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Although they were just a OneSceneWonder in the first movie, the penguins have proven to be {{Ensemble Darkhorse}}s to the point that their part in the movies escalated and then they received their own show, ''ThePenguinsOfMadagascar'' and a solo movie that (debatably) tied the Madagascar canon to the series canon.

Note that this character sheet applies only to the TV series canon. For tropes related to the characters in the movie franchises (including ''WesternAnimation/PenguinsOfMadagascar''), go [[Characters/{{Madagascar}} here]].

[[folder: General]]
The titular BadassCrew of penguins.
* AmbiguouslyBi: All four had a female love interest at some point in the show, but there are also some... [[HoYay scenes]]... that suggest they probably aren't completely straight.
* AntiHero: Except for Private, all of them are mostly Type II or III. Kowalski also shows traits of Type I from time to time.
* BadassAdorable: They are small, cute penguins and complete badasses.
* BadassCrew: Of course.
* BewareTheSillyOnes: All four can be incredibly silly in the funniest and weirdest ways. However, all of them can be quite dangerous when provoked.
* BunnyEarsLawyer: As goofy and silly as they are, they do always end up getting their job done.
* CloudCuckoolander: Every single one of them.
* EverythingIsBetterWithPenguins: Likely the main reason why this show was made.
* FourManBand:
** OnlySaneMan: Skipper. He isn't really SANE, but he is the closest thing the group has.
** TheSmartGuy: Kowalski, of the MadScientist type.
** The Pervert: Rico, of the HeroicComedicSociopath type
** ButtMonkey: When it comes to being a diversion, or bait, Private tends to get the short end of the stick.
* FourPhilosophyEnsemble:
** Skipper: TheCynic. Being constantly paranoid, Skipper always sees the worst in others, as well as the worst possible scenario.
** Kowalski: The realistic. While more on the cynical side of the spectrum, Kowalski's goal is always to see the most realistic and rational side of things.
** Private: The optimistic. Kind to everyone and always sees the good side of others when his teammates don't.
** Rico: The apathetic. The oddball of the group, Rico doesn't really express himself that much and is more prone to just following Skipper's orders.
* FourTemperamentEnsemble:
** Skipper: Choleric/Melancholic. Always [[TheLeader takes the lead]], is strong willed, passionate, determined, hard working and confident, but also tends to be a bit of DrillSergeantNasty, stubborn, harsh, bossy, cynical, strict and prone to seeing the worst in other animals.
** Kowalski: Melancholic/Phlegmatic. Analytical, loyal, witty, more of a follower despite his higher position but also tends to see the worst in people and seems to be kind of insecure.
** Private: Phlegmatic/Sanguine. Cheerful, open minded, optimistic, forgiving, polite, compassionate, but tends to be gullible, overly idealistic and timid.
** Rico: Sanguine/Choleric. Energetic, passionate, unpredictable, quirky and eccentric TheBigGuy of the team, but also emotionally unstable, hyperactive, impulsive and kind of psychotic.
* GoodIsNotNice: They are openly heroic and have good intentions... even if they are usually [[HeroicComedicSociopath needlessly ruthless and have little concern for collateral damage]]. Only exception is Private, who fits the BewareOfTheNiceOnes trope more.
* InterspeciesRomance: Well, it IS a Madagascar tradition when you think about it...
** Skipper had a fling with a falcon named Kitka and has some ShipTease moments with Marlene, who is an otter.
** Kowalski is in love with a dolphin named Doris.
** Private once had a crush on a human nurse.
** Rico's... "girlfriend"... is a human doll named Miss Perky.
* JerkWithAHeartOfGold: Except for Private, who is a straight up NiceGuy, these guys probably aren't the nicest animals in the Zoo and are prone to making selfish mistakes, but they are dedicated to helping animals in need and stopping evil animals and they care about each other deeply.
** Skipper is a sarcastic, tough, cynical and paranoid leader who constantly sees the worst in other animals and he tends to be mean to his co-workers as well. That said, he cares for all of them - while he often dismisses Private as "naive", even when he is being the OnlySaneMan, he practically sees him as his son, he completely accepts Rico's quirks and while he isn't a huge fan of Kowalski's nerdiness and inventions that tend to end with disaster, he still respects him and is willing to help him out with everything.
** Kowalski is an InsufferableGenius whose obsession with science tends to end in a disaster. He also has a trouble with expressing empathy, through that can be chalked up to him being socially awkward. That said, he might actually be the second nicest member after Private, as he seems to be quite polite to most animals in the Zoo, unless they do something he sees as stupid.
** Rico may be the AxCrazy loose cannon of the penguins, but he is quite the softie once you get to know him. Also, don't hurt his teammates. Just don't.
* ManChild: Mostly Private and Rico, who act more like teenagers at most than actual adults, but Kowalski is prone to throwing temper tantrums for stupidest things, and some of Skipper's thories can be... [[CloudcuckooLander questionable.]]
* NobleMaleRoguishMale: Skipper and Rico are more on the roguishish side while Kowalski and Private are on the noble side. That said, Skipper is more noble than Rico while Kowalski is a teensy-bit more roguish than Private.
* PintSizedPowerhouse: They are pretty small, [[AnimalsNotToScale even for their species.]]
* RagtagBunchOfMisfits: Thanks to the {{Flanderization}}, Skipper is now an extremely paranoid leader who has [[FantasticRacism prejusticed throughts about mammmals]], Kowalski is a nerdy InsufferableGenius, Rico is their psychotic DumbMuscle who lives to blow things up and while Private may be the most normal of them, he is still prone to making silly and naive mistakes and is a CloudCuckooLander.
* RudeHeroNiceSidekick: Skipper and Private in a nutshell.
* SensitiveGuyAndManlyMan: Skipper ( a tough leader who slaps his teammates if they do something wrong ) and Rico ( TheBigGuy who loves explosions ) are manly to Kowalski's ( an {{Adorkable}} scientist who is open about his feelings for Doris ) and Private's ( a naive NiceGuy who looks on the bright side of things ) sensitive.
* TheTeam:
** Skipper is TheLeader, [[CaptainObvious obviously.]]
** Kowalski is TheLancer, as he acts like a leader whenever Skipper is not around and the two are polar opposites in personality ( Skipper prefers to act while Kowalski prefers to think ) and appearance ( Skipper is short and stocky, while Kowalski is tall and slim ). He is also TheSmartGuy, being the resident scientist and strategist.
** Rico is TheBigGuy, as he is generally the most violent of the group. He is also shown to be second most physically capable member after Skipper.
** Private is TheChick and TheHeart, as he is the most kind hearted, open minded and emphatic member of the group. Skipper even calls him the heart of the group in one episode.
* TrueCompanions: They stick together no matter what.
* UndyingLoyalty: While they have their arguments from time to time, these guys are constantly loyal to each other.
* VitriolicBestBuds: The four are very close to each other, but they tend to have arguments extremely often.

[[folder: Skipper]]

The leader of a BadassCrew of Commando Penguins, voiced by Creator/DreamWorks animator/TV series co-creator Tom [=McGrath=]. He speaks in a crisp, hard-edged tone like a cool spy from a ''film noir'' movie. In the TV series, Skipper is somewhat abrasive with the other three penguins, often chastizing them and {{Dope Slap}}ping them to keep them in line.
* AFatherToHisMen: Genuinely seems to look out for and care about his men, and has even pulled off a one manned BigDamnHeroes more than once.
* AfraidOfNeedles: In "Needle Point," he goes well out of his way to avoid getting a shot.
* BadassAdorable: In "Rock-A-Bye Birdie".
* BadassInCharge: The tough leader of a BadassCrew of penguins.
* BerserkButton:
** He doesn't go berserk, per se, but Skipper really doesn't like it when you call him fat, or any of its synonyms. He likes to claim it's muscle.
** He '''''really''''' doesn't like Hoboken, UsefulNotes/NewJersey.
** Or UsefulNotes/{{Denmark}}.
** He hates the lemurs going on solo missions.
* BruiserWithASoftCenter: He might try to hide it behind a tough leader facade, but he loves his teammates to no end.
* TheCaptain: He is the heroic commander of the penguins. His name, "Skipper", is a synonym for "sea captain".
* TheComicallySerious: He takes even his weirdest delusions extremely seriously.
* DeadpanSnarker: Skipper has a snarky sense of humor.
* {{Determinator}}: Skipper doesn't know the meaning of the word "surrender". When he puts his mind to something, nothing can stop him.
* DopeSlap: Used often on his comrades. Sometimes all three in one swing. He also likes to order one of his men to do this when he is too far away or can't be bothered to do it himself.
* DrillSergeantNasty: Has shades of this in "A Kipper for Skipper". He subjects his comrades to all sorts of difficult and impossible tasks.
* FantasticRacism: He occasionally makes less-than-complimentary remarks towards mammals. He especially dislikes humans.
** Despite this he genuinely respects Marlene, and has openly said that she's smart, despite claiming that mammals have low intelligence.
* {{Flanderization}}: While the most unchanged of the penguins, his opinion of the main characters in the movies (referring to them as hippies) has been expanded to a low opinion of all mammals in general.
* FourTemperamentEnsemble: The Choleric.
* FreezeFrameBonus: In "Skipper Makes Perfect" when Skipper steals his file back from the Danes you can freeze on the file and learn some of what happened (most of which has been brought up at some point or other by Skipper already).
* TheHero: Occasionally, he and the others ''do'' come off as [[JerkAss jerks]], but they almost always save the day in the end.
* ItsAllMyFault: Done twice. The first time was when he poked a hole in Julien's bouncy house causing him to lose his crown (though he blamed part of it on Marlene for provoking him); the other, when one of the chimps causes him and the penguins to spin out and lose a race to the lemurs. In the latter episode, also he accepts full responsibility despite the fact he did nothing to cause it. He even said they would have his resignation in the morning because of his shame and guilt.
* LargeHam: Lots of dramatic closeups and exaggerated gestures accompany his powerful paranoia and give the impression that Skipper has trained at the Creator/WilliamShatner school of acting. His tendency to clutch a flipper to his chest when upset gives one the permanent suspicion that he's suffering from some sort of heart condition.
* TheLeader: He leads and commands the penguin team.
* LikeASonToMe: While he refers to Private as a brother, his attitude is much more like that of a strict but loving father (who's training his son to be a commando/ninja/special-agent).
* LovesMyAlterEgo: He fell for Arlene (Marlene in disguise due to chlorine accident) and became kinda StalkerWithACrush.
* MeaningfulName: Skipper is also the title of the captain of a ship or team.
* NeverMyFault: The one time it was his fault, he pinned the blame on Private.
* TheNicknamer: He almost always refers to Julien as "Ringtail," Mort as "Sad Eyes" and Max as "moon cat."
* OddFriendship:
** With Marlene. They are certainly friends and honestly respect and trust one another. Even though Marlene's friendly and level-headed nature clashes with Skipper's raving paranoia.
** With King Julien. The two were described as ''best friends'' by Dr. Blowhole and Skipper's fellow penguins end up more or less ''agreeing''.
* OfficerAndAGentleman: Mostly Officer.
* PersonaNonGrata: As stated above, he can't set foot in Denmark due to Hans the Puffin making him Public Enemy Number One.
* ProperlyParanoid: Played with. His suspicions are so wild and irrational that no normal person would have them, ranging from robot clones to space-squids. He's always suspicious of new arrivals and has occasionally accused his friends of being brainwashed or enemies in disguise when they disagree with him. And yet he's often right. Then again, sometimes he isn't.
* SmartPeoplePlayChess: He's shown playing chess with Marlene in "Crown Fools".
* TheUnSmile: Skipper has at least once mentioned that it hurts to smile.

