Compare/contrast the [[{{Characters/SgtFrog}} Character Sheet for the source anime]].

'''Warning''': Unmarked spoilers ahead for Season 1 and 2.


[[folder:Keroro Platoon]]

!!Sergeant Keroro

In the Abridged series, Keroro is a useless, self-absorbed JerkAss who can't accomplish anything (big shocker, right?). He occasionally makes an effort to come up with an invasion plan, but sadly his plans wouldn't make sense to a two-year old. Has a fear of being useful, is in a relationship with subordinate Tamama, and is apparently [[GratuitousSpanish Hispanic]]. The entire series revolves around his friends and peers wanting to kill him because they hate him so much. Voiced by Mugiwara Yoshi.
* AmbiguouslyGay: Averted in the early episodes. As soon as he makes a pass at Tamama when the character is introduced, he outright says "I'm gay! The end!". Also inverted, because he seems to have an attraction to women but won't come forward about it like he will his attraction to Tamama. Subverted by Episode 11, where he comes to grips with his sexuality and [[BiTheWay decides he is Bi]]. Doesn't stop his relationship with Tamama from getting any worse.
* GratuitousSpanish: Due to his voice actor being Dominican.
* JerkAss: [[UpToEleven Funimation couldn't make Keroro]] [[ExaggeratedTrope this awful a person]].
* LovableSexManiac
* IdiotHero
* MikeNelsonDestroyerOfWorlds: Despite being an invader by (failed) profession, his only real successful destruction of life was an accident.
* TheNeidermeyer: His platoon might hate him even more than the [[Manga/SgtFrog original series' counterparts]].
* PoliticallyIncorrectHero: PlayedWith, depending on the situation.
* TheProtagonist: He's the lead character and goes through development throughout the series, though it doesn't always make him ''better''.
* SmallNameBigEgo: Whereas his original series counterpart is at least a celebrity on Keron, ''everyone'' hates this Keroro, yet his ego is still enormous.
* UnsympatheticComedyProtagonist

!!Private Tamama

Tamama is Keroro's adorable boyfriend, until he is revealed to be a "she" at the end of Season 1. Tends to act stupid like the rest of the platoon, but occasionally exhibits rational thought. Voiced by [=ThornBrain=].
* AmbiguouslyGay: Averted in the first season, where one of her nicknames before her gender reveal is "fagmuffin". Becomes subverted when he ends up being straight only because he is a "she".
* AmbiguousGender: Both in and out-of-universe. Even Tamama herself didn't know she was a girl.
* TheChick
* CloudCuckoolander
* TheDitz
* StaticCharacter: Despite showing moments of HiddenDepths throughout the series, Tamama never changes much beyond her CloudCuckoolander characterization. Writer Travis admits that he would like to develop Tamama's character more beyond this. Her appearances in ''Podcast/AskGiroDoroSFA'' made the effort to emphasize her sarcastic side and her tenuous relationship with Keroro.
* UnsettlingGenderReveal: Tamama turns out to be female, much to the surprise of everyone, including herself. This sent Keroro into 'straight panic' in episode 11.
* NotAllowedToGrowUp: WordOfGod says Tamama is the [[OlderThanTheyLook Keronian age-equivalent of a 20-year old]], except she has Keronian dwarfism.

!!Corporal Giroro

Giroro is Keroro and Dororo's lifelong friend, though he is less than pleased with Keroro's failures and would like their platoon to successfully invade Earth. Had a transparent crush on Natsumi until getting together with and eventually marrying Dororo, and is a transvestite. After the wedding, Giroro no longer wants to invade Earth, and instead just wants to live a peaceful life. Voiced by [=ThornBrain=].
* CanNotSpitItOut: Averted. He outright says he loves Natsumi in Episode 5; nobody seems to notice or care, not even Natsumi.
* CatchPhrase: "Fuck this!"
* CrossDresser
** DisguisedInDrag: Doesn't even try, but he pretends to be famous singer Sumomo in Episode 6. Leads to his crossdresser reveal.
** {{Bishonen}}: Perhaps according to him.
-->"At least I'm PRETTY!"
* DeadpanSnarker
* EvenTheGuysWantHim: Keroro wasn't against the idea, and Dororo made a pass at him after his transvestism came to light. The latter eventually got him.
* HappilyMarried: He and Dororo as of Episode 15.
* JerkWithAHeartOfGold: He acted sweet towards Natsumi and developed his friendship with Dororo much more than with any of the others. By the end of Season 2 he clearly cares about his friends and protecting them.
* TheLancer
* StraightMan: To the rest of his platoon. Usually.
* SuddenlySexuality: His transvestism comes out of nowhere. Though, [[Manga/SgtFrog considering the series SFA is based on]], it's not much of a surprise.
* SurroundedByIdiots: Though he's not immune to the IdiotBall himself.
* [[{{Deuteragonist}} Tritagonist]]: His character development is more subtle than Keroro's and Dororo's, but he is nearly as much the focus as them.
* WeaksauceWeakness: Colouring. As in "crayon-on-paper".

