* ActorAllusion: [[spoiler:Ribbons Almark]], who shares a voice actor with Amuro Ray, pilots both the [[Anime/MobileSuitGundam RX-78]]-inspired 0 Gundam & the [[Anime/MobileSuitGundam Guncannon]]-inspired Reborns Cannon/Gundam.
** A more subtle reference: in the first ED Setsuna F. Seiei is eating an apple, referring to [[Manga/DeathNote another role]] that both MamoruMiyano and Creator/BradSwaile are famous for.
** Feldt was also a pink-haired girl [[Anime/MobileSuitGundamSEED in a previous life]].
* AnimeFirst: Like the large majority of the franchise.
* CreatorsFavorite: Seiji Mizushima, stated that his favorite character was [[CuteAndPsycho Nena Trinity]], largely because he worked with her CV, RieKugimiya, on ''Manga/FullmetalAlchemist''. Although Nena's role in the series was largely unimportant and her fate was anticlimatic, she was a popular character in the series in Japan. Of course, [[AmericansHateTingle in the West]], to this day it's still a push between [[BaseBreaker people who think she's cool and those who look at her as an evil bitch]].
* CrossDressingVoices: An interesting variation: for the sequence in Season two where Tieria Erde poses as a woman, his voice is provided by... his normal seiyuu, Creator/HiroshiKamiya.
** Actually in the Japanese commentary for that episode, Creator/HiroshiKamiya reveals that another seiyuu called Tanaka-san did the feminine voice for Tieria.
* ExecutiveMeddling
** One of the main reasons for the change in the Gundams’ design from their unusually intricate styling in season one to the more traditionally blocky types in season two was due to Creator/{{Sunrise}} complaining that the former were too difficult to animate.
** Also, director Mizushima stated in an interview that the series was originally supposed to be set in [[Anime/MobileSuitGundam Universal Century]] but Sunrise vetoed it, so the series was rewritten into a new 'verse, hence the similarities: Minovski particles = GN Particles; Newtypes = Innovators; Cyber Newtypes = Innovades, etc...
** ''Gundam 00'' as it was originally conceived wasn’t split into two seasons, with various events supposed to play out quite differently and at a different pace. Then Sunrise split the show into two 25 episode seasons...
* FanNickname: '''''(Warning: unmarked spoilers below!)''''':
** Tieria Erde: "Vowels", for the large number of them in his name. Also "Mantrap", "Titeria", and "T-chan" for his WholesomeCrossdresser stint.
*** In the Japanese and Chinese fandom, he's also known as [[Manga/SayonaraZetsubouSensei ''Zetsubou-sensei'']] due to the share of [[Creator/HiroshiKamiya seiyuus]] and an awful lot of coincidences. Eventually parodied in one of the said show's episode.
** Lockon Stratos: "[[StupidSexyFlanders Stupid Sexy Lockon]]" due to his GAR-ness. Also known as "Rockon", thanks to the {{Engrish}}y habit of switching "L"s and "R"s (which has happened in both ''[[Anime/MobileSuitGundam Gundam 0079]]'' and ''[[Anime/MobileFighterGGundam G Gundam]]'' at the very least). Briefly "[[CaptainHarlock Harlockon]] ", thanks to the EyepatchOfPower.
*** His twin, meanwhile, became known as "Lockoff" (at least by the Japanese and Chinese fandom) as soon as he appeared in episode 9 of the first season, ''long'' before [[spoiler:Lyle actually replaced the deceased Neil as Lockon Stratos]]. Eventually, "[[KamenRider Lockon V2]]"/"Lockon 2.0" became popular, as well, was also nicknamed 'Lecharous Lyle' early on in Season 2 after his playful comments towards a clearly unamused Tieria Erde and stealing Feldt's first kiss (earning him a rather nasty slap for it).
** "[[{{Disney.Aladdin}} Prince Ali]]". For all his MagnificentBastard moments, add up with his Arabic name and it's a rather popular 1001 Nights name for Arabian people... especially princes. And now that it has hit MemeticMutation with all the Aladdin pics with Ali's face "pasted on yay" on them via Photoshop... Repeat after me, ''[[http://www.youtube.com/watch?v=dIj56Rssy-0 ''Prince Ali, Mighty Is He!]]''