[[folder: Kowalski]]

The team genius and gadgeteer, voiced by Creator/JeffBennett. Kowalski builds all of the crazy technology that the other penguins use, and a lot of the tech that causes a lot of trouble for them too. He helps to come up with plans - usually ones that are overly complicated - and is occasionally referred to as 'Lieutenant'.

Kowalski is certainly [[OverlyNarrowSuperlative the smartest penguin alive,]] but his sciencing has a bad habit of putting the entire world in danger, a source of never-ending frustration to Skipper. The solution? ''MORE'' science.

* {{Adorkable}}: Especially when he's excited about science.
* AmbiguouslyJewish: Kowalski is a ''very'' common surname among Jewish immigrants, especially those originating from Poland. Kowalski himself manages to hit a few Jewish stereotypes, including his knack for over-analysis and lyrical exaltation setting him close to his compatriots from Eastern Europe. Oh, and the shape of his head looks a little bit like a Kippah.
* ArbitrarySkepticism: Refuses to believe in anything supernatural despite having witnessed things that science just can't cover, though to be fair, encounters with things of genuine supernatural origin are rare for the Penguins and such things are either mundane in origin or are ambiguous enough in nature that Kowalski can refute them because evidence to the contrary can't be found. However he is surprisingly knowledgeable of anything concerning cursed and possessed objects.
-->'''Kowalski''': I took an online course!
* BadassBaritone: Kowalski has a deep voice most of the time and is the Penguins' resident BadassBookworm.
* BadassBookworm: While not a bookworm (he [[NeverLearnedToRead can't read]], actually), he fits this thanks to the fact that he is highly intelligent, as well as TheSmartGuy of the penguin commando and is just as good at fighting as the rest of them.
* BambooTechnology: Kowalski reguarly builds amazing things out of elastic bands, coffee cups, lollipop sticks and duct tape.
* BerserkButton: Skipper learned the hard way what that was in "Goodnight and Good Chuck" -- destroying his computer will get you attacked, even if you are his boss.
* BiTheWay: He dated a female dolphin once, but in "Pet Peeved" he shouts out "I love you" to Skipper when he is taken away.
* BunglingInventor: His inventions do have an AWFUL tendency to backfire, with Skipper showing skepticism of them working.
* ButtMonkey: Often receives the brunt of AmusingInjuries, SanitySlippage and just being a BunglingInventor.
* CannotTellAJoke:
-->'''Private''': There's two of you! That's a great trick!\\
'''Kowalski''': Private, can you recall a time when I have ever played a trick or even told a joke?
** He ''has'' attempted to tell jokes since that episode... but they tend to fall flat.
* CaptainObvious: "Kowalski, report/analysis!" Followed by Kowalski making a blatantly obvious statement.
* CatchPhrase: ''Egads!''
* TheChewToy: His massive ego always makes sure he has it coming to him every time.
* TheComicallySerious: Acts all serious and intelligent, but it doesn't take much for this facade to fail.
* CoolBigBro: This part of him doesn't appear often, but while Skipper acts more like a father figure to Private, Kowalski acts more like an older brother. Private is implied to [[BigBrotherWorship look up to him]], when he does something especially jerkish, Private is especially disappointed in him, [[BigBrotherInstinct he tends]] to [[CoverInnocentEyesAndEars cover Private's eyes and ears the most when something weird happens]], he is typically very calm and polite around Private (even if he does tend to be get into InsufferableGenius mode around him as well) and the two generally seem to get along pretty well in their off time.
* DeadpanSnarker: He has his moments of this.
* DitzyGenius: Many of his inventions and plans are... questionable.
* {{Flanderization}}: In the movies, he is serious, logical and calculating, playing the StraightMan to Skipper. Here, the serious part is removed and the other attributes are exaggerated to MadScientist levels.
* ForScience: He tends to do experiments that put his teammates in danger out of scientific curiosity.
* FourTemperamentEnsemble: The Melancholic.
* GadgeteerGenius: The team's primary source of HomemadeInventions.
* HiddenDepths: He can play banjo and sing really well. Also, despite his apparent social awkwardness and love issues (see Doris), "Mental Hen" shows that he kind of knows what works on females.
* HomemadeInventions: His specialty.
* IHaveNoIdeaWhatImDoing: Practically his CatchPhrase. Apart from, "For SCIENCE!"
* InsufferableGenius: Kowalski is ''incredibly'' arrogant about how intelligent he is, bordering on narcissism.
* InterspeciesRomance: He has a girlfriend named Doris who is actually a real dolphin.
* TheLancer: He is Skipper's NumberTwo, contrasting him both in appearance (Kowalski's tall and skinny, Skipper's short and stocky) and personality (Kowalski prefers to think, Skipper prefers to act).
* LargeHam: Not particularly to Skipper's degree, but he's keeping up.
* LiteralMinded: Pops up from time to time. He seems to be confused by the phrase "listen to your gut" because guts cannot vocalize. When Dr Blowhole uses the phrase "sleep with the fishes", he points out that fish technically do not sleep, and when Skipper says that he doesn't understand the meaning of the word "surrender", Kowalski defines the word for him.
* LoveHurts: His one-sided love of Doris the dolphin.
-->'''Julien''': Ooh, the dolphin-lady who broke him? Yes, he does go on and on about her.
* {{MacGyvering}}: He can create awesome gadgets from the garbage he finds in the zoo.
* MadScientist: He may not be the Evil version, but there's no doubt that Kowalski holds all qualifications for being as crazy a scientist as you'll get.
-->'''Skipper''': Kowalski, have you ''ever'' invented anything that doesn't eventually threaten to destroy us all?\\
'''Kowalski''': Let me think. Uhhhhh... No.
* MagicVersusScience: Is extremely skeptical of anything with a 'supernatural' bent. ''Can'', however, be convinced of its veracity if the problem persists long enough.
* MeaningfulName: A 'Kowalski' is a nickname given to somebody who works in the background dependably, but never gets any glory or basks in the limelight, which was definitely applicable to Kowalski in the first movie. It's also a gender neutral first name.
* {{Narcissist}}: Proof that the Narcissist can still be a really nice guy. It's demonstrated most often in his intelligence, but also in his leadership skills, looks and dancing ability. Kowalski is so confident in his intellect that he will regularly use himself as a primary test subject. Sometimes it works. Sometimes it backfires rather horribly. And sometimes...
--> '''Kowalski:''' I've just been perfecting a pain elimination helmet. As you'll see, ''(pulls cord, releasing heavy anchor)'' the neuron inhibiting matrix provides 100% protection from all forms of AAAAAAAAAARGH!!!! IT'S NOT PERFECTED!!!!
* NerdsAreSexy: He's not shy on fans. You can blame his VA for that. Also, while he usually doesn't really count in-universe, there were two female characters in the show who seemed to be interested in him to some extent (Blue Hen after he [[DistractedByTheSexy distracted her by dancing seductively]] and Doris in the last scene of the show, where it's implied they actually became a couple), while Skipper and Rico had one (Skipper had Kitka and Rico had Shelly) and Private had none. That's kind of impressive for the socially awkward nerd of the group.
* NeverLearnedToRead: His inability to read serves as a RunningGag.
* NiceJobBreakingItHero: The things he does ForScience usually result in this, such as his KickTheDog moment in "Friend-in-a-Box" (taking the circuit board from Mort's video game) that earns him a WhatTheHellHero from the others.
* NumberTwo: With the rank of Lieutenant, when Skipper goes AWOL, Kowalski does his best to take charge.
* PapaWolf: To Jiggles. He swears vengeance against the kiddies after thinking they ate Jiggles.
* PhraseCatcher: In early episodes, Skipper would often say "Kowalski, options." or "Kowalski, report." to him. This catch phrase has cropped up again halfway through season 2.
* PuppyDogEyes: Sports a particularly huge pair in the animatic for "It's About Time".
* RedOniBlueOni: The blue to Rico's red.
* SanitySlippage: Is prone to this in most of his ButtMonkey instances.
* ScreamsLikeALittleGirl: For somebody who's voiced by Jeff Bennett, Kowalski sure does have a high-pitched shriek, and we hear it on a pretty regular basis too.
* TheSmartGuy: He is the brain of the team.
* SniffSniffNom: His usual method of handling evidence, including chameleon footprints and a strand of King Julien's fur.
* StalkerWithACrush: Kicks off the events of "Loathe at First Sight" by attempting to divine Doris's location through studying dolphin migatory habits while planning to use his Love-U-Lator on her.
* TechnoBabble: Is very fond of giving his inventions techno babble sounding names, to the point of taking offence when the other penguins suggest very straightforward alternatives.
* VocalEvolution: Has a very subdued and deadpan delivery in the pilot and early episodes, emulating Chris Miller's delivery in the movies, but both the voice and the character become more quirky as time goes on.
* WouldHurtAChild: He was willing to shoot bunch of kids just because he throught that they were eating Jiggles.