!!Lance Corporal Dororo

After being stranded in the forest with a broken leg, the lonely, depressed, mentally damaged, socially awkward, unpopular rich kid Dororo became a ninja. He appears to have a form of Stockholm Syndrome in relation to Keroro and Giroro, but his only true friends may indeed by Giroro and Koyuki; nobody else seems to care about him. By Season 2, heaps of CharacterDevelopment has led him to not take Keroro's crap so much anymore and settle into a happy relationship with Giroro. Voiced by [=ThornBrain=].

* {{BFS}}: His Giant Ninja Fuck-You Star, which he had to meditate for two episodes to learn how to use. The first two times he uses it [[EpicFail fail catastrophically]]. The third time, while he's in a combat high, works like a charm.
* BreakoutCharacter: Even Yoshi didn't care about him until they finally introduced him. He almost immediately became a fan and creator favourite, and he was voted Travis, Yoshi and Thorn's favourite and best-developed character at the end of the second season.
* BritishAccents: Has a slight British tint to mirror his posh upbringing [[OohMeAccentsSlipping and to differentiate him from Thorn's other voices]].
* ButtMonkey: His role as forgotten ButtMonkey in [[Manga/KeroroGunsou the original]] is replaced with that of a directly/emotionally-abused punching bag.
* CatchPhrase: "I'm lonely" and "(X) makes me lonely". Doesn't speak it directly much after Season 1, though it has been [[ContinuityNod referenced in places]].
* CloudCuckoolander: Perhaps downright mentally disturbed.
* CountryMatters: Uses the c-word in his character song "The Lonely Dance".
* {{Deuteragonist}}: Develops the most out of all the cast, and is nearly as much the focus as Keroro.
* HappilyMarried: He and Giroro as of Episode 15.
* HilariouslyAbusiveChildhood: And like any good AbridgedSeries, it's taken UpToEleven and beyond.
* [[IllGirl Ill Boy]]: Taken to a ridiculous extreme come Episode 11. According to Pururu, Dororo has every virus, germ, parasite, cancer, and other diseases in his body, some of which are female-exclusive. They're all dormant, completely benign, and non-contagious. Of course, come the next few episodes, it's pretty clear they're not fully dormant or non-contagious, but they also [[MadeOfExplodium don't function like normal diseases]].
* MaliciousMisnaming: The longest running gag of the series. Characters often switch his name with something starting with D (Doorknob, Dorito) or something completely random (Laryngitis, Hangnail).
* MommasBoy: Suggested in flashback episodes of Season 1 but subverted in Episode 10, where he reveals resentment towards his mother. He is very uneasy about seeing her again in Episode 19.
* ObliviousToLove: Koyuki sees him as a good friend, but for the most part he seems oblivious and just wants his platoon to be his friends (which he actually ''did'' accomplish with Giroro; [[TheyDo then they kept going]]).
* StraightGay: ''Podcast/AskGiroDoroSFA'' confirms him as the only conclusively gay character.
* StraightMan: Late-Season 2 onward.
* WorthyOpponent: Pururu sets him up as being indestructible, and Zoruru challenges him to a fight to prove it wrong. In his own weird way, Dororo proves himself to be this.

!!Sergeant Major Kululu

The biggest personality reversal from the original ''Keroro Gunsou''. Kululu isn't the transparently scheming, constantly-giggling TokenEvilTeammate like his counterpart, but is rather an understated, keeps-to-himself, sarcastic, apathetic JerkAss. Voiced by [=InfamousGentleman=].