*** [[VideoGame/CastlevaniaLordsOfShadow "An unusual hiding place, for a Prince of Darkness... Don't you think?"]]
** The AEU's (alleged) ace Patrick Colasour is affectionately called "Team Patrick", for {{Pokemon}}'s TerribleTrio and their shared habit of being quite soundly defeated and showing up again next episode anyway.
** A more pragmatic example than most, Allelujah/Hallelujah is often shortened to "Al" and "Hal" by fans. Their temporary SplitPersonalityMerge tends to be called "Doublelujah", for obvious reasons.
** Setsuna F. Seiei, because of his past, is sometimes called "Jihad-kun". [="SetLight"=], referring to the fact that both his English ''and'' Japanese voice actors provided their respective versions of Manga/DeathNote's Light Yagami, is also popular. In Japan and China, he's apparently known as "Braindead".
** Ribbons Almark is most commonly referred to as "''Fucking Ribbons''" for his [[MagnificentBastard Magnificent Bastardry]], and "Traitor Ribbons" for his ChronicBackstabbingDisorder (frequently in the form of YouHaveOutlivedYourUsefulness). He is also sometimes called "Bad/Evil Amuro" due sharing a seiyuu (Creator/ToruFuruya) with Amuro Ray, the [[Anime/MobileSuitGundam original Gundam]] protagonist.
** The Japanese love to shorten things, so Graham becomes "Ham" and Alejandro becomes "Doro" (after the Japanese pronunciation).
** Johann Trinity is nicknamed "Captain Hotpants" because of his wardrobe choice and his position as the leader of the Gundam Thrones
** Even ''before'' his alias was revealed, fans were referring to Mr. Bushido as "Bushido Bob", thanks to his obvious {{Samurai}} stylings. His Japanese fan nickname, on the other hand, is [[spoiler:[=HamMask=]]], referencing his previous nickname before donning the mask.
** The red-eyed, one-armed Exia from the start of season two is commonly known as [="TerminExia"=].
** The as-yet-unnamed black leader of the Earth Sphere Federation has been given the unofficial title of ""00bama"", a rather obvious reference to President Barack Obama.
** The Innovators are sometimes referred to as "The Skittles Squad", for their odd hair colours.
*** Which is ironic, because some fans like to refer to [[spoiler:Trans-Am Burst]] as "The Power of Skittles".
** Col. Sergei Smirnov has ''HORDES'' of fanatically devoted Japanese fans who affectionately call him "Kuma-san" (Mr. Bear)[[note]]based on his InSeriesNickname, ''The Wild Bear of Russia''[[/note]]. He gets the much-less-flattering [[MemeticMutation Pedo-Bear]] from his western fanbase, thanks to his "relationship" with Soma. The neutral version of this is "Papa Bear".
** Don't forget Rindt being nicknamed "Swiss Chocolate Man" because of his name...
** The Seraphim Gundam is henceforth christened the "[[TengenToppaGurrenLagann Gundam Lagann]]".
*** And "Shin Musha Flag" is now the nickname for Mr. Bushido’s new mobile suit(s), the Masurao and Susanowo.
** The A-Laws' Captain Goodman is more often than not called "Captain Fat Ass", or alternatively "Captain KFC", for reasons that should be obvious.
** The A-Laws are sometimes called A-LOLS, and less affectionately the A-Holes.
** Throughout both English and Japanese speaking fanbases, Regene Regetta is the butt of many "NEET" jokes due to his supposedly lazy nature; fittingly, the Japanese have dubbed him as "The Royal NEET".
** ChineseGirl Wang Liu Mei is widely known as "China Tits" or, less affectionately, "China Bitch".
** Gundam Throne Drei is also been called "Dreivangelion", for its stunt in episode 15 of the first season.
** And there's also [="SoMarie"=], a portmanteau of Soma and Marie.
** The 00 Gundam is known among fans as "Double Exia".
*** The 00 Raiser is also known as the "Double Bro Raiser" for the friendship its pilots [[spoiler:[[BashBrothers Setsuna F. Seiei and Saji Crossroad]]]] have ("Bro" in Japan can mean... well, [[HoYay beyond platonic love]] for added fun with the fans).