[[folder: Rico]]

Rico - voiced by Creator/JohnDiMaggio - is the team Demolitions Expert - and their storage unit. Gluttonous, big-bellied, and impulsive, he usually speaks in short grunts, but he can be fairly coherent when the situation calls for it. Rico's special skill is regurgitating pretty much anything the penguins need - and a lot of things they don't - from a simple paperclip, to a stick of dynamite, to fan blades and a toilet seat, all the way up to a self-assembling air-to-ground missile-launching platform. And the reason he can do it, as far as anybody can tell, is because he ate them first...

To distinguish him from the similar Skipper, in the series Rico has a mohawk and a scar over his beak, possibly caused by hacking up too much stuff.

* AllergicToLove: In one episode, it's stated that he has "mushy love sensitivity."
* AmbiguousDisorder: While most characters seem to have problems, Rico in particular is... strange. He rarely talks and when he does, it's short, simple words, he is less intelligent than any of his teammates, he has a poor self control and has a fondness for dangerous things. It doesn't help that there's an episode where the other three penguins develop something called "pisces dementia" and act just as crazy ( well, somehow crazier ) than Rico. The way his co-workers treat him implies he may have some sort of intellectual and/or learning disabillity.
* AscendedExtra: In the original films he was the least developed penguin character. Here, he got a more recognizable character design (a tuft of feathers on his head and a scar over his face), an AxCrazy DumbMuscle personality, and his StomachOfHolding gag is turned UpToEleven.
* AxCrazy: Rico's 'thing'.
* BerserkButton: His berserk buttons are messing with his dolly or hurting his friends, especially Skipper.
* BigEater: Rico makes no attempt to hide his gluttonous nature. He will eat rotting food, walks blissfully through a field of mouse-traps for a fish in "Untouchable", fires himself out of a torpedo tube for herring in "Herring Impaired", and once accidentally ''ate Kowalski'' because he looked like candy, as just a few examples.
* TheBigGuy: Not only is Rico physically sturdier than the other three, in "Sting Operation" his block of ice melts significantly faster than either Skipper or Private's, showing he's heavier than them too.
* ChainsawGood: As Private said in one episode, "Oh, Rico! Chainsaw's YourAnswerToEverything!"
* {{Cloudcuckoolander}}: The episode "Friend In A Box" has Kowalski make a mind-reading device. When the other two penguins are disgusted with Kowalski (and he with himself), Rico thinks only "Fiiiiiiiiiiiiiish". When the other two penguins are proud of him, Rico ''still'' thinks, "Fiiiiiiiiiiiiiiish".
* CombinationAttack: Is a component of the most common move in the Penguins arsenal, which is for another Penguin to carry him around and fire him like a gun.
* DrivesLikeCrazy: Rico is usually the driver of the team, which can cause problems when he gets distracted.
* DumbMuscle: There are many examples of Rico not being too bright...
* ExtremeOmnivore: Not merely a BigEater regarding food, Rico is capable of eating absolutely anything and regurgitating it for later use.
* FatBastard: The TokenEvilTeammate of the Penguins and he has a large gut.
* FatIdiot: A chubby penguin who is not smart at all.
* {{Flanderization}}: In the movies, Rico started by choking up paperclips and matches, in number 2 he produces a switchblade from nowhere, but by the Penguins movie he was capable of eating Dave the Octopuses' entire snowglobe collection, and by the series he gained his full on StomachOfHolding.
* FourTemperamentEnsemble: The Sanguine.
* HyperspaceArsenal: Apparently his stomach contains a rare atom which can create absolutely anything.
* IntelligibleUnintelligible: At times, his speech can be understood fairly easily, especially in later episodes. Either way, if what he's saying is important to the plot, the other penguins will usually [[RepeatingSoTheAudienceCanHear provide some sort of translation]].
* LoveMakesYouCrazy: Or ''crazier''. See "Hello, Dollface" or "Kaboom and Kabust".
* MadBomber: He has periods when his first response to ''anything'' is to cough up a stick of dynamite.
-->'''Rico''': ''Kaboom kaboom kaboom?''\\
'''Skipper''': ''Rico, '''enough''' with the dynamite already.''
* ManlyGay: Rico's Miss Perky doll only shows in a handful of episodes, and Rico shows the most instances of attraction to other males, while having no relationships with a real, living female. Since homosexuality is usually associated with femininity, it's funny to see the most violent, aggressive male show the most signs of homosexuality.
* NightmareFetishist: When something unpleasant is happening to somebody else - or even to them - the other penguins may be horrified but Rico is more likely to stare with a big grin on his face. Sometimes it's just background but other times it's disturbingly obvious.
** Like Rico serenely munching away on popcorn while watching a brutal NatureDocumentary with penguins getting gobbled up by leopard seals.
** When Kowalski and Private are clearly horrified/nauseated at Skipper's broken flipper in "I Was a Penguin Zombie," Rico looks… a little too interested.
** In "Roger Dodger", as Roger is being pummelled off-screen by the rats, Rico stares at said beatdown, a blank smile on his face, his left eye twitching, and licks his beak at the end.
* NauseaFuel: In-universe example. The only thing that makes him gag is love - and Private's Anti-Cute attack.
* OverlyLongTongue: Rico's tongue hangs out of his mouth a lot and is repeatedly stretched.
* PersonOfMassDestruction: So very much.
* PsychopathicManchild: Of the DumbMuscle type. He also acts like a disappointed child whenever Skipper doesn't allow him to use explosives.
* RedOniBlueOni: The red to Kowalski's blue.
* RuggedScar: The scar over Rico's beak wasn't there in the movies and has never been explained in the series, mostly existing so that he's easier to tell apart from Skipper, whom he otherwise closely resembles.
* SingingVoiceDissonance: Later episodes add a running gag of him randomly singing [[https://www.youtube.com/watch?v=4fwOWv_gm4M "Fiiiiiiiiiissssh!"]] in a clear baritone voice.
* SilentSnarker: Frequently.
* SpeechImpediment: A pretty interesting example - Rico is only semi-verbal ( he can talk, but it's usually just really short words and phrases ) and when he talks, it's kind of muffled and raspy.
* StomachOfHolding: He can swallow almost anything and regurgitate it for later use. He has coughed up things ranging from paperclips and lit TNT, to an Air-To-Ground missile and platform. He's even capable of ''swallowing and regurgitating other characters safely.''
--> '''Kowalski:''' The things I have seen...
* TokenEvilTeammate: The mischievous, psychotic, loose cannon of the penguins.
* TooKinkyToTorture: Rico generally doesn't seem to be so adverse to pain as the other penguins.
* TrademarkFavoriteFood: ''Fiiiiiiiiiiiiiish!''
* TurnTheOtherCheek: Rico tends to forgive people quite easily for anything, with the general implication that he's done something similar. When Marlene went feral and attacked him outside the zoo, he had to stagger back into the zoo with her tying him up with his own tongue. Upon receiving her apology for going feral, he replied simply, "Meh, what you gonna do?"
* UncleanlinessIsNextToUngodliness: It is often suggested that along with his other bad habits, Rico smells bad or carries disease - in "Stop Bugging Me" he makes friends with cockroaches (they met him hanging out behind a dumpster) and in "Cradle And All" the penguins initially assumed that the smell of a soiled diaper was actually coming from him.

