[[/note]] and [[PunnyName "Opaganda"]] in casting call scripts, respectively, before being renamed. While casting calls for "Oke" were looking for an actor who was African-Canadian to play the character, "Opaganda" was originally meant to be the personification of propaganda -- something that would have been a bit too mature of a subject matter for Creator/PBSKids to allow.
* MirthlessLaughter: They often laugh in a stiff, awkward, unisonant manner. Doubles as an EvilLaugh.
* RulesLawyer: Their job, and by extension their department's job, is to make sure that Odd Squad precincts are following rules. If they find that a precinct is not following rules, they have the power to shut them down permanently.
* ScrewTheRulesIMakeThem: In "Xs and Os", they have no problem with accusing Precinct 13579 of being over budget while also buying expensive things for themselves. Them doing so turns out to be the cause of the precinct's financial woes.
* SevenDeadlySins: Both Xavier and Xena have Greed, Pride and Wrath as their character-defining traits.

!! 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.

!!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]]




to:

[[folder:Other Agents]]

!!Agents Oren and Olaf
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/129fcc_1.jpg]]
[[caption-width-right:350:Oren (left) and Olaf (right)]]
-> Played by: Brendan Heard (Oren) and Eshaan Buadwal (Olaf)
Two recurring supporting characters. They are often opponents of Otto and Olive.

* AbsurdPhobia: Oren seems to be scared of pancakes.
* BlatantLies: During a "Meet the Agents" sequence, Oren says that he's great at sharing (followed by a clip of him and Olaf fighting Olive and Otto over new office chairs) and that's he's a very hard worker (followed by a clip of him and Olaf lounging in the ball pit).
* CatchPhrase: For Olaf: "I'm Olaf!"
* {{Cloudcuckoolander}}: Olaf is possibly the most odd-ball member of Odd Squad, which is saying something.
* HiddenDepths: Olaf tends to be simple-minded, but can have surprising moments of genius. For example, in one episode, Otto keeps shrinking and Olive has to team up with Oren and Olaf to find a cure. Olaf proves to be the only one who knows the secret to reversing the shrinking, and his normally very limited vocabulary begins to approach SesquipedalianLoquaciousness.
* ItsAllAboutMe: Oren.
* NoodleIncident: "If Ms. O offers to send you to Blobsylvania to count blobs, DO. NOT. GO." Subverted in that we get to see a clip of Oren and Olaf counting blobs.[[note]]It's from the end of the Blob on the Job episode.[[/note]]
* PerpetualSmiler: Olaf is almost always happy and excited, which sometimes gets on Oren's nerves.
* TheReveal: [[spoiler: Olaf is a werewolf]]
* SitcomArchNemesis: To Olive and Otto.
* ThoseTwoGuys: Agents who appear every so often to annoy our heroes.
* TrademarkFavoriteFood: Olaf loves potatoes.
* TrueCompanions: Really do care for each other.

!!Agent Orchid
[[quoteright:219:https://static.tvtropes.org/pmwiki/pub/images/agent_orchid.jpg]]
-> Played by: Michela Luci
One of the younger agents, she is sassy and particular.

* CharacterDevelopment: Season 3 had her go from being TheDreaded agent with an attitude problem to an agent who, while still viewed in a negative light by others, is more tolerant of others' actions.
* CuteAndPsycho: Orchid is to be feared.
* TheDreaded: Just hearing they have to deal with her can make Otis groan.
* LittleMissSnarker: Always has something vaguely rude/insulting to say.
* SitcomArchNemesis: She and Otis aren't fond of each other. Neither are her and Otto, as they share an implied bad history.

!!Agents Octavia and Oz
[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/kids_mezzannine_16x9_883jpgresize454x255.png]]
-> Played by: Julia Lalonde (Octavia) and Carson Reaume (Oz)

Octavia, another agent, will appear here and there in Season One. She is not the smartest tool in the shed, but always tries to be helpful. Her partner, Oz, is only seen in flashbacks, and for good reason.

* TheDitz: Agent Octavia. She doesn't always understand things.
* {{Invisibility}}: Agent Oz, thanks to looking at a gadget the wrong way.
* NiceGirl: Octavia is there to help, even if she doesn't know what's she's doing.