* CloudCuckoolander: And aware of it.
* JerkAss
* StartOfDarkness: Discussed in Episode 12, as the team are in fear of him turning into Future Kululu. Ultimately averted, as he turns out to be pretty mellow about the team.
* TokenEvilTeammate: Subverted. Throughout the first season he's about as blatant as his [[Manga/SgtFrog main series counterpart]]. However it was mostly his future doppelganger. The real Kululu returns at the beginning of Season 2, and he mellows out considerably.
* {{Troll}}: He once trolled a leading economic power and the leaders of the world ''at once'', and he collapsed all of Uganda with porn.
* UnEvilLaugh: Has switched out to the much less menacing, much more nasally "HEGH!"

!!Angol Mois

Mois is a sweet alien girl with a big crush on her longtime family friend Keroro. As opposed to the [[Manga/SgtFrog original Mois]], this character accomplished her mission to destroy the world. She now just hangs out with the platoon and doesn't do much of anything. Voiced by codeblackhayate.

* ActionGirl: If only once.
* AffablyEvil: Her only reason to be on Earth is to destroy it.
* TheCutie
* DemotedToExtra: Due to a mixture of her voice actor being busy and the writers just not having a use for her.
* TheDitz: Though not so much stupid as innocent.
* SatelliteCharacter: To Keroro after Episode 5.


!!Fuyuki Hinata

The scatterbrained and fairly stupid brother of Natsumi and son of Aki. Keroro may be his only friend, and by the end of Season 2 he is definitely Keroro's only friend. Voiced by [=ThornBrain=].

* BetaCouple: With Alisa in Episode 13.
* CloudCuckoolander: The most obvious of them, as most of his lines are strange leaps of logic or non-sequiturs.
* TheDitz
* NonSequitur: His default conversation type.
* TookALevelInJerkass: Towards the end of Episode 13, after Mokoma's death by head explosion, he makes several puns at her expense.

!!Natsumi Hinata

The girl of the house who is less than amused by the Keronians, and one of the more capable and sane members of the cast. She is the center of attention at her school by all of the females, and she wishes she could just have a friend instead of an admirer. Voiced by [=LillyLivers=].

* ActionGirl: But not very often.
* DeadpanSnarker
* EvenTheGirlsWantHer: Literally every girl at her school is obsessed with her, even the teachers.
* [[OnlySaneMan Only Sane Woman]]
* SchoolgirlLesbians: Initially subverted with Koyuki, as Natsumi only wants her as a friend because she doesn't have any real friends. Double subverted at the end of Season 2, when Natsumi decides they should go for it.
* SurroundedByIdiots
* [[StraightMan Straight Woman]]

!!Aki Hinata

The mom. She is a manga editor who is so desperate for ideas that she will take anything. Voiced by [=LillyLivers=].

* CloudCuckooLander: Fuyuki gets it from her
* TheTease:
--->'''Keroro''': [[GratuitousSpanish ''(In Spanish)'']] ''I'm the house inspector?''
--->'''Aki''': [[MarshmallowHell ''(Pulls him into her breasts)'']]: "Well you'd better be thorough!"
--->'''Keroro''': "Soy un major yes."

!!Koyuki Azumaya

A cheerful ninja girl with a crush on Natsumi. One of Dororo's few real friends (and Natsumi's for that matter). Voiced by Revy Moonshine (Episode 4-18), Thaichestnuts (Episode 22-present).

* ActionGirl
* CloudCuckoolander
* TheCutie: Emphasized more starting with Episode 10
* [[DoggedNiceGuy Dogged Nice Girl]]: Her to Natsumi in Seasons 1 and 2. Natsumi only wants her as a friend. They finally start a relationship in the Season 2 finale.
* SchoolGirlLesbians: Subverted, as Natsumi has no interest in being anything other than friends. Double Subverted in the Season 2 finale: Natsumi finally says they should go for it.

!!Momoka Nishizawa

Fuyuki's secret admirer with an extreme split personality. Voiced by Dobuchu.