[[folder: Private]]

The youngest member of the team. Voiced by James Patrick Stuart, he tends to be the most sane and logical — at least in comparison to Skipper's paranoid delusions, Kowalski's mad science, and Rico's love for explosions. Sometimes he's also got a little bit of childish naïveté. He has a tendency to get the sucker jobs.
* BadassAdorable: His cuteness is actually ''weaponized'' in "Cute-astrophe".
* BewareTheNiceOnes: Private can pull off a MomentOfAwesome just as easily as any of the other penguins. Betraying his belief that [[RousseauWasRight all animals are basically good]] also serves as a BerserkButton for him.
* BigBrotherWorship: While they aren't actually brothers, Private seems to look up to Kowalski, as implied in ''Mask of the Raccoon'' and ''Brain Drain''. Out of all penguins, he is usually the one who is most disappointed and scared when he does something jerkish, probably for this very reason.
* BishieSparkle: Parodied, his weaponized cuteness includes a spontanously generated ''rainbow''. In High moltage where he was molting, it had the opposite effect of REALLY grossing people out.
* ButtMonkey: He's the team rookie, after all.
* CheerfulChild: The youngest of the penguins, Private is the most cheerful zoo animal.
* ComicallyCrossEyed: Private has [[FishEyes outward cross-eyes]], giving him a constantly goofy expression, which is in line with him being childishly naive. He's still TheHeart of the team, and considered the cutest one, and is often the OnlySaneMan compared to his AxCrazy comrades.
* TheConscience: Though usually holding the moral high ground, he also tends to be rather timid when first voicing his concerns, gradually losing his patience as HilarityEnsues.
* CutenessProximity: Honed to the point of becoming an incredibly effective weapon in "Cute-astrophe".
* TheCutie: There seems to be an in-universe consensus on this, with both Skipper and Kowalski reassuring him of being "Adorable!" on separate occasions. They also use this trait as a tactic once in awhile, and it even features as a plot point in one of the episodes, wherein he becomes jealous that his "title" has been handed over to someone else.
* DarkAndTroubledPast: Parodied when Private's {{backstory}} is revealed in "Mr. Tux". He used to be a hardcore miniature golf player in Florida.
* {{Flanderization}}: Less so than the other penguins, but his British accent is more pronounced.
-->'''Skipper:''' You just stick to the cuteness and the hackney Britsh Slang. "Okay, guv'nor"?
-->'''Private:''' Right Skipper. I'm a jolly pip, I am!
* FlorenceNightingaleEffect: The cause of his crush on student nurse Shawna.
* FourTemperamentEnsemble: The Phlegmatic.
* TheHeart: Spelled out in "Command Crisis."
* HiddenDepths: He likes Shakespeare and he used to be professional mini golfer.
* HisNameReallyIsBarkeep: Private is his name ''and'' his rank.
* InnocentBlueEyes: He's naive and pretty childish and he has bright blue eyes to go with it.
* LoveMakesYouCrazy: His crush on HospitalHottie Shawna in "LoveHurts" led him to deliberately injure himself. When the others threaten to come between them, he improvises a [[WoundedGazelleGambit Wounded Penguin Gambit]].
* NiceGuy: According to Julien, he's the nicest guy in the zoo. Private is generally the most pleasant, kind-hearted and friendly member of the penguin's crew and he is usually the only one who is willing to accept new animals in the Zoo without being paranoid about them.
* SanityBall: Most often, it's in his flippers. "Skorca!" inverts the situation by having him paranoid about the title character and the other penguins not believing him.
* SweetTooth: Especially when it comes to butterscotch lollipops.
* TokenGoodTeammate: The most well-intentioned and unambiguously heroic member of the group.
* TrademarkFavoriteFood: Peanut butter winky. Also butterscotch lollipops.
* VagueAge: While with other penguins you can at least be sure that they are adults, Private, being the youngest and most immature, can be seen as either a young teenager or just an immature adult.
* WhyDidItHaveToBeSnakes: He's afraid of badgers, and not fond of cockroaches.

[[folder: King Julien XIII]]

A ring-tailed lemur and (apparently self-proclaimed) king. Egomaniacal and ditzy, he's the closest thing the show has to a recurring antagonist. But at the same time, the penguins tolerate him when he's not being ''that'' big of a jerk. Julien "rules" over a small empire also comprising Maurice and Mort (see below). Voiced by Danny Jacobs.
* AmbiguouslyBi: He likes to dance; he's obsessed with his own booty; he gives bedroom eyes; he's [[{{Crossdresser}} dressed in drag on occasion]] (though that may be even less significant to his actual sexuality than in RealLife crossdressers, as he normally wears nothing but his crown); despite his attempts at maintaining a ladies' man image, he was unfamiliar enough with females that he didn't know where mammal babies come from, and was disgusted to find out the truth (though that may just be simple CloudCuckooLander status); and one episode blatantly ships him with Rico. Oh yeah, and he even said that he has a GirlfriendInCanada. On the other hand, he "courted" Marlene twice and has hit on Rico's Ms Perky doll. WildMassGuessing has also pegged him as Ambiguously {{Transsexual}}, thanks to the AnimalGenderBender mentioned below. Taken to its limits with Julien in "It's About Time," when he sees Skipper and Private wrestling over the episode's MacGuffin and begins poking Maurice.
-->'''Julien''': Ah, look at them Maurice. Why can't we play affectionately like that?
* AnimalGenderBender: RealLife lemur groups are ruled by females. Then again, now he's in a zoo with only two other lemurs, both of which are male, and he's probably the nearest thing they've got. Also, when he claims Eggy is his, Kowalski says mammals can't lay eggs and asks if he's part platypus, without mentioning that males don't lay eggs either. (Then again, see above.)
* AntiHero: The closest thing the show has to a recurring antagonist - but he also repeatedly helps out the penguins when it benefits him.
* AnythingThatMoves: Forget AmbiguouslyGay or BiTheWay, it's easier to believe that Julien just loves to be admired, and doesn't care whether that admiration is sexual or otherwise.
* AttentionWhore: He views himself as King of the zoo.
* BerserkButton:
** Never, EVER touch King Julien's feet. And if you ever decide to ''skate'' over them... well, say hello to Julienderung.
** "Friend-in-a-Box" suggests that a FreudianExcuse may be involved. After Mort becomes obsessed with a portable video game, Julien goes out of his way to try and force Mort upon his feet, claiming that he wants to experience the joy of kicking Mort off. Eventually, he even goes so far as to beg Maurice and the penguins to pay attention to the royal feet.
** NEVER forget or ignore King Julien Day, for that matter... "Which forgetter is next for the whooping?! Come on, I want you to hurt LIKE I DO! [[EvilLaugh UAHAHAHAHAA!]]"
* BuffySpeak: A normal part of his speech pattern, along with Malaproping; he frequently makes comments like "What is up with the unbig tiny-littleness of my royal estate?"
* TheCaligula: Parodied by his existence.
* ComicTrio: With Maurice and Mort; he's TheLeader.
* CrazyJealousGuy: Thanks to his believing that [[ItsAllAboutMe It's All About Him]], he quickly gets jealous when somebody/something else is getting the attention he thinks he deserves. He also doesn't like that Marlene is crushing on Fred rather than him. He doesn't give a reason ''why'' this makes him so upset, other than that Marlene was "in love with Julien" the whole time before... which was another lie.
* DepartmentOfRedundancyDepartment: Part of King Julien's regular speech pattern.
* DistressedDude: He's this thrice: once with a feral Marlene, once with Savio the boa and once with the Red Squirrel.
* EvilLaugh: Not as amazing as other Nicktoons, but pretty close. Usually PlayedForLaughs, much like most of the tropes on this page.
* FatAndSkinny: Skinny Julien is the silly one, and fat Maurice is the StraightMan.
* {{Flanderization}}: A bit more of a JerkAss than in the movies, but he still has his moments (such as saving [[spoiler:Skipper]]'s life in one episode). His dialect is also noticeably stronger.
* FriendlyEnemy: To Skipper. The two spend most of their shared screentime arguing and generally being annoyed by each other, but Skipper will go out of his way to help Julien, and Julien has gone to Skipper to have his problems fixed. They were actually mistaken as 'BFF's by Skipper's ArchNemesis Dr. Blowhole... and the other penguins said he had a point.
-->'''Julien:''' So I face danger and the adventure of a lifetime and nobody will ever know about it?!
-->'''Skipper''': Welcome to my world. That makes you an honorary penguin.
-->'''Julien''': Does that mean I am your BFF?
-->'''Skipper''': Eehh... we'll keep that code on the QT.
* FunPersonified: He's the master of boogies, singing and parties.
* HiddenDepths: The Lost Treasure of the Golden Squirrel is both vast and cursed, causing intense greed in those that get near it. Only someone pure of heart is immune to this curse and that turns out to be Julien. Whereas everyone has grandiose visions of the dreams the treasure could pay for, Julien just sees himself hanging out at the zoo with Maurice and Mort. Julien is as surprised as anyone to learn he's already living his dream.
* IAmNotWeasel: In one episode, he tries to tell a CrazyCatLady that he is not a kitty.
* IncidentalVillain: Being a spoiled ego-maniacal control freak, he's the most common antagonist on the show, with his schemes often being the catalyst for larger plots or being the main threat of the episode. But, despite being something of a JerkAss, he is only casually disliked by the rest of the cast. The other characters tolerate him when he's not doing anything antagonistic, since he's not generally a bad guy, just a spoiled jerk who occasionally screws with people to get his own way.
* InSeriesNickname: "Ringtail."
* InterspeciesRomance: A one-sided crush on Marlene, an otter.
* ItsAllAboutMe: He is the King, and so ''obviously'' is more important than any non-kingly animals, right?
* JerkWithAHeartOfGold: He has his moments of being... less mean to the others. Notably, King Julien Day is a holiday dedicated entirely to him, participation was mandatory and lack of participation meant severe punishment, but unexpectedly includes a closing ceremony where Julien rewards his subjects.
* LargeHam: With a side of {{Keet}}.
* TheLoad: Bringing him along usually does more to hurt the penguins than help.
* {{Malaproper}}: He is a bit of a word mangler. Examples include "These stitions are very super!" and "No one will be [[GettingCrapPastTheRadar sucking seed]]!"
* ManChild: He has a tendency to throw childish tantrums, and on one occasion starts talking to his cuddly toys when he's depressed.
* TheMillstone: When he tags along on the Penguins' missions, he occasionally helps, but usually ends up being more of an obstruction.
* {{Narcissist}}: To the point that he has distinct ho yay with a robot copy of himself.
--> '''Julien:''' That is not very interesting to be because it is not ''about'' me. See how that works?
* NiceHat: His crown. He loves it a lot, but he has a spare for emergecies.
* NominalHero: Taken UpToEleven in the second movie, where he is selected for a musical onslaught against the monster MP3 player.
* PapaWolf: To save the baby Fusa from a snake. He even tells the snake to eat him first when they get cornered, hoping his fuzzy build will make it choke so it can't eat the baby.
* SingingVoiceDissonance: Nothing major, but the end of his short Congaga song in "Eclipsed"' is rather impressive, especially considering his usual voice is not all that pleasant.
* SixthRanger: When the squad is lacking in numbers, Julien often comes in as a substitute.
* TokenEvilTeammate: Not evil ''per se'', but a narcissistic {{Jerkass}} who often tags along with the penguins but only cares about himself.
* TrueCompanions: Among himself, Maurice and Mort. Arguably.
* UpperClassTwit: Considers himself to be king of the zoo, and isn't very smart.
* WhatTheHellIsThatAccent: The same general quasi-African accent in the movie, only (as mentioned above) more exaggerated.
* WholesomeCrossdresser: He dressed as a cheerleader in the episode "Miracle On Ice" and was jealous of Skipper's "pretty pink bow" in "Miss Understanding". The "wholesome" is debateable, but his un-wholesome characteristics are not related directly ''to'' the crossdressing.