!!Agent Ohlm
[[quoteright:219:https://static.tvtropes.org/pmwiki/pub/images/agent_ohlm.jpg]]
-> Played by: Jaiden Cannatelli
Introduced in the first season finale. Quite dimwitted.
----
* BondVillainStupidity: [[spoiler:Ohlm was so focused on getting revenge on Odd Squad that he didn't stop to think about himself getting sucked into his own black hole. He could have used a getaway vehicle or something to escape his own doom.]]
* CrouchingMoronHiddenBadass: While looking and acting dumb, he is still a good agent and succeeds in getting the remote for the Puppy Ray back.
* EvilAllAlong: [[spoiler:Revealed to have been plotting to take down Odd Squad since he started working here, because he wasn't made the Big O immediately upon graduating the Academy.]]
* {{Foil}}: To Olympia. [[spoiler: Both of them were excellent students at the Odd Squad Academy. But while Olympia was happy to just be an agent, Ohlm wanted to become the Big O immediately. This resulted in him plotting to take over Odd Squad]].
* FourEyesZeroSoul: [[spoiler:When Ohlm reveals his true colors in the Season 2 finale, he puts on a pair of glasses.]]
* KnightOfCerebus: Hey you know all those AffablyEvil villains on the show who are rather good friends with the Squad? [[spoiler:Well you're not going to find any of those traits in this child.]]
* LastEpisodeNewCharacter: Season 1 ends with Ohlm being introduced as Otto's temporary new partner, and continues to appear throughout Season 2 as a recurring character.
* ObfuscatingStupidity: [[spoiler:He used his dumbness to hide his real plans to destroy Odd Squad.]]
* RepetitiveName: His full name is Ohlm Ohlm.
* UngratefulBastard: [[spoiler:You'd think that Ohlm would have been grateful that the agents were willing to save his life after they found out his true colors, but no, he continues threatening to destroy the company after they closed his black hole and doesn't even thank them. Yeah, he had that grounding coming.]]
* WalkingSpoiler: [[spoiler: He's been faking his ditziness to help villains to sabotage his precinct, so he could manipulate events to get Ms. O fired and destroy Odd Squad.]]
* YouAreGrounded: [[spoiler:Is grounded by his parents when defeated by Ms. O.]]

!!Agent Obfusco
[[quoteright:219:https://static.tvtropes.org/pmwiki/pub/images/agent_obfusco.jpg]]
-> Played by: Jaeden Noel
He's an expert on dealing with oddities and trains current agents. However, he talks in a weird way, which means it's hard for agents to understand him.

* TheDreaded: All you have to do is mention his ''name'', and the agents will scream in his presence.
* HypocriticalHumor: He complains nobody can understand his sister.
* MeaningfulName: ''Obfuscate,'' meaning to "render [something] unintelligible" or to "bewilder".
* StealthPun: Agent Obfusco has a plant named... [[Music/LedZeppelin Robert.]]
* TalkativeLoon: Agent Obfusco speaks almost exclusively in MeaninglessMeaningfulWords, InsaneTrollLogic, WordSaladPhilosophy, and SesquipedalianLoquaciousness. Without his mustache, he talks normally.

!!Dr. O
[[quoteright:219:https://static.tvtropes.org/pmwiki/pub/images/agent_dro.jpg]]
-> Played by: Peyton Kennedy
Obviously, the Doctor of Precinct 13579.
* AlwaysIntroducesThemselves: A standard conversation with her will often start with “Hello I’m Dr. O, we work together at Odd Squad” “Yes I know who you are”. She has done this even to people she was talking to shortly before or should know well (like when she reminds Oscar of the time they went on a mission together).
* BizarreTasteInFood: Her favourite food is apparently unicorn tears.
* CatchPhrase: "Trust me, I'm a doctor".
** Also "WHAT'S NEXT??".
* ChildProdigy: While all agents of Odd Squad can count as this to various extents, Dr. O is a notable example due to her claim of having gone through eight years of medical school to become a doctor. While how and where she did this is not shown, the fact that TheMovie shows her [[spoiler: working in what appears to be a real hospital after Odd Squad is shut down]] indicates her qualifications are not only real but are also recognized by adults.
* TheComicallySerious: She is less prone to acting silly, and gets down to business. Her abrupt deadpan and straight face contrast with everyone else's behavior, making her funny.
* ImADoctorNotAPlaceholder: Dr. O is always reminding everyone that she's a doctor.
* LabCoatOfScienceAndMedicine: Wears a labcoat over her Odd Squad medical uniform. Unlike the white labcoats of the scientists, hers is a light blue. Also, while all scientists are shown wearing their own labcoats, minor and background medical staff do not, suggesting the labcoat is specifically part of her position as the head Odd Squad doctor.
* TheMedic: Is the main Doctor of Precinct 13579 before being PutOnABus in Season 2 (see below).
* PutOnABus: Departs for the Odd Squad Space Station in "Doctor O, Party Time, Excellent."
* SuperDoc: The only one at Precinct 13579, and knows how to treat both oddities and normal illnesses.
** In a bit of a subversion, it's implied that she is NOT a good doctor, considering she always tells her patients "I tried my best.", according to her.
* TrustMeImAnX: She says stuff like this often.

!!Agent Oksana
[[quoteright:222:https://static.tvtropes.org/pmwiki/pub/images/kids_mezzannine_16x9_789jpgresize454x255.jpg]]
-> Played by: Madeleine Barbeau
The cook of the precinct. Is neither talkative nor emotional.