* ContrivedCoincidence: Momoka comes back to life during Robobo's attack in Episode 22. This is only because Paul resurrected her as a tank, while Robobo had everyone else fused with machinery. When Robobo's killed and everyone returns to normal, so does Momoka.
* HairTriggerTemper
* KilledOffForReal: At the end of Episode 13. Subverted in Episode 22 with her return. See also McLeaned in [[Trivia/SgtFrogAbridged the Trivia page]].
** LiterallyShatteredLives: Comes about from Fuyuki accepting Alisa as his girlfriend.
** YourHeadAsplode
** BackFromTheDead: As of Episode 22, Paul managed to bring her back to life...[[ItRunsOnNonsenseoleum as a tank.]] [[ItMakesSenseInContext Luckily everyone else had been turned into machines at the time, so when they turned back, so did she.]]
* SuspiciouslySimilarSubstitute: Parodied with Paul's Puppet Momoka, which he uses after her death to keep people from knowing she's dead so that he can keep his job.
* RevolvingDoorCasting: She was voiced in Episode [=2R=] by [=LillyLivers=] as a backup, following many failed attempts to find and hold down a voice actor for her before she ever debuted. She finally found a stable VA in Dobuchu before her death and later resurrection. This trope is the reason she was removed from most of Season 1 out of spite.
* TakeThat: She makes two silent appearances in Season 1 that mock her due to the trouble the team had finding a voice for her: first in Episode 5 where the intro cuts away from her before she can speak; second in the Episode 9 intro where all of the characters have their eyes censored, except for Momoka who has her entire face blacked out.

!!Paul Moriyama

Momoka's butler and enabler of the impossible. He can do anything without trying, regardless of the laws of physics, though the most he does is cause explosions by moving. Voiced by [=BigTUnit1=].

* {{Expy}}: Paul is the equivalent of the Creator/ChuckNorris meme. His voice is also based on Creator/PatrickStewart's, and Travis gets into the voice by saying "Commander Worf's head looks like a fanny".
* MemeticBadass: Invoked a'la the Creator/ChuckNorris meme.
-->''"Hello, Karate Butler Paul at your service. Would you like a cup of tea? I can brew it with my bare hands. Or maybe you’d rather a slice of cake? I can bake a cake just by looking at it."''
* StuffBlowingUp: His powers mostly manifest in causing things to explode, just by moving his body.
* SuspiciouslySimilarSubstitute: Parodied with Paul's Puppet Momoka, which he uses after her death to keep people from knowing she's dead so that he can keep his job.
* TakeThat: His Puppet Momoka actively mocks Momoka's angry personality.

!!Mutsumi Saburo

Natsumi's secret crush. He has a radio show, despite being mute, or at least unable to say a single word without being interrupted.

* ButtMonkey: Every time he opens his mouth to talk, someone else starts talking. Even Natsumi, the girl with a crush on him, failed to notice him in Episode 1, leaving him sad and crying. His lack of respect is comparable to [[Manga/SgtFrog the original Dororo's]] role.
* CuteMute: He never speaks. This is because he was planned to be voiced by [[TheOtherDarrin DragonFatman]] as a drunk Irishman, and Yoshi and Thorn didn't care for the idea. When Fatman was kicked from the team after Episode 1R, [[RuleOfFunny Thorn and Yoshi decided to simply leave Saburo without a voice]].
* HeWhoMustNotBeHeard: He's tried talking, but he keeps getting interrupted, even on his own radio show.
* NewPowersAsThePlotDemands: His magic pen was never addressed in the series, and he doesn't speak so he can't explain anything. Thus comes Episode 17 when he rescues the Hinatas with a drawing of a shield, and Episode 20 when he suddenly gains explosive powers and [[MakesJustAsMuchSenseInContext incendiary spray paint]].
* SuddenlyVoiced: [[spoiler:Albeit briefly, by fellow voice-based running gag [=MrFailGame=] in the series finale.]]

[[folder:Other Recurring Characters]]


Writer [=ThornBrain=] occasionally acts as the disembodied voice that details the setting of a scene and makes sarcastic remarks. His role as narrator is considerably smaller than the Manga/SgtFrog counterpart, and he rarely shows up after Season 1.