[[folder: Maurice]]

An aye-aye who serves as King Julien's right hand man and advisor, although Julien rarely follows his advice. Although he seems easily annoyed by Julien's antics, Maurice isn't above saving his life. Voiced by Creator/KevinMichaelRichardson.

* BigBrotherInstinct: He actually gets along with Mort better than with Julien and there are times where he seems to feel sorry for him.
* TheBigGuy: See FatAndSkinny, above.
* BrainwashedAndCrazy: Gets like this in "Kingdom Come" thanks to a bad batch of lychee nuts.
* ChessmasterSidekick: Has shades of this. At times, it seems that he ''really'' doesn't want to be part of Julien's world, but for some reason he stays faithful.
* CloserToEarth: He is easily the sanest of the three lemurs.
* ComicTrio: The OnlySaneMan to Julien's Leader and Mort's Fool.
* FourFingeredHands: A strange aversion. Maurice has five fingers/toes, yet Julien and Mort each have four.
* FunnyAnimalAnatomy: [[http://www.google.co.uk/images?um=1&hl=en&rlz=1T4ACAW_enGB342GB344&biw=1345&bih=481&tbs=isch%3A1&sa=1&q=aye+aye&aq=f&aqi=g10&aql=&oq= This is what a real aye-aye looks like.]] Eek.
* OnlySaneMan: When you're working for someone like Julien, of course someone has to be there to rationalize with him.
* ServileSnarker: Despite being aware how insane Julien is (and occasionally making snarky comments about it), he still follows his orders.
* StealthPun: An aye-aye who is King Julien's YesMan.
* StraightMan: To King Julien and Mort.
%%* TheCreon

[[folder: Mort]]

A mouse lemur who is also part of Julien's companions. He is pretty much there to be the victim of physical comedy, although Marlene in particular seems to care for him. Voiced by Andy Richter.
* BadassAdorable: Although small, dumb and pathetic, he's shown to be capable of beating Skipper at arm wrestling. Another episode has him ''uprooting trees''.
* BerserkButton: Not surprisingly, King Julien's feet, as indicated by his reaction to being separated from them.
* TheChewToy: To the point where he's declared [[FeelNoPain too dumb to feel pain]]. Lampshaded in one episode, where he says, "Yay, I'm expendable!"
* CloudCuckooLander: Mort doesn't seem to be in touch with reality often...
* ComicTrio: The Fool to Julien's Leader and Maurice's OnlySaneMan.
* CreepyChild: He's not quite a child, but he certainly has moments where he comes off as this. For example, he's way happier about being used as bait for a hungry falcon than he should be.
-->"I'm tasty!"
* DisabilitySuperpower: In "Sting Operation", it's revealed that he's literally too stupid to feel pain.
* TheDitz:
-->"Which of the colours is blue?"
* FearlessFool: See above.
* FeelNoPain: Also see above.
* {{Flanderization}}: In the movie, the royal feet get merely a passing reference when Julien misinterprets Mort cowering in fear next to him. Here, Mort has a full blown fetish for Julien's feet.
* ICallHimMisterHappy: Non-genital example. He's named his tail "Rodney".
* InSeriesNickname: "Sad Eyes".
* OlderThanTheyLook: WordOfGod is that he's actually the lemur equivalent of a thirty-five-year-old. Mouse lemurs simply [[http://www.google.co.uk/images?rlz=1T4ACAW_enGB342GB344&q=mouse+lemur&um=1&ie=UTF-8&source=og&sa=N&hl=en&tab=wi&biw=1345&bih=481 look like babies their whole lives]].
* PasteEater:
-->"I'll get the glue."\\
"To eat?!"\\
* RidiculouslyCuteCritter: He's cute enough to rival Private.
* SmallAnnoyingCreature: He's this with his feet fetish.
* TagalongKid: Quite often.
* TeamPet: He's either TagalongKid, this or both.
* WhatTheHellIsThatAccent: A completely unidentifiable one. It usually comes across as heavily warped BabyTalk.
* {{Yandere}}: Mort is quite devoted to King Julien, and not just to the royal feet.

!Central Park Zoo
[[folder: Mason and Phil]]

A pair of chimpanzees. Mason is a stuffy British-accented one (voiced by Conrad Vernon), while Phil is mute and communicates only through ([[ShownTheirWork completely accurate]]) sign language.
* DivergentCharacterEvolution: Thanks to greater focus on them (compared to their OneSceneWonder status in the original movies), Mason's NeatFreak nature and Phil's relaxed and slovenly behavior have been revealed and developed.
* FourFingeredHands: Averted for the sake of Phil's sign language.
* NeverLearnedToRead: Mason is illiterate. Phil, on the other hand, is the penguin's go-to translator, with Mason translating his signing.
* OddCouple: Phil is a total slob, much to NeatFreak Mason's chagrin.
* RepeatingSoTheAudienceCanHear: While this is usually justified for the benefit of other characters that don't know sign language, Mason will do this even if Phil is the only other one around.
* RoadApples: Mason mentions throwing poo a couple of times, though this is never seen on-screen.
* ShownTheirWork: Phil's sign language is completely accurate.
* TheSpeechless: Phil.

[[folder: Marlene]]

A female otter who tolerates the penguins. Playful and kind, she tries to see the best in others and is one of the only characters who cares for Mort's well-being. Voiced by Creator/NicoleSullivan.
* ActionGirl: Has saved Skipper and Kowalski's lives on separate occasions.
* BerserkButton: Never leave her outside or she'll go nuts!
* TheChick: The only major female character. She often joins the penguins as a fifth member on their adventures.
* DeadpanSnarker: Goes hand in hand with her [[OnlySaneMan Only Sane Woman]] status.
* {{Expy}}: Arguably, she's one for Gloria the hippo and/or Alex the lion.
* HartmanHips: At the very least, she's obviously more curvy than your average otter.
* JekyllAndHyde: If she leaves the zoo grounds, she becomes feral. Creator/DeeBradleyBaker voices her feral side.
* NiceGirl: Snarkiness aside, Marlene is mostly a friendly and welcoming person who refuses to judge others before getting to know them
* OnlySaneWoman: Along with Maurice, she seems to be the only one trying to reason with the main characters. She even tries to provide some stable ground when Skipper seems to be losing it.
* PlayfulOtter: Love of clams? Check. Playful and cute? Check.
* SlidingScaleOfBeauty: World Class Beauty as Arlene.
* SmartPeoplePlayChess: Shown playing chess with Skipper in "Crown Fools".
* TheSmurfettePrinciple: She's the only protagonistic female character.
* StealthHiBye: Does this on occasion. Skipper even tells her to say something before surprising them once.
* SuperPoweredEvilSide: Due to being born in captivity, whenever she leaves the confines of the zoo's walls she goes 'feral', which results in an increase in strength, speed, and ferocity, but a decrease in intelligence.
* WomenAreWiser: In comparison to the penguins (save for Private). Often overlaps with OnlySaneWoman.

[[folder: Alice]]

Voiced by Mary Scheer. She is a zookeeper who doesn't seem to care too much for her job, and expresses annoyance at tour groups.
* CatchPhrase: "Whatever."
* ButtMonkey: She suffers a lot, though she deserves it most of the time.
* DeadpanSnarker: Has moments of this.
* {{Jerkass}}: And she usually [[ButtMonkey suffers]] for it.
* GettingCrapPastTheRadar: Her dance that went viral.
* TheSlacker: She puts the bare minimum of effort into her job, and frequently responds to suspicious occurrences with "ahh, whatever."