* AbsurdlyDedicatedWorker: In TheMovie, Odd Squad is shut down. However, Oscar and Ms. O discover that's she's still cooking and making food there.
* TheComicallySerious: Even more than Dr. O: her EmotionlessGirl tendencies mixed with her sarcasm make her hilarious to viewers, though scary to her teammates.
* CrazyPrepared: Always keeps pudding on hand in case of a invisible dinosaur invasion. It was even in her video guide.
* CreepyMonotone: Speaks in one.
* DeadpanSnarker: Many of her lines are sarcastic, and she's ''actually'' deadpan.
* EmotionlessGirl: You'll get no reaction from her.
* JerkWithAHeartOfGold: Makes unreasonable demands in "Agent Oksana's Kitchen Nightmares" (like multiple bars of gold), but it's eventually revealed that she needs the items to get the best food for the squad.
* TeamChef: Until the events of "Dr. O No", she is the sole cook of #13579. Whether she is a SupremeChef or CordonBleughChef is unknown, though evidence points to the former.

!!Ocean
[[quoteright:301:https://static.tvtropes.org/pmwiki/pub/images/unknown_1_91.jpeg]]
-> Played by: Elijah Sandiford
A new employee, he works with odd creatures. He's an expert at dealing with them and taking care of them.

* FluffyTamer: His expertise extends to frightening animals, and cares for them as well.
* FriendToAllLivingThings: He is very fond of creatures and will risk his life to give one the chance of survival.
* MellowFellow: So laid-back it's amazing he doesn't slide out of his hammock onto the floor.
* NatureLover: Comes with his love of animals.
* TheWatson: Ends up having to ask the questions, such as in "A Case of the Sillies" where he needs to know about measurement quantities.

!!O'Donahue
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_04_27_2_12.png]]
-> Played by: Tate Yap
Oprah's former partner who worked at Odd Squad until the 1980s, when he quit due to failure in solving a case. As of "Happy Halfiversary", he is unretired and works as an undercover Investigation agent for Oprah.

* TheCharmer: In "Totally Odd Squad", it's shown that he has no issue flirting with his boss. Unfortunately, any romantic feelings he has for her is [[AllLoveIsUnrequited completely one-sided on his end.]]
* [[invoked]] DisabledCharacterDisabledActor: Played with. Tate Yap wears a hearing aid in real life, but it's never revealed whether O'Donahue has any sort of hearing impairment.
* EnemyMime: Becomes one as part of TheInfiltration seen in "Behind Enemy Mimes".
* FirstNameBasis: He is one of the few who is allowed to call Oprah by just that: Oprah, instead of her job title, "Ms. O". This is due to the fact that they were partners, and so she has no issue with him referring to her as Oprah.
* HawaiianShirtedTourist: He often is shown wearing a blue Hawaiian shirt under his navy jacket instead of the white button-down undershirt most Investigation agents wear, and also donned a red one in "Behind Enemy Mimes". He also wears a Hawaiian shirt as a fisherman.
* HeroesGoneFishing: He became a fisherman after retiring from Odd Squad, and remained as one for thirty years until Oprah begged for his help solving a cold case and he had a HesBack moment.
* HorribleHousing: ''Film/OddSquadWorldTurnedOdd'' shows that O'Donahue's house is situated in a deep part of the woods, with only a table with three chairs and a bench as furniture. It's not made clear if this is his place of residence in the show, however.
* MandatoryUnretirement: He willingly came out of retirement in "The One That Got Away" when Oprah went to him for help in catching a villain who was stealing half of everything. By the end of the episode, it's implied that he went back into retirement right after solving one more case revolving around shoes being stolen from people, but "Happy Halfiversary" shows that he is back working for Odd Squad as an Investigation agent, having been attempting to make peace with the Queen of the Ice Trolls for five years, while "Behind Enemy Mimes" reveals that he is secretly working undercover for Oprah performing an [[TheInfiltration infiltration]] of a villain trio known as the [[EnemyMime Thrimes.]]
* NamedAfterSomebodyFamous: He's named after Creator/PhilDonahue, someone who directly influenced Creator/OprahWinfrey -- fitting, considering he's Oprah's former partner and almost always has her back.
* ThatOneCase: He quit Odd Squad due to failing to solve a case regarding a villain stealing half of various things, leaving his symbol behind as parting gifts. Thirty years later, in "The One That Got Away", he revisits the case with Oprah after she asks for his assistance, and the two manage catch Equal Evan, the villain in question.
* TimePassageBeard: Subverted. When Oprah comes across him in "The One That Got Away", he's shown with a full beard. However, it's revealed that the beard is fake when he rips it off while doing a SpyTuxReveal.
* TotallyRadical: Spoke in a combination of this and ValleyGirl often back in the 1980's. He takes it down a notch in modern times.
* TrueCompanions: With Oprah. Even long after he quits, the two remain close.
* UndyingLoyalty: ''Film/OddSquadWorldTurnedOdd'' reveals that even in a crapsack VillainWorld, O'Donahue will absolutely ''refuse'' to turn to the odd side because "I do no odd."
* VocalEvolution: His voice gets noticeably deeper beginning in Season 2.

!!New Dr. O / Olly
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_03_06_2_28_mp4.png]]
-> Played by: Sasha Steiner
Dr. O's initial replacement before being transferred to the Food and Beverage department and becoming Oksana's replacement.