* AuthorAvatar: The ''Podcast/AskGiroDoroSFA'' audio blog revealed that it and ''SFA'' reach the real world via transmission from Thorn.
* CrossDresser: Thorn makes a visual appearance as the Narrator at the end of Episode 18. He's wearing lip gloss, a striped top and ([[WordOfGod out-of-shot]]) a tartan skirt.
* DeadpanSnarker
* LemonyNarrator


Viper is a half-snake, half-humanoid space pirate whose TangledFamilyTree serves as a major plot driver for most of the series. His initial appearance in Episode 4 suggests he has a history with the Keroro Platoon, and Episode 7 reveals that he's Dororo's dad; Dororo's multitude of issues can be traced back to Viper. Episode 18 reveals that he is also [[spoiler:Keroro's]] father, and many of his issues can also be traced to Viper. After Season 2, Viper takes the effort to connect with his sons more. Voiced by [=BigTUnit1=].

* HeelFaceTurn: Appears in Episode 4 as a villain and kidnaps Dororo and Koyuki. By Episode 18 he's on friendly terms with the platoon.
* LukeIAmYourFather:
** Averted at first with Dororo. The characters just seem to know Viper's Dororo's father already.
** Subverted after Season 1, as Dororo isn't sure if Viper is his biological father when he grows up. Double subverted by the end of the second season where, despite the father debate never being settled, Dororo is at least well-adjusted enough to not be burdened by the issue any longer. As such, Viper is simply accepted as his father.
** An additional subversion occurs in the Season 2 finale: he is revealed to also be [[spoiler:Keroro's]] father, and both Viper and Dororo know this. However [[spoiler:Keroro]], [[IdiotHero despite laying out all of the hints himself, is too stupid to put all of the pieces together]], so there is never a big reveal [[spoiler:[[Podcast/AskGiroDoroSFA until Keroro appears in the Q&A blog]].]]
* ReallyGetsAround: The list of his children is constantly growing.
* TangledFamilyTree: It seems straightforward at first: Viper, his father, his wife, their sons. But then in Episode 19 we meet his "Mom-Son" and "[[ItMakesSenseInContext Dad-Train]]"...

!!Chief Medic Pururu

A childhood friend of Keroro, Giroro and Dororo with something of a loony streak. Arrives out of nowhere to give the platoon checkups, which is just a cover for her to find out the platoon's weaknesses. Voiced by [=LillyLivers=].

* ADegreeInUseless: WordOfGod says she got her medical degree in the Keron equivalent of Coney Island, which her voice actor [=LillyLivers=] describes as the "most backwards fucking place in the world". Her [[EntertaininglyWrong completely wrong]] diagnoses of the platoon confirm that in-universe.
* UsefulNotes/AmericanAccents: Sports a Brooklyn accent.
* CloudCuckoolander: Most obvious as a kid. She seems fairly focused as an adult, but still has moments where her warped mind is noticeable.
* CuteAndPsycho: Attractive and pleasant; secretly harvesting organs for cash.
* DistaffCounterpart: To Keroro in many ways, including having a casual approach to sex and sexuality, being pretty rubbish at her job, and having her own "Serious Pururu" moment (as in "I'm so serious, even the jokes I tell are serious" Pururu).
* TheDitz: As a child, she doesn't seem aware of her surroundings or make clear conversation.
* HilariouslyAbusiveChildhood
-->"When [[TheAlcoholic my mommy drinks juice]], nobody's happy."
* TheMole: She's really there to learn the platoon's weaknesses and relay them to Garuru.
* StickyFingers: She reveals in her Season 2 finale reappearance that she's been pickpocketing the time-locked populace and shoplifting stores. In the audio blog, Giroro and Dororo reveal that she also stole a ''house''.

!!Solid Snake

The main character of the ''Franchise/MetalGear'' games makes recurring cameos to reference said series. He mostly appeared as a recurring OneLiner gag, but became an actual {{in-universe}} entity in Episode 7. Voiced by [=ThornBrain=].

* AscendedExtra: He was originally just a random gag, but he became an actual character in Episode 7.
* DuelToTheDeath: With Raiden in the Season 2 finale. According to the credits, both lost. They're both back to life in ''Reset''.
* ReferenceOverdosed: To ''Franchise/MetalGear'', specifically the first few ''VideoGame/MetalGearSolid'' games.