[[folder: Bada and Bing]]
Two hulking, thuggish gorillas living in the zoo. Bada is dark grey, Bing is a lighter shade of grey.
* AnimalsNotToScale: They are unusually large gorillas, not much smaller than Burt the elephant.
* DumbMuscle: Neither of them is too bright, but they are incredibly strong.
* KillerGorilla: They occasionally act as bullies to the other animals, and may go on a rampage if you steal their food.
* MeaningfulName: "bada bing bada boom" is a stereotypical mobster phrase
* ThoseTwoGuys: Seldom seen without each other.
* TrademarkFavouriteFood: Bananas.

[[folder: Roger]]

A large, friendly alligator. Although the others are terrified of him at first, they grow to like him once they find that he is pacifistic and friendly. Eventually he moves into a habitat in the zoo. Voiced by Richard Kind.
* AmbiguouslyGay: A friendly, sensitive, soft-voiced alligator who wants to sing Broadway tunes and bake muffins to placate his enemies…
* ChekhovsGun: His singing in "Roger Dodger".
* DoesNotKnowHisOwnStrength: When he's in a confined space with the penguins, he becomes a menace simply by turning around.
* GentleGiant: He has to undergo a mind-swap with Rico at one point because he's simply not aggressive, which makes him an easy target for the sewer rats.
* NiceGuy: Despite his fearsome appearance, he's friendly, soft-spoken and mild-mannered.
* OutOfCharacterMoment: He seems genuinely annoyed at Julien's pranking in the "April Fools" episode.
* ReluctantMonster: He is a terrifying alligator, but also a very nice and mild-mannered person.
* SewerGator: Roger is a sewer gator who is good friends with the penguins.

[[folder: Burt]]

The resident elephant at the zoo. Though normally an easygoing guy, he's easily annoyed by anyone messing with his food. But if you ''do'' manage to set him off...
* BewareTheNiceOnes: Don't get him angry.
* BerserkButton: Don't touch his food.
* CulturedBadass: Burt is a lover of Victorian (particularly Dickensian) literature, and an accomplished artist. He also admits to have always wanted to visit Paris. He's also a huge elephant, and single handily beat up Savio the giant boa.
* GentleGiant: A good-natured elephant.
* TrademarkFavoriteFood: Peanuts.
* InSeriesNickname: Long Trunks and Big Grey.

[[folder: Leonard]]
A paranoid koala who first appears in "Night and Dazed". He is rather afraid of the penguins in their attempts to be nice to him, mainly because he's often the target of unintentional injury. Voiced by Dana Snyder.
* DeepSleep: He is nocturnal to an absurd degree; he essentially goes into a coma the moment sunlight hits him and can't be woken until it sets.
* NotSoDifferent: as seen in "Kanga Management". Because he's nocturnal and Joey's diurnal, Joey is angered by Leonard always doing something when trying to sleep...but at the end, they bond when they realize that they [[spoiler:both hate the penguins]].
* ProperlyParanoid: You would be too, if the penguins accidentally blew up your habitat.

[[folder: Joey]]

An ill-tempered, violent kangaroo with a stereotypical Australian accent. Antagonist to both the penguins and the lemurs most of the time. Voiced by James Patrick Stewart.
* AnimalGenderBender: He has a pouch.
* HairTriggerTemper: He'll beat up other animals just for being in his habitat... and deliberately keep them there so that he can beat them up some more if they try to escape.
* {{Jerkass}}: Joey is excessively violence prone and unfriendly.
* KangaroosRepresentAustralia: He speaks with an UsefulNotes/AustralianAccent.
* StupidEvil: When fighting the "skorca", he beats off the penguins first because he doesn't want ''them'' to win against it. Skipper calls him out on it, but Joey dismisses him on the grounds that "Joey doesn't share".
* ThirdPersonPerson: Lampshaded in "Kanga Management".
* TheWorfEffect: Officer X and Eggy have pulled one on him.

!Animals Outside the Zoo
[[folder: Fred]]

A not-too-bright squirrel who lives in the park. When the penguins leave the zoo, they often cross paths with him. Voiced by Fred Stoller.
* AmbiguouslyGay: He seems mostly indifferent to Marlene when roped into dating her, and didn't seem too upset when she broke up with him, and is shown to live with Antonio ("the otter bachelor of Central Park").
* AmbiguouslyJewish: Has some traits of this.
* CrouchingMoronHiddenBadass: His "fight" with Julien was initially interpreted to be this until he revealed he simply did everything accidentally and let Julien's clumsiness do the rest (which a humiliated Julien admits).
* CuddleBug: "What am I gonna do, say no to a hug? I love hugs!"
* DistressedDude: He gets tied up by the Red Squirrel.
* TheDitz: Intelligence is not his strong point.
* DumbIsGood: He's too stupid to be evil, as the Red Squirrel learned pretty quickly.
* GeniusDitz: He actually does know the answer to the question that scientists have been trying to figure out for years; how much wood would a woodchuck chuck if a woodchuck could chuck wood?
* HorribleJudgeOfCharacter: He considers Archie his best friend (despite calling him a backstabbing liar and a cheat) and even allowed ''Julien'' to be his financial adviser when he became rich. In addition, he is prone to trusting complete strangers based on [[CuddleBug how well they hug]].
* LiteralMinded: Spelled out in one episode where Marlene tries to date him. She asks him to show her the town and he answers by pointing and saying, "That way."
* InSeriesNickname: Bushy Tail.
* MadnessMantra: "Acorns! Jackpot! Acorns! Jackpot! Acorns! Jackpot!"
* RagsToRiches: He becomes wealthy (at least in squirrel terms) following his mass acquisition of several hundred pounds of acorns. He's promptly exploited first by Julien and then by the Red Squirrel who want his money for their own selfish purposes.

[[folder: Max]]

A stray cat whom the penguins first meet in a failed attempt to fly to the moon. Max has reappeared in several episodes, often seeking help from the penguins. Voiced by Wayne Knight.
* TheCameo: He appears for about two seconds in "The Helmet".
* InSeriesNickname: "Moon Cat". It's lampshaded by him when he points out that he's not really from the moon.
* LovableCoward: Nearly always appears when fleeing a threat of some sort.
* TastesLikeFriendship: In his debut, he gives up trying to eat the penguins (who are unaware of his intentions) when they hand him some food. He so rarely gets food on his own that he is grateful, and pretty much remains their friend after that.
* TrueCompanions: He'll occasionally try to abandon the penguins to save himself, but always come back when he realizes they are his only friends.
* YankTheDogsChain: In his introduction, he falls for SchmuckBait; a pigeon trolls him by pretending to be unable to fly. The pigeon then rubs it in his face and flies off, leaving a starving Max to wish for a bird that couldn't fly. He spends an awful lot of time being the ButtMonkey even after the penguins give him food.

[[folder: Eggy]]
An adorable little duckling whose egg came under the penguins' care during "Parental Egg-Stinct". After hatching and being returned to Mama Duck, he showed an innate talent for Skipper's style of leadership.
* AllYourPowersCombined: Thanks to being cared and trained by the penguins while still an egg. At the end, Julien teaches him how to dance, resulting in Eggy talking like Julien (see BuffySpeak above).
* BadassAdorable: He's a cute little duckling, but he achieved powerful combat skills under the penguins' care.
* BuffySpeak: He copies Julien's idiosyncratic speech patterns.
* DefeatMeansFriendship: With King Julien.
* TroublingUnchildlikeBehaviour: How Mama Duck views his obsession with combat and commando operations.
* {{Tykebomb}}: Leads to DefusingTheTykebomb in "Hard Boiled Eggy".

[[folder: Kitka]]
A falcon who crash-landed in the zoo, setting off the events of "The Falcon and the Snow Job" and serving as Skipper's TemporaryLoveInterest as he fought to clear her good name.
* CarnivoreConfusion: Directly acknowledged and the root of the others' distrust. She tries to allay concerns by swearing not to eat anyone in the zoo. [[spoiler: She didn't know that they also had friends ''outside'' the zoo, like Fred.]]
%%* ClearTheirName
%%* FallingInLoveMontage
* GirlOfTheWeek: Skipper's LoveInterest for one episode.
* LoveAtFirstSight: With Skipper.
* ShipSinking: Didn't make any impact on the Skipper/Marlene fanbase. Possibly lampshaded by Skipper; even he admits that it wasn't working out.

[[folder: Doris]]
A dolphin whom Kowalski still yearns after. Appears in the GrandFinale, "The Penguin Who Loved Me."
%%* {{Adorkable}}
* BadassAdorable: She may not have as much experience as the crew, but holds her own during the GrandFinale.
* BeautyMark: Has one just under the corner of her left eye.
* FriendlyPlayfulDolphin: She's kind, friendly, and cares for her brother. [[spoiler: It's not her fault that her brother is a {{Supervillain}}.]]
* TheGhost: She is continually mentioned throughout the series, but doesn't appear until the finale.
* InterspeciesRomance: Aside from Kowalski's crush on her, she's dated several others outside of her species.
* JustFriends: She tries telling Kowalski that she she likes him, she doesn't ''like'' like him.
%%* SapientCetaceans
* TailfinWalking: Manages this by getting her fins on [[spoiler:one of Dr. Blowhole's scooters]].