* AccidentalMisnaming: She has a tendency to mispronounce Oona's name often.
* BestFriend: In "Dr. O No", Oona becomes New Dr. O's go-to person if she needs help with her Odd Squad Doctor duties, and she quickly becomes friends with her. However, the friendship is completely one-sided on New Dr. O's end, as she fails to realize just how much her antics are stressing Oona out.
* BigBrotherIsWatching: She's convinced that Precinct 13579's cafeteria workers are constantly watching people and are evil to boot.
* {{Cloudcuckoolander}}: By ''God,'' is this girl eccentric -- to the point where she even manages to unnerve ''Oona,'' who is a GeniusDitz herself. She's arguably one of the zaniest characters seen on the show, and that's saying something.
* ComicallyIneptHealing: In "Dr. O No", it's clear that she has no idea how to cure odd illnesses, and even with Oona helping her out she's still incompetent. Unsurprisingly, she is transferred to the Food and Beverage department at the end of the episode.
* InnocentlyInsensitive: Her debut episode, "Dr. O No", has her be completely oblivious to Oona's needs and feelings, which causes the Scientist to grow increasingly frustrated and stressed to the point where Ms. O, asking about a patient with tentacle feet, manages to make her hit her RageBreakingPoint.
* LabcoatOfScienceAndMedicine: She wears one of these while working in the Medical department.
* LeaderWannabe: In "Hands on a Desk Chair", she attempts to join in on the competition to see who gets to be Precinct 13579's Director for a day, only for Olympia, Ocean and Orchid to protest. She doesn't get far before Orchid effectively scares her into changing her mind.
* MeaningfulRename: Following the events of "Dr. O No", she is referred to as "Olly", which signifies her not being a part of the Medical department anymore (and no longer filling the role of being the former Dr. O's replacement). It's also an O name like what all other agents of Odd Squad have.
* OffscreenTeleportation: New Dr. O manages to not only swap out Oona's white undershirt for an "anti-caf" shirt within seconds, but she also manages to somehow slip a flatbread sandwich into her pocket, without touching her once.
* StealthHiBye: She has the ability to do this, which is best demonstrated in "Dr. O No" when she manages to pop up next to Oona, who is all the way in Yellowstone National Park.
* SupremeChef: Like Oksana before her, New Dr. O is a very skilled chef.
* WhoNamesTheirKidDude: "New Dr. O" is revealed to be the name that she was born with, and because of it, Ms. O promotes her to be Dr. O's replacement. However, it's soon revealed that "New Dr. O" isn't as skilled at being in the Medical field as previously thought, and as a result, Ms. O moves her to the Food and Beverage department. She is renamed "Olly" in "Haunt Squad" and is referred to as such from that episode onwards.
* YouAreWhatYouHate: She shows complete disdain for Odd Squad cafeteria workers for no apparent reason, and tries to get Oona to hate them as well. By the end of "Dr. O No", she's transferred to the Food and Beverage department and becomes a cafeteria worker herself.

!! Xavier and Xena
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2021_03_08_2_22_0.png]]
-> Played by: Leonidas Castrounis (Xavier) and Sheena Darnley (Xena)
A partner pair from the Task Force department who are sent by the Big O to monitor Precinct 13579 in Season 2.