The fellow main character of the ''Franchise/MetalGear'' games has also started appearing in Season 2. He does not reference [=MGS=] so much as act like a walking metrosexual Facebook/Twitter feed. Voiced by [=BigTUnit1=].

* TheDitz
* DuelToTheDeath: With Snake in the series finale. According to the credits, both lost. They're both back to life in ''Reset''.
* SmallNameBigEgo: He thinks he rocks. Almost no characters are aware of his presence.


The young Ocelot from ''VideoGame/MetalGearSolid3SnakeEater'' who started appearing in Season 3. He doesn't have a clearly defined character yet. Voiced by Xcaliborg (Episode 19), [=BigTUnit1=] (Episode 22)
* ShoutOut: His line in Episode 22 is a quote from one of Jiggly Jacob's ''Sims 4'' videos.


!!Future Kululu

Kululu's future self. He is apparently the Kululu seen from Episode 6 through Episode 10, and the present-day Kululu [[Series/MysteryScienceTheater3000 is trapped in a box labelled "HAMDINGERS"]] in the meantime. Kululu turns into him at the end of Season 2, then back to normal in ''Reset''. Also voiced by [=InfamousGentleman=].

* TheAntagonist: For the first season.
* BeardOfEvil: Has a pencil mustache, [[ShoutOut as inspired by Ron Mael of]] Music/{{Sparks}}.
* EvilLaughter: He alternates between the "HEGH" laugh and an actual evil cackle.
* KnightTemplar: [[spoiler:He's trying to kill Keroro]] so that the mission to invade Earth actually gets accomplished.


An unnamed Admiral (now a Captain) in the Keron Army with a lethal loathing of the Keroro Platoon. He dumps the platoon on Earth to get rid of them, only to send people and weapons after them to kill them. Generally speaks in a bored monotone. Voiced by Jiggly Jacob.

* TheAntagonist: For all of Seasons 1 and 2, and returns to this spot for Episode 23.
* BadBoss
* BigBad: For all of Seasons 1 and 2.
* DrivenToSuicide: In Episode 16, Kilili hits HQ with all of his stored negative energy, severely depressing him. [[SuicideAsComedy Everyone in the universe commits suicide shortly after]]. The suicide is undone in ''Reset''.
* DullSurprise: His usual speaking voice. You get the sense that he's not crazy about his job.
* {{Jerkass}}: He dumped the platoon on Earth with the implication that he just wanted them out of the way. He never made clear that they still had an invasion mission, and now he's trying to kill them for wasting time doing nothing.
* MustHaveCaffeine: Drinking coffee is part of his job description, but it's not very good coffee. Keroro teaches him how to make good coffee in ''SFA: Reset'', and the next time we see him he's drunk so much of it that he's been awake for four straight months, been demoted from Admiral to Captain, and talks to his empty coffee cups like they're his subordinates.
* TheVoice: Until Episode 22, he's never seen; only heard over intercoms, answering machines, or while having a monologue to a black screen.

!!Lieutenant Garuru

The ridiculously friendly, yet surprisingly dangerous, commanding officer of the Garuru Platoon and the older brother of Giroro. He is under the illusion that Keroro is a military genius when he's really a complete idiot, and thus anything Keroro does is mistaken for a brilliant strategy. He and his platoon are sent to Earth to finish off the Keroro Platoon in the event that the Kiruru from Episode 16 did not kill them all. Voiced by [=BigTUnit1=].