[[folder: Parker]]
A platypus who helps Doris contact Kowalski during "The Penguin Who Loved Me".
* TheAce: Kowalski can't help but be jealous of him, especially when he manages to impress Skipper with his fighting skills.
* EverythingsBetterWithPlatypi: He appears to be a heroic and helpful platypus. [[spoiler: He is eventually revealed to work for Dr. Blowhole.]]
* PoisonousPerson: Has venomous spurs on his feet, which he uses to help take down opponents with ease.
* ScrewThisImOuttaHere: [[spoiler:Immediately backs down when faced with Rico aiming a bazooka his way.]]

[[folder: Manfredi & Johnson]]
Two former members of Skipper's team, they are often name-dropped whenever some ill fate or accident is mentioned. They are ''finally'' seen in "The Penguin Who Loved Me." James Patrick Stuart voices Manfredi while Danny Jacobs voices Johnson.
* ThoseTwoGuys: From what we know about them, which isn't much.
* NoodleIncident: Manfredi (the larger sized penguin) has lost his left foot, now replaced by a stick while Johnson (the Kowalski-sized penguin) broke his right flipper and seems to have a burn on his body. We have no idea which of the stories (if any) led to these accidents.
* UnexpectedCharacter: Everyone assumed these guys were ''dead'' and no one expected to actually see them.
* YankTheDogsChain: The penguins finally find them, but the two remain unnoticed despite their pleas for help and given how the group said they won't be back again, it looks like these guys are screwed.

[[folder: Dr. Blowhole]]

A mad scientist and primary antagonist to Skipper. At first, he was only mentioned in passing by Skipper, leading to Marlene's belief that he didn't exist. The half-hour "Dr. Blowhole's Revenge" showed him to be real. Voiced by Creator/NeilPatrickHarris.
* ArchEnemy: To Skipper.
* BiggerBad: Is mentioned as Skipper and the Penguins' ArchEnemy, but rarely appears or has a large effect on the series.
* BadassBookworm: He might be an extremely intelligent scientist who doesn't fight often, but when we actually see him fight, he's able to go toe to toe with Skipper in a prolonged fight.
* CallingYourAttacks: All of his inventions announce themselves with the same dramatic voice whenever they are activated.
* DisproportionateRetribution: He tried to flood the world in revenge for being used as a show dolphin.
* ElectronicEyes: Has a cybernetic eye that [[EyeBeams fires lasers]].
* EmbarrassingFirstName: Francis.
* EvilCounterpart: At least with the technology and science department, to Kowalski.
* EvilGenius: He is a brilliant inventor with a grudge against the penguins.
* EvilIsBigger: He towers over the penguins.
* EvilIsHammy: He presents himself in an over-the-top, dramatic manner.
* EyeBeams: Can fire a laser from his cybernetic eye.
* FriendlyPlayfulDolphin: Subverted. Despite being a dolphin, he's vile and wants to destroy the penguins. [[spoiler: He temporarily becomes a straight example when he gets his memory erased.]]
* GiantEnemyCrab: Has lobster henchmen, and also made Crome Claw, a giant lobster with a metal claw.
* GoodScarsEvilScars: Has a scar over his right eye that's just barely visable under the metal plate covering it.
* HoistByHisOwnPetard: [[spoiler:Ultimately has his memory erased by his own machine.]]
* InsistentTerminology: No, Julien, he's ''not'' a fish.
* KnightOfCerebus: As goofy and comicbook supervillain-y as he appears, things become a whole lot more DarkerAndEdgier whenever he shows up with the stakes getting higher.
* MadScientist: An evil inventor.
* TheReveal: [[spoiler:He and Doris are siblings.]]
* SapientCetaceans: He is a dolphin and an EvilGenius.
* ShoutOut: His name and status as a MadScientist ArchNemesis seems to be a nod to [[Franchise/JamesBond Dr. Blofeld]].
* TailfinWalking: He stands on his tail-fins on a segway.
* VerbalTic: He has habit of pronouncing penguins as "peng-you-ens". According to Kowalski, he probably does it just to tick them off. While not exactly verbal, he also has a habit of having his computer dramatically announce the names of his creates.
* VileVillainSaccharineShow: He fits it to an E, although half the main protagonists are [[HeroicComedicSociopath Heroic Sociopaths]] with little to no concern for collateral damage
* VillainSong: Get's a few in "Doctor Blowhole Strikes Back" (ItMakesSenseInContext). It's actually a ''plot point'' that he gets the best songs. Most notable being "[[http://www.youtube.com/watch?v=b67O9qr8NXA&feature=related Brand New Plan]]", which is a pretty straight up VillainSong. Helps he's voiced by Creator/NeilPatrickHarris.
%%* WeHaveReserves
* WhereDoesHeGetAllThoseWonderfulToys: Kowalski [[RunningGag complains about]] [[GreenEyedMonster bad guys]] ''[[GreenEyedMonster always]]'' [[GreenEyedMonster getting the coolest stuff]], but it's never explained where he gets the resources required for them.
* XanatosSpeedChess: He normally has a plan to begin with, but is more than capable of improvising on the fly. Referenced in "[[VillainSong Brand New Plan]]", where he points out that, despite things having not gone as he planned, it'll work out perfectly for him and makes up a new plan on the fly.

[[folder: Officer X]]

An animal control officer who has made repeated, failed attempts to capture the penguins while they're out on the town. After getting thwarted by the penguins in one episode, he loses his job and reappeared later on as an exterminator and so on. Voiced by Cedric Yarbrough.
* BadassBeard: [[spoiler:Before it was ripped out by tape thanks to the penguins]]. It grew back though.
* BaldOfEvil: Tries to capture the penguins and is bald.
* BrokenAce: Was mentioned by his former boss in animal control that he was best officer on their staff until he went crazy obsessing over the penguins who ruined his life.
* CassandraTruth: Officer X constantly tried to tell others that the penguins were responsible for multiple acts of destruction and mayhem, but was decried as a laughingstock and lunatic and fired from job after job. When the penguins antics were revealed worldwide in a news story, he was absolutely elated, but soon broke down into tears and sobbing when the story was mocked as a news hoax.
* CharlesAtlasSuperpower: He's tougher, stronger, and more agile than any other human shown and has taken down the penguins and dangerous animals like Joey the Kangaroo with ease.
* {{Cloudcuckoolander}}: Most people think he this cause lets face it, when you hear you keep losing to Penguins, it doesn't send the image of a sane person.
* CombatPragmatist: Uses Kowalski as a boomerang to hit Rico and Private in "A Kipper for Skipper".
* CoolCar: His animal control van features a laser, claws and a winch. He also gets angry when it gets destroyed in "What Goes Around".
-->'''Officer X''': I loved THAT VAN!
* CoolShades: He wears them all the time.
* DeadpanSnarker: He fires off a salvo of puns in "The Officer X Factor."
* ImplacableMan: He will never stop chasing after his prey. Even Mason the Chimpanzee admitted that Officer was "not human" after pelting him with animal feces because he wouldn't stop no matter how much he threw at him.
* LeitMotif: Officer X has his own, instantly recognisable theme.
* NewJobAsThePlotDemands: Because of the penguins, of course!
* NoNameGiven:
-->'''Alice''': X, eh? Is that the name your ''mommy'' gave you?\\
'''Agent X''': Mother never told me my real name. Said it was [[ClassifiedInformation classified]].
* PungeonMaster: Easily notified by the penguins are his plentiful one-liner puns. Can even be a HurricaneOfPuns.
* RealMenWearPink: His exterminator uniform is pink.
* ScaryBlackMan: He's visibly of African-American descent and he's evil.
* ScarilyCompetentTracker: Once he decides to track down his prey, literally nothing will stop him. He even managed to cage and restrain Marlene's savage persona when it was split from her by one of Kowalski's experiments.
* ShockAndAwe: Wields a shock stick.
* TheCuckoolanderWasRight: Despite being clearly obsessed with the penguins and ridiculed by the public as a loon, he's the only human shown fully aware of and posing a threat the the penguins' schemes and plans. Because of this, he was capable of constantly out-thinking the penguins, and anticipating their plans when hired as their zookeeper.
* TheNoseKnows: He can immediately sense the presence of the penguins by smell regardless if they are hiding.
* TheWorfEffect: Pulls one on Rico and one on Joey.
* YouShallNotPass: Parodied in "What Goes Around".
-->'''Officer X''': Delinquent penguins! In the name of the Metropolitan Department of Animal Control and Pretzel Cart Regulation, You Shall Not Pass!

[[folder: Rat King]]

A large, muscular sewer rat with a heavy East-Side accent and a tendency to say "Dude!" and "Awesome!" a lot, who often antagonizes the penguins. Voiced by Creator/DiedrichBader.
* DumbMuscle: A muscle-bound rat who isn't smart.
* GullibleLemmings: In "Rat Fink", he blindly follows what he believes to be the true rat king, despite the PaperThinDisguise. He only becomes confused when the invasion plan is put into action.
* HustlingTheMark: See ObfuscatingStupidity.
* {{Mook}}s: The other sewer rats who follow him.
* NoHoldsBarredBeatdown: Inflicts this on Skipper in "Crown Fools".
* ObfuscatingStupidity: He and the rats pretend not to know the rules of ice hockey before the penguins challenge him to a game. It turns out they were hustling the penguins, and the rats curb-stomp them.
* RatKing: He's not a literal "rat king" (which are several rats stuck together by their tail), but rather a gigantic, muscle-bound rat.
* RecurringCharacter: So far, he's appeared in a total of eight episodes.
* RodentsOfUnusualSize: Exaggerated; he's ''taller than the penguins''. This is because he's a genetically modified lab rat.
** LargeAndInCharge: Duh. He's "The Rat King" for a reason. He's very tall.
* TheWorfEffect: He seems to exist only for the Penguins to have moments of awesome against him. He also inflicted this on Skipper in "Crown Fools".
* YouDirtyRat: An evil rat.