* AffectionHatingKid: They hate hugging and kissing. Xavier in particular also hates handshakes.
* BullyingTheDisabled: Xavier is more than willing to take Olympia's glasses with him when he and Xena begin marking things from Precinct 13579 that they wish to take with them when it gets shut down. Since Anna Cathcart does wear glasses in real life, if Xavier took Olympia's glasses, she'd potentially be BlindWithoutEm.
* DisabilityAsAnExcuseForJerkassery: Xena is disabled and uses a wheelchair to get around. While she doesn't use her disability to excuse her actions, her being in a wheelchair, Odd Squad's modus operandi of equality (as well as the overall show's theme of diversity), and her high status in the organization's hierarchy are potential reasons why agents don't confront her for what she's done.
* TheDividual: They are never seen apart and always work together as a partner pair.
* EveryoneHasStandards: They may be more than willing to mistreat other agents and take their workplace away from them, but when it comes to firing Orson in "Saving Agent Orson", seeing that he has superpowers like [[{{Sizeshifter}} sizeshifting]] and [[{{Flight}} flight]] is enough to scare them into admitting defeat and letting him stay.
* EvilCounterpart: Both agents serve as these to Owen and the rest of the Security department. Not only is the Task Force department logo an evil version of Security's (with the keyhole flipped upside down and being colored black), but while Xavier and Xena are selfish and greedy and have little regard for others' well-being, Owen and the other Security agents are laid-back and are generally affable. In addition, Owen in particular can be unhelpful, but doesn't have any malicious intent behind his actions.
* GenderFlip: Xena was originally referred to as male in casting call scripts, while Xavier was of an AmbiguousGender. In the series proper, Xena is female and Xavier is male.
* GoldColoredSuperiority: They both wear gold as part of their outfits, and have a lot of gold-colored objects in their office.
* HateSink: Both of them effectively serve as these, what with their mistreatment of Precinct 13579's agents, their selfishness, and their actions being more villainous than heroic -- not to mention they are both [[KarmaHoudini Karma Houdinis]] by the season's end.
* HypercompetentSidekick: Both of them work directly under the Big O, who is a CluelessBoss. Despite the fact that he doesn't seem to know them, however (shown in "Who is Agent Otis?" when he refers to them as "you other guys"), they are more than happy to carry out his orders. As of Season 3, it's unclear if they fulfill this role to [[spoiler:Oprah, who becomes the new Big O.]]
* KarmaHoudini: Neither one of them get any sort of comeuppance for their misdeeds, and their final appearance in Season 2 is them departing from Precinct 13579 following [[spoiler:the Big O firing Oprah and Otis from Odd Squad.]]
* LackOfEmpathy: Even when agents' physical and mental health are suffering, they show absolutely no empathy...that is, for anyone but themselves.
* LetterMotif: Xavier and Xena, like others in the Task Force department, are referred to as "the X's". They also wear X-shaped buttons on their jackets, and Xena wears bobby pins in her hair that form an X shape.
* MeaningfulRename: Xavier and Xena were initially named "Oke" [[note]]A South African term used to address a boy[[/note]] and [[PunnyName "Opaganda"]] in casting call scripts, respectively, before being renamed. While casting calls for "Oke" were looking for an actor who was African-Canadian to play the character, "Opaganda" was originally meant to be the personification of propaganda -- something that would have been a bit too mature of a subject matter for Creator/PBSKids to allow.
* MirthlessLaughter: They often laugh in a stiff, awkward, unisonant manner. Doubles as an EvilLaugh.
* RulesLawyer: Their job, and by extension their department's job, is to make sure that Odd Squad precincts are following rules. If they find that a precinct is not following rules, they have the power to shut them down permanently.
* ScrewTheRulesIMakeThem: In "Xs and Os", they have no problem with accusing Precinct 13579 of being over budget while also buying expensive things for themselves. Them doing so turns out to be the cause of the precinct's financial woes.
* SevenDeadlySins: Both Xavier and Xena have Greed, Pride and Wrath as their character-defining traits.

!! 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.

!!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]]
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* CuteButCacophonic: Make no mistake -- when Olympia screams or shouts, it's ''loud.''

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* CuteButCacophonic: Make no mistake -- when Olympia When she screams or shouts, it's ''loud.''whether scared or excited, it is ''incredibly'' loud.
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* CuteButCacophonic: Make no mistake, Olive has her adorable moments. But when she screams, hoo boy, is it ''loud''.

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TRS wick cleanupNot Good With People has been renamed to Better With Non Human Company and disambiguated


* BetterWithNonHumanCompany: Implied and inverted. Opal is fine with other human beings (unless they're villains) and gets along with them well, but the "How to Keep Your Squad Happy" Training Video implies that she isn't too fond of animals, as she previously told Omar that he can get any pet he wants provided that she can't see it.



* NotGoodWithPeople: Implied and inverted. Opal is fine with other human beings (unless they're villains) and gets along with them well, but the "How to Keep Your Squad Happy" Training Video implies that she isn't too fond of animals, as she previously told Omar that he can get any pet he wants provided that she can't see it.
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Ambiguous Disorder now goes in YMMV page under Diagnosed By The Audience


* AmbiguousDisorder: Olive shows quite a few symptoms of PTSD and trauma, which stems from her experiences in dealing with her old partner and fighting off the pienado that he released in her own workplace. When she is forced to interact with pie in any capacity, she screams in terror and often cowers behind Otto, and it's implied in a few episodes that she also has sensitive hearing. The [[CharacterBlog [=OddTube=]]] episode "Interview with Olive" also has her explaining how she's getting over her fear of pie by focusing on tarts, a smaller pastry. Whether she was intentionally written to have PTSD or trauma symptoms is unknown.
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* CuteButCacophonic: Like Opal, he's one of the loudest agents on the show and has a tendency to scream a lot.
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* SuperCoach: He's very supportive of his teams. In the case of his basketball team, he manages to help them score a win when Olive takes the place of a few of his injured team members.

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* SuperCoach: He's very supportive of his teams. In the case of his basketball team, he manages to help them score a win when Olive takes the place of a few of his injured team members.
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* SuperheroTrophyShelf: Omar is defined by his love of collecting souvenirs, which he keeps on the other side of the hidden wall located in the Mobile Unit van (and which he refers to as "Omar's House of Awesomeness"). He always tries to get at least one from every location he and the rest of the Mobile Unit visits. Not being able to get one, for whatever reason, immediately sours his optimism, and if the reactions of Opal and Oswald when inquiring about taking him to Crimson Carl's house with them in "Odd Squad in the Shadows" are any indication, it's a BerserkButton for him.