** Marina Ismail is often called "Princess Poverty", and rules over the land of "Povertystan."
** "Trans-[[spoiler:Grah]]Am" - Whether Graham is using the Trans-Am system,
*** lternatively Trans-[=GARHam=], on account of Graham's general hotbloodedness.
*** Being so hilariously obvious and memetic, the name (complete with cross out) was actually in one of the subs when the episode it first appeared in was translated.
*** By extension this also extends to his ultimately full of win quotes in SD Gundam G Generation Wars. where he is VERY notable for the aptly named "God Graham Finger." Also serves as a CrowningMomentOfAwesome.
** "Desu-Yellow" is a derisive one some fans have given Mileina Vashti because they can't stand her.
** Quebeley Mark III - The Regnant due to its shape in Mobile Suit mode.
** GN Particles have almost collectively known by the entire fandom as "GN Pixie Dust", [[http://www.youtube.com/watch?v=UDFetkztTIA both for their appearance and near-magical powers.]]
** The GN Archer is the "Loli GM"
** The Raiser Sword is often called the "[[FinalFantasyVIII Blasting Zone]]", for [[SwordBeam obvious reasons]].
** [[spoiler:The army of Bring and Divine clones]] are known as both the "[[DragonBall Red Ribbons Army]]" and "Bringivines".
** Ribbons' mobile suit (Reborns Gundam) during the finale was actually jokingly called "Ribbons Cannon" by Creator/ToruFuruya, Ribbons' seiyuu. Western fans generally just call it the GN Guncannon, while Asian fans call it GN Guntank.
*** Now also known as "GN Two-Face Hi-Nu Gundam", or just "GN Hi-Nu".
** Same fans call the 00 Raiser "God Raiser" for various reasons.
** "Bad Haro" for the purple, foul-mouthed Haro Nena Trinity kept inside the Throne Drei.
** PowerRangers: The Meisters and their {{Sixth Ranger}}s for wearing [[ColorCodedCharacters colored uniforms]] in the second season.
*** Blue Ranger -- Setsuna F. Seiei
*** Green Ranger -- Lockon Stratos
*** Orange Ranger -- Allelujah Haptism
*** Purple Ranger -- Tieria Erde
*** White Ranger -- [[spoiler:Saji Crossroad]]
*** Red Ranger -- [[spoiler:Soma Peries]] (Despite actually wearing Persimmon)
*** [[spoiler:Graham Aker]] is often added in various fanworks, usually replacing [[spoiler:Soma]] as the Red Ranger. If not, [[spoiler:he's]] usually made as the Black Ranger.
** The Gaga mobile suits were refered to as "baka bombs." Anyone who has seen them in action will quickly understand why.
** "Darth Louise" or "Darth Halevy". Three guesses as to who and why.
** "Badass Haro" - Haros in general, as they play a much more active role (piloting Dynames/Cherudim while Lockon [[CatchPhrase snipes the targets]]) in 00 when compared to previous incarnations.
*** Red Haro became known as "GARO" after it [[spoiler:stows away on 0 Raiser and foils Revive Revival's attempted Gundamjack by [[CrowningMomentOfAwesome bouncing into the control port that it normally occupies and forcing the 0 Raiser to dock with 00 Gundam]]]].
** Billy Katagiri is known as "Billy goat"
*** "Zetsubou Billy", a nickname bestowed on Billy during season two for obvious reasons. The name also comes from the title of the second Death Note ending theme.
** "Golden Toilet Bowl" - a nickname given to the Alvatore, due to its... [[http://images4.wikia.nocookie.net/__cb20110211033643/gundam/images/5/50/Gnma-xcvii.jpg shape...]]
* HeyItsThatVoice: The English dub, done by Creator/TheOceanGroup, uses VA's from several previous Gundam series. As a result, many Gundam 00 characters sound like other well-known characters.
** Aeolia Schenberg's [[MichaelKopsa voice]] sounds like [[Anime/MobileSuitGundam someone who pilots Red Tree Times Faster]].
*** Speaking of Aeolia, WHO would have guessed that [[Creator/ChikaoOhtsuka his japanese voice]] is [[SonicTheHedgehog Doctor Eggman's]]. Though the irony takes a [[DarkerAndEdgier VERY DARK]] turn when you realize he also did [[VideoGame/SonicAdventure2 Doctor Gerald Robotnik]] as well.