[[folder: Hans]]

A puffin who has a dark history with Skipper. Whatever happened in Denmark is between Skipper, him and the Danes.
* AffablyEvil: His first episode revolves around him trying to make peace with [[spoiler: Skipper, but it turns out to be an act.]]
* EvenBadMenLoveTheirMamas: Played with in the ep Smotherly Love.
* MySisterIsOffLimits: Attempted to [[InvokedTrope Invoke]] this, [[EpicFail but]]:
--->'''Hans''': --And I kissed your ''sister''! On the ''lips!''\\
'''Skipper''': I don't ''have'' a sister. And if I did, she wouldn't have lips.\\
'''Hans''': ...Oh. Then who ''did'' I kiss?
* DubNameChange: To "Lars" in the German dub. This is probably due to the pronunciation of Hans being a lot shorter in German than it is in English (the ''a'' is much longer in English). Lars is about the same length as the English Hans and looks similar in lip movement.
* NationalAnimalStereotypes: A Danish puffin.
* ShamuFu: He always (ray guns and [[ItMakesSenseInContext "capuccino gun"]] do not count) wants to fight using a fish, but he is terrible in "fish flynning"
* ThirdPersonPerson: Sometimes he starts to talk like this:
--->'''Hans''': --[[WeWillMeetAgain Hans will return again!]]\\
--->'''Hans''': --What will be now with Hans the puffin?\\

[[folder: Clemson]]
A lemur who was mailed from Hoboken Zoo to Central Park and back.
* SycophanticServant: [[spoiler: He comes off like this at first towards Julien, but it turns out to be a rather non-fatal version of...]]
** [[spoiler:TheStarscream]]
* ThinkingOutLoud: Does this so often even he thinks it's weird.

[[folder: Savio]]

A boa constrictor who was temporarily transferred from Hoboken Zoo to Central Park.
* DashingHispanic: Has a strong Spanish accent, and always acts charming and witty even when he's gloating about taking his revenge on his enemies by swallowing them one by one, regurgitating them and then swallowing them in reverse order.
* DeadpanSnarker: Savio, being FauxAffablyEvil rarely snarks, but he is capable of delivering biting comments.
-->'''Skipper:''' My, my, my. Someone looks ... plump!
-->'''Savio:''' As do you. But do I make wild accusations?
* DiabolicalMastermind: His intellect could possibly rival Dr. Blowhole's, since in each appearance he always managed to find ways to outsmart the penguins and take down previous threats. Not only did he figure out how to unlock the locks in his habitat in his first appearance, but the next episode "All Tied Up With A Boa", he took down the zookeepers at his enclosure, swam the Hudson River all the way towards the Central Park Zoo presumably on memory alone, got Burt the elephant (who beat him up in the first episode) out of the way by mailing [[EekAMouse him a mouse]], evaded every single trap devised by the penguins, and overpowered them by using said traps to incapacitate them along with Marla, Maurice and Mort (who were also armed). He would have won if it weren't for Julien and a bucket of old popcorn butter.
* DisproportionateRetribution: {{Lampshade}}d by Marline when they learn Savio has escaped from Hoboken Zoo to take revenge on the animals for sending him there, even though most of them were just his victims.
* TheDreaded: News of his escape in "All Tied Up In The Boa" sent the penguins (with the exception of Skipper) into {{Troubled Fetal Position}}s, even Rico who is the {{Axe Crazy}} of the group.
* FauxAffablyEvil: Savio always speaks in an impeccably polite manner (aside from the occasional bit of snark) and rarely raises his voice, even when he gloats in detail about his plan for revenge.
* HurricaneOfPuns: Always makes constant food related puns when he's about to eat someone. {{Lampshade}}d by Savio himself, when Julien makes fun of one his lamer ones.
* GratuitousSpanish: He drops in some Spanish during 'The Terror Of Madagascar', saying: "Yo quiero ese appetizer!"
* KnightOfCerebus: Episodes in which he is involved are generally more serious.
* MetronomicManMashing: Well, 'Snake Mashing', to be correct, but he is subjected to this at the end of 'The Big Squeeze at the hands of Burt.
* NationalAnimalStereotypes: A boa constrictor with a Hispanic accent.
* PickyEater: Has a predilection towards mammals. However he had no trouble eating Private disguised as a mammal.
* RoaringRampageofRevenge: Goes on a truly epic one against the penguins when he escapes from the Hoboken Zoo. A herpetologist on the breaking news of Savio's escape even goes to state that his breed has a biological insatiable desire for vengeance, nursing a grudge for months before wreaking hideous retribution.
* SnakesAreSinister: Very deceptive and sly.
* VillainousBreakdown: In "The Terror of Madagascar", Savio gets a taste of his own medicine when the baby fossa he was planning to eat uses him as a chew toy, forcing him to flea in terror screaming in fear and pain all the while.
* VillainousGlutton: Savio's most consistent trait is his desire to eat, either out of hunger or revenge.
* VileVillainSaccharineShow: Perhaps more so than Dr. Blowhole, given that the penguins were never able to defeat him by themselves and many of the zoo inhabitants being (understandably) scared stiff of him.
* TheWorfEffect: Possibly the only villain the penguins were never able to defeat on their own. They only managed to gain an edge on him with the help of Burt the elephant, Julien, popcorn butter, and a baby fossa. {{Lampshade}}d by the penguins in "The Terror of Madagascar".

[[folder: The Red Squirrel]]
An evil squirrel who longs to TakeOverTheWorld, but is experiencing problems getting any evil plans off the ground, mostly because he lacks {{Mooks}}.
* ArchEnemy: To Buck Rotgut and Uncle Nigel.
* CardCarryingVillain: Is ''very'' up front about how evil he is. In "Nuts to You," he flat out says he wants the jackpot acorns "for [his] own evil purposes."
* DiabolicalMastermind: Tries to be this but can't quite cut it, due to a combination of crippling overconfidence (his FatalFlaw) and WrongGenreSavvy.
* EvilOldFolks: He is very old, having been out of retirement for over forty years, but he's still quite spry.
* {{Expy}}: Of the Red Skull.
* EyepatchOfPower: Concealing the button he uses to launch his missile.
* FantasticRacism: He despises penguins more than almost anyone.
* GratuitousRussian: Says things like "Do svidaniya!" and so forth.
* HairTriggerTemper: He gets mad ''very'' easily. Often it seems like the slightest thing will set him off.
* {{Mooks}}: He has none and frequently laments the lack of them. But sometimes he forgets this, and shouts orders to henchmen who don't actually exist before remembering he's alone.
* InSeriesNickname: "Red." Begun by Rotgut and sometimes appropriated by the other penguins.
* SurroundedByIdiots: He doesn't think highly of his fellow squirrels, least of all Fred.
* VillainousBreakdown: When his "ally" Julien sells all of their acorns (intended to pay for {{Mooks}}) to buy not just magic beans, but magic ''jellybeans''.
* WhatTheHellIsThatAccent: He has a vague "European bad guy" sounding accent, despite the GratuitousRussian.
* WrongGenreSavvy: He seems to think he's in a far more serious action thriller, but he exists in an illogical cartoon universe, and so everything he tries is doomed to failure because he approaches all his plans as if his enemies were from the same spy movie 'verse he thinks he's in, dooming himself to failure and rendering his towering intellect effectively meaningless.

[[folder: Jiggles]]
A gelatinous Green Cube creation of Kowalski that nearly destroyed the world. Twice. Kowalski's attachment to Jiggles proves endlessly frustrating to Skipper.
* AttackOfTheFiftyFootWhatever: Eating fruit made it grow larger each time. While it never gets exceedingly massive, it does get larger than Kowalski is able to handle.
* BlobMonster: Well he's more like sentient gello than a blob but he does fit it.
* DubNameChange: "Flubbi" in the German dub.
* TrademarkFavouriteFood: Eats fruit in its first appearance, and Kowalski modifies it to eat whipped cream instead later.

[[folder: Blue Hen]]
Incredibly intelligent chicken from Delaware and Kowalski's rival, voiced by Audrey Wasilewski.
* DeadpanSnarker: [[LampshadeHanging Lampshaded]] by Private.
* DistractedByTheSexy: She was defeated because Kowalski was able to distract her with a suggestive song and dance. It happened again in P.E.L.T, but only for few seconds.
* InsufferableGenius: Blue Hen is really proud of her genius IQ and she never misses the chance to shove it in somebody's face.
* {{Seers}}: According to gorrilas, she is able to predict the future. [[spoiler: Subverted, she just has REALLY strong strategical thinking and is good at figuring out what will happen thanks to her knowledge of physics and psychology.]]
* VillainousCrush: Kowalski WAS able to [[DistractedByTheSexy distract her by singing and dancing for her]], she silently giggled when he slapped his butt, complimented his dancing and KISSED HIM and in P.E.L.T, she straight up laid an egg and stared at him for few seconds when he tried to do it again.