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* SuperheroTrophyShelf: Omar is defined by his love of collecting souvenirs, which he keeps on the other side of the hidden wall located in the Mobile Unit van (and which he refers to as "Omar's House of Awesomeness"). He always tries to get at least one from every location he and the rest of the Mobile Unit visits. Not being able to get one, for whatever reason, immediately sours his optimism, and if the reactions of Opal and Oswald when inquiring about taking him to Crimson Carl's house with them in "Odd Squad in the Shadows" are any indication, it's a BerserkButton sore spot for him.

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* BizarreTasteInFood: It's not enough for Baby Genius to drink the milk of cows or humans -- he has to go one step further and drink the milk of giraffes.



* ComicallySmallBribe: Pretty much a large majority of what the agents bring to Baby Genius amounts to these. Olive even resorts to pocket lint in "My Better Half", which works, but when she tries the same tactic again in "The Odd Antidote", Rivka tells her that pocket lint was "so last month".
* CreepyChild: Baby Genius is, by Rivka's own words in "Jinx", a villainous baby who takes immense joy in seeing agents intentionally hurt themselves and mostly hangs around in a dark and dingy warehouse with Rivka herself.
* CreepyGood: Both Rivka and Baby Genius (or in the latter's case, the stroller he sits in) are decked entirely in black, and roam about in an AbandonedWarehouse with the lights off at all times. This is mostly why agents believe they are TheDreaded and want nothing to do with them unless it's a last resort. The trope ends up being invoked in "Ocean and the Fly", where Rivka states that she kept the lights off in the warehouse because she thought agents liked it when she and Baby Genius were dark and mysterious.



* StealthHiBye: Many characters in the show have this ability, but both Rivka and Baby Genius are the only ones to employ it as part of the spooky ambience they give off, rather than due to the RuleOfFunny. They will, however, sometimes announce their presences by making noise beforehand, such as causing cans to spill and clatter or by Baby Genius giggling.

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* IconicItem: For Baby Genius, a yellow-and-red baby rattle with a white handle is his distinctive item. Although he's not actually seen with it, agents wave it around to indicate when someone has to go visit him, followed by said someone freaking out.
* InsistentAppellation: Rivka is often referred to as "Your Excellency", even though she holds no position of power, whether above them in Odd Squad or otherwise.
* StealthHiBye: Many characters in the show have this ability, but both Rivka and Baby Genius are the only ones to employ it as part of the spooky ambience they give off, rather than due to the RuleOfFunny. They will, however, sometimes announce their presences by making noise beforehand, such as causing cans to spill and clatter or by way of Baby Genius giggling.giggling and cooing.
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I'm honestly not sure if Rivka and Baby Genius have an entry on here, but I threw one in anyway. Will expand tomorrow.

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!! Rivka and Baby Genius
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2023_02_07_at_03_25_39_two_agents_and_a_baby_ocean_and_the_flymp4.png]]
--> Rivka played by: Meghan Allen

A nanny-and-child duo who often assists Odd Squad in exchange for various favors. Baby Genius is the spearhead of the duo, and agents often go to him for objects or hints they need to acquire to solve cases, with Rivka translating his baby talk for him as needed.

* AbandonedWarehouse: They linger around and operate in the hallway of one. Mysteriously, it looks similar to the hallway shown in Precinct 13579 in a few episodes, like "Robert Plant" and "6:00 to 6:05", though this could just be due to it being a RecycledSet.
* AmbiguouslyEvil: By Rivka's own admission in "Jinx", Baby Genius is a villain, which is exemplified by him enjoying things like seeing Olive and Otto intentionally hurt themselves repeatedly. However, he can, he will, and he does give agents what they need so long as they appease to his whims and desires, and is even well-behaved around Olympia and Otis when they end up becoming his temporary babysitter, giving them the answer they need to stop Marty Marmalade without the need for a bribe. It's hard to classify him as either an ally of Odd Squad's or as a villain in their RoguesGallery. The same trope also applies to Rivka, who generally goes along with what Baby Genius says because she's his translator.
* BrainyBaby: He may speak mainly in baby talk, but Baby Genius is exceptionally smart in the subject of mathematics all the same. He is one of the only villains in the entire franchise who actually has a good grasp on mathematics, as opposed to other villains who have very little knowledge on it.
* DeadpanSnarker: Rivka can snark at certain times.
--> '''Olive:''' How about a comb?
--> '''Rivka:''' Great, a comb! So Baby can comb all the hair he doesn't have.
* TheDreaded: In the beginning of Season 1, Rivka and Baby Genius were people to be feared -- and feared they were, even to those like [[ShellShockedVeteran Olive]]. It isn't until Season 2 that this trope becomes averted, as agents become more comfortable with seeing them and show no signs of fear at all.
** The pilot takes this a step further by having the characters' {{Establishing Character Moment}}s be Rivka wheeling Baby Genius's stroller directly over the neck of a stuffed toy, followed by a terrified Olive and Otto slowly creeping towards them and inquiring about a number hog to the sole tune of a [[HeartbeatSoundtrack heartbeat.]]
* HiddenDepths:
** Some of the bribes that Baby Genius accepts can be rather unusual, such as Otto's birthday party invitation in the pilot or Olive's pocket lint in "My Better Half".
** In "Two Agents and a Baby", Rivka goes for a pilot license and obtains it in the span of one afternoon. Said license allows her to operate Baby Genius's stroller, which has rocket thrusters built in that enable it to fly.
* StealthHiBye: Many characters in the show have this ability, but both Rivka and Baby Genius are the only ones to employ it as part of the spooky ambience they give off, rather than due to the RuleOfFunny. They will, however, sometimes announce their presences by making noise beforehand, such as causing cans to spill and clatter or by Baby Genius giggling.
* UnexplainedAccent: Rivka has a distinct Russian accent, but operates exclusively in Toronto.
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Swapping images for Olive, Otto, Otis and Olympia with transparent ones since two are screenshots from the show, one lacks transparency, and the other is a better transparent one..