* TheAce
* AffablyEvil: UpToEleven. He's so nice, it drives Giroro insane. [[spoiler:Ultimately subverted: he was overly polite in regards to Giroro because he didn't want to make his brother feel bad about all of his faults.]]
-->[[spoiler:"You have a ''lot'' of them".]]
* ArcVillain
* TheComicallySerious: The one time he says anything remotely silly (E.G. "Well that was wacky"), he's completely deadpan.
* DefeatMeansFriendship: Implied at the end of Episode 18, and WordOfGod states this was the intention.
* DroppedABridgeOnHim: His ship unceremoniously explodes. This is undone in ''Reset''.
* EvilCounterpart: To Giroro, though mostly as a result of ProtagonistCenteredMorality.
* KnightOfCerebus: The mood and dialogue take a much darker turn when he and his platoon arrive.
* LargeHam: Garuru loves the sound of his own voice, which is almost always oozing drama.
* NiceGuy: Or as his brother puts it:
-->'''Giroro''': "Warm-hearted ''bastard''!"
* SoProudOfYou: To Giroro, but mostly for mundane things from years back such as teaching him how to read. He is also aware that Giroro is a failed soldier, but he is convinced that his brother has survived thus far because of whatever skills he learned anyway. ''Reset'' also shows that[[spoiler:, despite his niceness being exaggerated for the sake of Giroro's self esteem,]] his pride in Giroro is completely genuine.
* VillainousBreakdown: He mistakes everything Keroro does as a genius maneuver, causing him to have a few mental battles ''with himself'' over it ([[LogicBomb and lose]]). By the end he finally snaps and just orders his platoon to attack.
* WorthyOpponent: To Giroro. Seems to think Keroro is this when he's really a complete idiot.

!!Lance Corporal Zoruru
The Garuru Platoon's half-cyborg assassin who kills by using a blade hidden in his robotic arm and speaks in a sneering whisper through a speaker. Being the cold-blooded opposite of Dororo, he is convinced that everyone wants to be his friend and that no one will leave him alone. He has heard rumours that Dororo is indestructible and wishes to prove them wrong. Voiced by [=ThornBrain=]

* AxCrazy
* CloudCuckoolander: Is paranoid that everyone wants to be his friend.
* DefeatEqualsFriendship: Played with. He never fights Dororo, but Dororo mistaking him for Robocop is enough to convince Zoruru that ''someone'' out there doesn't know about him. He leaves very happy, and as with Garuru, it is implied that he is on good terms with the Keroro Platoon afterward.
* DroppedABridgeOnHim: His ship unceremoniously explodes. This is undone in ''Reset''.
* EvilCounterpart: To Dororo, even in personality: where Dororo used to feel lonely despite often being with friends, Zoruru is paranoid that people won't leave him alone and all want to befriend him, despite him usually working alone.
* EvilLaugh: Gives a low, quiet one before [[spoiler:killing Saburo]].
* HarmlessVillain: His introduction marks the first aversion of this trope in the series.
* KnightOfCerebus: [[spoiler:He kills Koyuki after his [[PreMortemOneLiner very first line]]. Practically every paranoia-drenched scene after subverts this.]]
* TheLancer: To Garuru.
* NoMouth: Talks through a speaker.
* WorthyOpponent: Wishes to prove that Dororo is not this. In his own weird way, it turns out he was.

!!Private Taruru
The Garuru Platoon's frontline soldier who went to boot camp with Tamama and apparently drove her crazy. Voiced by [=LillyLivers=].

* CheerfulChild: Despite looking physically matured, he is played as a child.
* CloudCuckoolander: Blissfully unaware that Tamama is very much not his "mentor" and was actively trying to kill him to get rid of him.
* CrossdressingVoices: Many were surprised when they found out he was voiced by Lilly, who until then had only voiced girly females such as Natsumi.
* DroppedABridgeOnHim: His ship unceremoniously explodes. This is undone in ''Reset''.
* EyeBeams: His one-time method of attack.
* HarmlessVillain: The only reason he defeated Tamama was because Tamama defeated herself, and she redirects that power properly the next time they meet. The one time he does an attack, he apparently hurts himself.

!!Recruit Tororo
The hyperactive techie of the Garuru Platoon, Kululu's son, and a big fan of ''Mint's Hints''. He spends his time hacking Kululu's system and laughing maniacally for no reason. Voiced by [=BigTUnit1=].

* CloudCuckoolander: Talks to a piece of cheese he calls "Mister Triangle", and he unironically likes ''[[StylisticSuck Mint's Hints]]''.
* DroppedABridgeOnHim: His ship unceremoniously explodes. This is undone in ''Reset''.
* EvilLaugh: A big, maniacal one.
* HarmlessVillain: Kululu defeats him fairly easily.
* TheHyena
* LargeHam
* MadScientist
* PlayfulHacker
* WellDoneSonGuy: Kululu is this to him.