** In the original Japanese, it becomes rather difficult to take Tieria Erde seriously once you realize that [[SayonaraZetsubouSensei he tends to mope around in despair quite frequently]]...
** Also in the Japanese version: it is easy enough to miss, but [[TengenToppaGurrenLagann WHO THE HELL DO YOU THINK]] [[Creator/KatsuyukiKonishi JOHANN TRINITY IS]]?
** Lockon Stratos (both) is [[WeissKreuz Kudou Youji]], who shares a similar carefree KnightInSourArmor personality. He also [[SmokingIsCool likes to smoke]] just like Lyle.
** A HilariousInHindsight moment for Mileina Vashti voice talent, Creator/AndreaLibman. Libman currently voices [[WesternAnimation/MyLittlePonyFriendshipIsMagic Pinkie Pie]], who sounds alot like Mileina if she was hyper.
*** Likewise, Creator/CathyWeseluck. The actress who provides the calm and professional Kati Mannequin also voices Spike.
*** Creator/NicoleOliver, the voice of Regene Regetta also goes on to voice Princess Celestia.
** Aside from being [[MamoruMiyano related]] to [[Manga/DeathNote Light]], Setsuna also has the voice of Franchise/UltramanZero. [[HilariousInHindsight This gets especially hilarious]] [[FridgeBrilliance when you match this fact with]] [[Anime/Gundam00AwakeningOfTheTrailblazer Setsuna's fate at the end of the Movie.]]. Another hilarious fact is Creator/HiroshiKamiya who voiced Tieria was also in the Ultraman Zero movie as Zero's comrade Jean-Bird/Jean-Bot. Jean-Bot is a spaceship with a very advance AI and can think and act by itself. Considering how Tieria merge with Veda.... It get even more hilarious now, with the new Ultraman Zero Gaiden having the antagonist, Jean-Killer voiced by Miyu Irino. Perhaps Jean-Killer will perform a HeelFaceTurn and then combine with Zero to become Jean-Zero Riser....
*** Was it mentioned that Setsuna F. Seiei was once [[MyLittlePony a pony]] too? Setsuna's English voice actor Brad Swaile voiced Ace, Starlight's love interest in My Little Pony Tales.
*** Things got even cuter for Miyano. He later voiced the DeadpanSnarker government agent Keigo Tatewaki from the first ''Franchise/{{Jewelpet}}'' series, who is pretty much an epitome of comedy and gags. Fans didn't expect Miyano to use the same personality as the Setsuna depicted in the two gag CD dramas in such a sugary series.
** [[Creator/TabithaStGermain Soma]] is [[Anime/MobileSuitGundamSEED Fllay Allister]]. She is also a [[WesternAnimation/MyLittlePonyFriendshipIsMagic fashion-centric white unicorn pony and an Alicorn with a Royal Canterlot Voice]].
** [[Creator/NicoleBouma Nena]] is [[Anime/MobileSuitGundamSEEDDestiny Meyrin]] if she was extroverted and ''crazy''.
** [[Creator/ChantalStrand Lacus]] is Feldt, reprising her role as the [[Anime/MobileSuitGundamSEED pink-haired girl with Haros]]. Even more surprising that she voiced a [[Franchise/MyLittlePony Tiddly-Wink, Starsong]] and lastly [[WesternAnimation/MyLittlePonyFriendshipIsMagic Diamond Tiara]].
** Christina Sierra is also [[WesternAnimation/MyLittlePonyFriendshipIsMagic Sliver Spoon]]. It's funnier that Sierra is Feldt's friend, and [[RelationshipVoiceActor Sliver Spoon is Diamond Tiara's pal]].
** You'd think [[Creator/RichardIanCox Allelujah]] and [[Creator/KellySheridan Louise]] would get along together after all those years fighting [[Manga/InuYasha Naraku]].
*** Weirdly speaking, Allelujah is also [[WesternAnimation/MyLittlePonyFriendshipIsMagic Snips]] while Louise is [[MyLittlePony Cotton Candy, the old Cheerilee and most notably, Melody]].