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* EverythingsBetterWithDinosaurs: She loves them.
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* BoundAndGagged: Her WeaponOfChoice is her Rope-inator, a gadget from ancient times which is made out of stone instead of metal and can instantly trap enemies by tying them up with rope.

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* BoundAndGagged: Her WeaponOfChoice weapon is her Rope-inator, a gadget from ancient times which is made out of stone instead of metal and can instantly trap enemies by tying them up with rope.
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* AthleticallyChallenged: In stark contrast to his partner Olive, Otto's skillset does not lie in sports. This is something he willingly points out to Oren in "Switch Your Partner Round and Round" when the agent is looking to insult him, and something that comes up as a plot point in "The O Games" during the eponymous event. About the only athletic thing Otto does well is dribbling a basketball.
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* EverythingsBetterWithPuppies: She's called "The Puppy Master" for a very good reason.

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* EverythingsBetterWithPuppies: EverythingsPreciousWithPuppies: She's called "The Puppy Master" for a very good reason.

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One of the [[GreaterScopeVillain Greater Scope Villains]] of Season 2 and Otis' adoptive family.

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One of the [[GreaterScopeVillain Greater Scope Villains]] of Season 2 and Otis' Otis's adoptive family.


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* FeatheredFiend: Their entire goal is to take over as many ponds in the world as they can...even if it means moving the Sun closer to Earth in order to achieve it.


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* SupervillainLair: They have one in the form of a large, spacious barn, which also served as Otis's home.


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!!The Puppy Master
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2022_09_27_at_04_37_33_villains_and_a_puppymp4.png]]
-> Played by: Starr Domingue

A villainess who specializes in puppies -- more specifically, the act of turning people ''into'' puppies.

* AttackOfThe50FootWhatever: In "The Cherry-on-Top-inator", her plan is to make a puppy grow big enough so that it treats the planet Earth like a slipper and chew it up.
* ColorCodedForYourConvenience: When she uses TubeTravel to exit Precinct 13579 in "And Then They Were Puppies", she travels in a clear transparent ball instead of a colored transparent one.
* DoomsdayDevice: Although she has a smaller and more portable one that she uses in later episodes, her ultimate plan in her debut episode is to use a gigantic puppy ray she had built to turn everyone in the entire world into puppies.
* EvenBadMenLoveTheirMamas: In "Total Zeroes", the first thing she does when she finds out she's ranked #12 on the 2013 Most Odd List is call up her mother to share the good news. Once she congratulates her, she asks her to put her father on the line so he can receive the good news as well.
* EverythingsBetterWithPuppies: She's called "The Puppy Master" for a very good reason.
* EvilIsHammy: Make no mistake, she can [[ChewingTheScenery chew the scenery]] when she wants to.
* GadgeteerGenius: Known enough about gadgetry to build both a handheld puppy ray that turns people into puppies, and a gigantic version of the ray that has enough power to zap the entire world and turn the people within it into puppies.
* TheLeader: Serves as the leader of the villain raid to steal the Golden Sundial in "Odd Together Now".
* LovelyAssistant: Briefly becomes the magician's assistant to Osmerelda in "Ahead of the Times".
* NearVillainVictory: Obtains this in "And Then They Were Puppies" when she manages to turn Otis and Olympia into puppies. The only reason she didn't get a chance to zap the rest of the people in the world with her gigantic puppy ray is because she forgot to factor in resident ConfusionFu master Ohlm.
* OneSteveLimit: Downplayed. Her name is very similar to that of The Puppet Master from the Season 1 episode "Puppet Show" (to the extent that Otis has to ask Oprah if she meant The Puppet Master was in HQ in "And Then They Were Puppies"), but they are in no way related.
* SassyBlackWoman: She can get this way sometimes.
--> '''The Puppy Master''': And bring him a tuna melt! He eats whatever I ''tell'' him to eat!
* SupervillainLair: Her lair looks like an old observatory, but with a large dog bone placed on top.
* VillainCred: The SeriesFinale, "Odd Together Now", reveals that the reason she wants to steal the [[ArtifactOfPower Golden Sundial]] is so she can get respect from other villains.

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* BadassCape: He dons a yellow one that is made by the Stitcher in "Who is Agent Otis?"