Leader and namesake of the Shurara Corps, and yet another person with a big grudge on Keroro. He has a flair for drama, a very literal mind, and he can be quite mean to his own Corps. Voiced by [=ThornBrain=].

* BadBoss: He abuses and intimidates his subordinates, particularly the meek Nuii, and he reveals he kidnapped most of them.
* BigBad: For Season 3.
* {{Expy}}: His personality takes many cues from ''WesternAnimation/InvaderZim'' and [[VideoGame/{{Borderlands2}} Handsome Jack]].
* HiddenDepths: Genuinely misses [[spoiler:Mekeke]] after he's killed in action.
* {{Jerkass}}
* LargeHam
* LiteralMinded: Stock phrases such as "give them no quarter", "I ''ass''ume you are the one behind this", and "shower me in your reverence" take on different meanings in Shurara's mind.
* {{Revenge}}: All we know about his motivations to kill Keroro is that Keroro did something to him in the past. This is par for the course for ''SFA'' villains.
* SchoolyardBullyAllGrownUp

A meek doll Keronian and the subject of most of Shurara's abuse. Voiced by King Theo (''Reset''-Episode 20), Thaichestnuts (Episode 22-on).

The puppeteer and mind-controller of the Shurara Corps, and Shurara's YesMan. Voiced by Vorhias.

* EvilLaugh: Laughs maniacally and frequently once he is properly introduced.
* KilledOffForReal: [[spoiler:Saburo sets him on fire at the climax of Episode 20. Dokuku reveals in the post-credits that Mekeke did not survive.]]
* MarionetteMaster
* MindControl: He can possess the minds of the people he strings up.
* PeoplePuppets: His method of controlling people is to string them up from above.
* YesMan
-->'''Shurara''': "It gave me goosebumps!"
-->'''Mekeke''': "''My'' goose was thoroughly bumped!"

The mad artist of the Shurara Corps who can bring his art to life. Voiced by Thorn.

* ArtInitiatesLife
* BlackComedy: Buried in the piles of his {{non sequitur}}s are mentions of being molested as a child by his uncle and hating his father. [[spoiler:[[BoomHeadshot His death is darkly comical as well]].]]
* {{Cloudcuckoolander}}: Everything he says is a ridiculous, TotallyRadical NonSequitur sandwich.
* DroppedABridgeOnHim: [[spoiler:Invoked. Thorn decided that the only satisfying way to kill off such a supremely annoying character is to do it as quickly, anti-climatically, and unceremoniously as possible.]]
** BoomHeadshot
** WhyDontYouJustShootHim
* {{Expy}}: His voice and mannerisms are taken directly from Thorn's versions of Davis from ''Tamers Abridged'' and Franchise/SonicTheHedgehog.
* MadArtist
* NonSequitur: Everything he says is this, spoken in a TotallyRadical avalanche.
* TotallyRadical

The Shurara Corps's resident ghost who hates his boss. Voiced by [[ ShazMyBot]] for Episode 20, Jiggly Jacob for Episode 21.

* AnOfferYouCantRefuse: Shurara killed Dokuku and forced him to work for him by making him a ghost and claiming that Dokuku is now bound to him. [[spoiler:Giruru points out that Dokuku couldn't leave Shurara's side if that were the case, and Dokuku promptly leaves.]]
* AntiVillain: He's only after Keroro so that Shurara will finally free him.
* [[StealthPun Dead]][[DeadpanSnarker pan Snarker]]
* OurGhostsAreDifferent: Ours is made of steam and has a scythe for a hand.
* RedRightHand: His scythe arm.
* TakeAThirdOption: His job is to kill Keroro, and it's either do that or return to Shurara. When he finds his brother, Giruru, he instead opts to hide out in the platoon's vaults until Shurara's gone.

A gel Keronian and Dokuku's brother who was locked in the Keroro Platoon's vaults.

* BlobMonster
* NoMouth

A robot Keronian programmed to make friends, kill said friends, and party. He has magnetic powers utilized by his magnet hands, and he can fuse people with nearby machinery. He comes in two forms: a normal Keronian-sized body and a giant mecha. Serves as the villain for Episode 22.

* HumongousMecha: His second form.