** [[SamuelVincent Tieria]] is [[Anime/MobileSuitGundamSeed Athrun Zala]].
** [[Creator/ScottMcNeil Ali]] piloted a different Gundam before [[GrandTheftPrototype pulling off an Anavel Gato]] on the Trinity siblings; [[Anime/MobileSuitGundamWing it was black and had a beam scythe for a main weapon]].
*** He also was [[Anime/MonsterRancher a yellow, one-eyed, one-legged motormouth monster]], a [[DawnOfWar Blood Ravens Force Commander]], and a [[DawnOfWar Chaos Champion]] who hated [[Memes/TabletopGames METAL BAWKSES!]]...
** AND since we're on the topic of Warhammer 40000, [[DawnOfWar Ali]] was defeated on several occasions: ''Twice'' by [[Creator/PaulDobson Graham]] as a Force Commander at Tartarus; ''Twice'' by [[Creator/BrianDobson Devine]] as Kaurava's [[FanNickname/TabletopGames Governor-]]''[[FanNickname/TabletopGames Motherfucking]]''[[FanNickname/TabletopGames -General...]] [[spoiler:despite [[MemeticMutation losing 100 Baneblades.]]]]
*** [[Creator/PaulDobson Graham]] later on [[DawnOfWar became Chapter Master after his predecessor, corrupted by Chaos and nearly ascended to Daemonhood, was killed.]]
** Oh, and before we forget, has [[Creator/TetsuInada Barack Zinnin]] [[VideoGame/SuperRobotWarsOriginalGeneration overridden the Meisters' Leifmotif ye-]] '''''[[OverlyLongGag TROMBE!]]'''''
** If Col. Sergei Smirnov sounds familiar, he was also [[Anime/GundamWing Commander Bonaparte]].
* NamesTheSame: Sadly, the secret to the Gundam's Trans-Am is not the Pontiac Firebird.
* PlayingAgainstType: Numerous seiyuus of past Gundam protagonists voiced antagonists this time around: Bad [[Anime/MobileSuitGundam Amuro]] (Creator/ToruFuruya as Ribbons Almark), Bad [[Anime/MobileSuitGundamZZ Judau]] (Creator/KazukiYao as Aber Rindt), Bad [[Anime/TurnAGundam Loran]] ([[Creator/RomiPark Romi Paku]] as Regene Regetta), Bad [[Anime/MobileSuitGundam0080WarInThePocket Al]] (Creator/DaisukeNamikawa as Michael Trinity), Bad [[Anime/MobileSuitGundamThe08thMSTeam Eledore]] (Creator/KeijiFujiwara as Ali al-Saachez), Bad [[Anime/MobileSuitGundamSEED Sai]] (Tetsu Shiratori as Andrei Smirnov).
** The English dub followed suit: Bad [[Anime/MobileSuitGundamSEED Yzak]] (MichaelAdamtwaite as Ribbons Almark), Bad [[Anime/MobileSuitGundamWing Duo]] (Creator/ScottMcNeil as Ali al-Saachez), Bad [[Anime/MobileSuitGundamSEEDDestiny Meyrin]] (Creator/NicoleBouma as Nena Trinity), Bad [[Anime/MobileSuitGundamSEEDDestiny Lunamaria]] (Creator/MarykeHendrikse as Wang Liu Mei), Bad [[Anime/MobileSuitGundamWing Trowa]] (Creator/KirbyMorrow as Billy Katagiri), and Bad (singing) [[Anime/MobileSuitGundamSEED Lacus]]/[[Anime/MobileSuitGundamSEEDDestiny Meer]] (JillianMichaels as Revive Revival).
*** On the other side of the coin the English version also ''inverts'' the trope, with voice actors of past Gundam antagonists voicing protagonists: Good [[Anime/MobileSuitGundamSEEDDestiny Auel]] (Creator/BradSwaile as Setsuna F. Seiei), Good [[Anime/MobileSuitGundamSEED Shani]] (Creator/RichardIanCox as H/Allelujah Haptism) Good [[Anime/MobileSuitGundamSEED Azrael]] (Creator/AndrewFrancis as Lasse Aeon), and (arguably) Good [[CharsCounterAttack Char]] (MichaelKopsa as Aeolia Schenberg)
** The Filipino dub also plays it straight: Setsuna is voiced by the guy who did [[HajimeNoIppo Ippo Makunochi]], Lockon by the guy who did [[MaiHime Reito Kanzaki]], H/Allelujah by the guy who did [[VisualNovel/{{Clannad}} Youhei Sunohara]], Tieria by the guy who did [[ShakuganNoShana Yuuji Sakai]].