* CourtJester: Has the appearance of one.

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* CostumeEvolution: In "Who is Agent Otis?", his outfit has gone from being predominantly brown to yellow. He also wears a cape.
* CourtJester: Has the appearance of one. He can even juggle twenty balls at once.


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* KeepingSecretsSucks: He is unable to keep a secret. As a result, Jamie Jam and Mr. Lightning prefer to [[LockedOutOfTheLoop keep him out of the loop]] when it comes to secretive and confidential matters.
* LastNameBasis: He is always referred to by his last name, "Noisemaker". It's not until "Who is Agent Otis?" that we learn his full name is ''Kevin'' Noisemaker.


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* VillainousFriendship: Seems to be good friends with Mr. Lightning and Jamie Jam, according to "Villains in Need Are Villains Indeed".

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* BefriendingTheEnemy: Played with. He treats Otis as a best friend rather than an enemy, but the friendship is entirely one-sided on his end.



* HeelFaceTurn: Subverted. He nearly turns to the side of good in "Otis's Day" by going into the Villain Protection Program, but backs out because he doesn't want to lose Otis as a friend and wants to stay on the side of villainy.
* ISurrenderSuckers: In "Flawed Squad", he initially admits defeat when Olympia and Otis order him and the other villains to exit the Arts and Crafts Room, but then shoves a slew of instruments into the agents' hands before taking off.



* WithCatlikeTread: When your entire body is covered with instruments that move when you do, "stealth" is a foreign concept.

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* SweetBaker: Inverted and downplayed. His first appearance in "Odd Outbreak" involves him crafting chocolates that, when eaten, cause the consumers to make loud and odd noises every time they open their mouth.
* UnexplainedAccent: The show (mostly) takes place in Canada, but the Noisemaker speaks with a German accent.
* WithCatlikeTread: When your entire body is covered with instruments that move when you do, "stealth" is a bit of a foreign concept.concept. "Flawed Squad" has Jamie Jam realizing this, and exploiting it by using him as a distraction.
* WitnessProtection: He nearly goes into Odd Squad's Villain Protection Program for the second time around in "Otis's Day", but losing Otis as a friend scares him out of it.
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!!Kevin Noisemaker
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2022_09_27_at_04_36_42_villains_and_a_puppymp4.png]]
-> Played by: David Tompa, James Hartnett (Noisemaker II), Will Bowes (Noisemaker III)

A villain whose ultimate goal is to fill the entire world with a variety of odd noises.

* AncestralName: If the credits of "Oscar of All Trades" and "Undercover Olive" are to be believed, he is the ancestor of Noisemaker II and Noisemaker III. [[note]]This could also be a way to differentiate between each actor playing the character, but this is never explained.[[/note]]
* CourtJester: Has the appearance of one.
* MusicalAssassin: He wields a Clarinet of Chaos and a Fiddle of Fear, among many other instruments.
* OneManBand: His entire outfit is filled with instruments.
* WithCatlikeTread: When your entire body is covered with instruments that move when you do, "stealth" is a foreign concept.
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!!Mr. Lightning
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/screenshot_2022_09_27_at_04_46_49_olympias_day_otiss_daymp4.png]]
-> Played by: Joseph Motiki

A recurring villain with electric powers.

* ElectricBlackGuy: Pretty much fits the bill in every aspect aside from the "superhero" portion. His lightning attacks are strong enough to cut through solid dirt and brick with ease.
* EvilLaugh: Doesn't do this often, but "New Jacket Required" has him pulling off a pretty solid one after Olympia [[NiceJobBreakingItHero shows him the manual of Otis's new jacket and he destroys it]].
* GadgeteerGenius: With the help of Jamie Jam and the Noisemaker, he's able to build a HumongousMecha in "Villains in Need Are Villains Indeed".
** "New Jacket Required" has him building a {{MacGuffin}} machine that "can do many different evil things", according to Oprah. What it does, exactly, isn't elaborated on any further than that, but it apparently requires three stuffed folders and two hours just to explain.
* HandRubbing: Does this every time before he attacks.
* HellBentForLeather: He dons a black leather jacket with lightning-bolt emblems on his arms.
* {{Kiai}}: Often punctuates his attacks with "Pa-kow!"
* ShockAndAwe: His main powers consist of shooting lightning out of his hands, but he can also generate thunder. He's powerful enough to restore a bus's entire battery meter.
* VillainsOutShopping: In many of his appearances, he is often seen running errands such as going to the mall or getting his hair done at the barbershop.
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Categorization.


!!Heroes




!!Villains



* WouldHurtAChild: His discovery of his power to flatten people as well as objects comes after Olive is flattened by him during a Diving Save.

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* WouldHurtAChild: His discovery of his power to flatten people as well as objects comes after Olive is flattened by him during a Diving Save.DivingSave.


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!!Others
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Nice Shoes has been disambiguated per TRS: [1]


* NiceShoes: He wears a red pair of knee-high boots, in contrast to Orla's red flat shoes that are coupled with lace.

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