* RelationshipVoiceActor: Many seiyuus from Anime/FullmetalAlchemist, another anime directed by Seiji Mizushima, reunite in ''00''. Namely, the voices of Edward Elric (Regene Regetta), Alphonse Elric (Nena Trinity), Maes Hughes (Ali al-Saachez), Scar (Bring Stability and Divine Nova), Riza Hawkeye (Shirin Bakhtiar), Jean Havoc (Alejandro Corner), Maria Ross (Revive Revival), Kain Fuery (Andrei Smirnov), Zolf Kimblee (Billy Katagiri), and Lt. Yoki (Aner Rindt).
** In ''[[Manga/FullmetalAlchemist Fullmetal Alchemist: Brotherhood]]'', many seiyuus from ''00'' replaced some of the originals, such as Roy Mustang (Lockon Stratos), Zolf Kimblee (H/Allelujah Haptism), Envy (Kati Mannequin), Vato Falman (Patrick Colasour), Barry the Chopper (Ian Vashti), and Greed (Graham Aker). Some of the seiyuus from the original anime that were also in ''00'' returned but voiced different characters, such as Billy Katagiri (the original Zolf Kimblee now Jean Havoc) and Andrei Smirnov (the original Kain Fuery now Gluttony).
** Then there's the KingdomHearts seiyuus: Sora (Saji Crossroad), Riku (Setsuna F. Seiei), Axel (Ali al-Saachez), and Alladin (Lockon Stratos)
** And also from TsubasaChronicle: Saji Crossroad (Syaoran), Michael Trinity (Fai), Captain Barrack Zinnin (Kurogane), Setsuna F. Seiei (Kamui)
** This is also a sort of happy reunion of ''[[Anime/MobileSuitGundamSeed Gundam SEED]]'' and ''[[Anime/MobileSuitGundamSeedDestiny Gundam SEED Destiny]]'' voice actors.
* TalkingToHimself: While the Dylandy twins share the same VA, [[spoiler: it's mainly averted in the anime series due to Lyle only getting a major role after the Neil's death, however]]the live reading in the 2009-2010 New Years Festival has Creator/ShinichiroMiki doing a bit of this.
* WhatCouldHaveBeen: According to WordofGod, ''Gundam 00'' was originally supposed to have been fifty continuous episodes like every past Gundam series and not two separate seasons. The story was planned to span 4 years, with the time skip happening in episode 32. The results of the split season were that the time skip happened after episode 25; the first part of the story ended up being put in the first 31 episodes; and that the Lyle/Anew subplot was added into the story.
** The Gundams originally had more of a [[ChessMotifs Chess Motif]]. Their names have changed, but their roles have remained the same.
*** The Exia was the Pawn Gundam. With short, limited range, it serves its purpose best by charging into the field, annoying and disrupting everything. However, if it ever crosses the chess board, [[MidSeasonUpgrade its potential can become limitless.]]
*** The Dynames was the Bishop Gundam. Although possessing long range, its limited [[IncrediblyLamePun scope]] leaves it vulnerable to any unit that can reach it.
*** The Kyrios was the Knight Gundam. Able to to ignore enemy defenses and attack with impunity, it serves to harass and break up fortifications.
*** The Virtue was the Rook Gundam. With long offensive range and powerful defensive capabilities, it not only is a dangerous unit on its own, but it also the bodyguard unit for...
*** The Queen Gundam, or the Nadleeh. With the ability to reach anywhere and anything it wishes, the Queen can dominate the battlefield. However, she takes some time to deploy, and for all her power, she's not invincible and is a prime target to be captured. Also, note the Nadleeh's distinct feminine design, as well as Tieria's own androgyny.
*** The 0 Gundam was originally meant to be an active command-and-control unit, and thus fulfils the role of the King. By itself, it is extremely weak, but capture or destruction of that unit would lose the entire battle. It also helps that [[BilingualBonus 'Oh' in Japanese means 'King' and well]].
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