* ActorAllusion: Gai's actor, Junya Ikeda, stated in his blog that when he was a child he wanted to be the [[Series/GoseiSentaiDairanger Kiba Ranger]]. In episode 19, the first thing Gai does when he is allowed to summon Ranger Keys is to summon the Kiba Ranger key.
** In episode 29, when Ahim dons a schoolgirl disguise, she says she's from Saitama and needs directions. Her actress, Yui Koike, is actually from Saitama, herself.
** Creator/JojiNakata, who played the MonsterOfTheWeek Zaien in the ''Liveman'' tribute episode (#30), was the same actor who played the lead antagonist in that series (Professor Bias). [[spoiler: Both were also responsible for turning a former friend to the enemy - Kenji, Rui, and Goh for the Liveman and Sid for Joe, though they were done in different ways.]]
* FanNickname: "Tabasco Sauce" for Basco.
* HeyItsThatGuy: [[Series/ChouSeiKantaiSazerX Gaku Shindou]] (Eagle Sazer) as Barizorg ([[spoiler:and just like Creator/RomiPark as Usuyuki/Dayu in ''Series/SamuraiSentaiShinkenger'', he's appears in ep. 11 as Barizorg's original form, Sid Bamick.]])
** Yui Koike (Ahim) hasn't grown that much in the half-a-year after she last appeared in the finale of ''Series/KamenRiderDouble''.
** You can catch [[KamenRiderFourze Tatsugami Kou aka Leo Zodiarts]] as one off the two {{Yakuza}} types chasing Luka in #27.
** And speaking of Double, Luka's old friend in #34 (Yuki Kimisawa) must have loved Futo, as he's more familiar as Kirihiko/Nasca Dopant.
** For the obvious ones, see [[ContinuityCameo Continuity Cameo]].
* HeyItsThatVoice: ''Gokaiger'' has an all star voice cast.
** Creator/TomokazuSeki (in full-on hammy [[Anime/MobileFighterGGundam Domon]] mode) as the narrator and voice of the Gokaiger's devices, so you know that the Gokaigers fight [[MemeticMutation WITH THE HELP OF KYOJI!!!]]
** Creator/YukariTamura as Navi
** Creator/HirofumiNojima as Warz Gill
** KoujiIshii as Damaras. We do wonder who is Damaras' [[Manga/AzumangaDaioh Waifu]].
** Creator/KikukoInoue as Insaan. You thought [[MacrossFrontier Grace O'Connor]] is dead. She's back, but under the Zangyack.
** Episode 8, Creator/NobuyukiHiyama as Sneak Brother Younger and Creator/ShigeruChiba as Sneak Brother Elder.
** For the ''199 Heroes'' movie? Creator/AkiraKamiya returns from 'retirement' to voice [[Series/HimitsuSentaiGoranger Black Cross Fuhrer]].
** Creator/ToruFuruya returns to voice Aka Red from the Boukenger Anniversary team up.
** Creator/TakahiroSakurai as Jealoushitto in episodes 14 and 24. [[Anime/CodeGeass Suzaku]] is full of '''''[[LargeHam BURNING JEALOUSY POWER!!]]'''''
** [[color:red:Sandaaru Jr., he is [[Creator/ShuichiIkeda A CHAR]]]].
*** [[MythologyGag As was ]][[Series/NinpuuSentaiHurricaneger his dad.]]
** Bringing the ''Manga/OnePiece'' references full-circle, Machalcon is [[HiroakiHirata Sanji]].
** Ninjaman is voiced once again by Creator/KazukiYao. [[Anime/MobileSuitGundamZZ Gokaiger is not an anime!]]
*** Ninjaman is also [[Manga/OnePiece Franky!]] [[CatchPhrase SUPER!!]]
** TWO of the singing ghosts in ''The Flying Ghost Ship'' are MitsukoHorie and IsaoSasaki!
* MoneyDearBoy: Luka's raison d'etre.
* NamesTheSame: The RobotBuddy parrot is named Navi. [[VideoGame/TheLegendOfZeldaOcarinaOfTime Yeah.]] At least one fansub caught onto this, translating its first words to 'HEY! LISTEN!'
** Same goes for the [[MonsterOfTheWeek Action Commander of the Week]] in #9, who is called Bowser. But [[Franchise/SuperMarioBros the guy we know by that name]] is called Koopa in Japan, so...
** A similar case happens for the Action Commander in #32, who goes by [[Franchise/{{Pokemon}} Shieldon]]. Again, his cross-media counterpart has a different name in Japan.
** Gai Ikari shares his given name with ''Series/ChoujinSentaiJetman'''s Black Condor, Gai Yuuki, although different kanji are used to render their names. Unfortunately, they didn't get to meet in #28.
** Then there's Jou Ohara of ''Series/ChoujuuSentaiLiveman'' and Joe Gibken, which gets a LampshadeHanging this time (mainly because #31 is mostly centered around them).
* PromotedFanboy: Junya Ikeda, Gai's actor, [[http://forums.henshinjustice.com/showpost.php?p=1367490&postcount=395 is a lifelong Sentai fan]]. Also Gai himself, in fact his [[GenreSavvy knowledge of Super Sentai]] is his useful skill!
* PropRecycling: Naturally, though most of them have to be remade entirely and some costumes have been altered, as mentioned under MiniDressOfPower.
** A special cross-franchise case is with Damaras' sword in #42, which looks to be a redeco'd Medaljalibur from ''Series/KamenRiderOOO''.
** The Sneak Brothers monster costume from #8 gets recycled in ''Gokaiger vs. Gavan'', albeit as a GenderFlip.
* RealitySubtext: Ryota Ozawa, who plays Marvelous, is best friends with Yasuhisa Furuhara, who played Sosuke.
* ShootTheMoney: The reason that you never see more than three Sgormin on-screen at the same time is that Toei literally only has three Sgormin suits.
** This may also be the case with the [[LawOfChromaticSuperiority Dogormin (read: red Sgormin)]] since only two of them appear each time. Thanks to a WhipPan between split-screens, we see four Dogormin on screen in #49, two over each shoulder when they come to offer backup to Insarn.
** May also be the reason Ahim was [[Series/ChoushinseiFlashman Green Flash]]. Toei may've known that they were gonna get Dai back but no pink rangers and made the suit for the All-Green change in #43, killing two birds with one stone (It's assumed most of the gender changed suits just add a piece of fabric for a skirt for male to female. However, some of the teams couldn't be done like that, like Flashman, so Toei probably had to be judicious about when to gender change those suits.)
*** If you pay attention, you'll notice that there were a few gender-switched costumes that showed up over and over. Green Flash is one, but female version of Magi Red and Ginga Red showed up too.
* TroubledProduction: Reportedly, two of the head writers nearly came to blows over Gai Yuki of ''Series/ChoujinSentaiJetman'' in the Great Legend War - one of them, an original writer for ''Jetman'', didn't want him to return, but the other was insistent he did.
** There were also rumors that [=GokaiGreen=] was going to have to be recast or otherwise replaced after his actor Kazuki Shimizu was injured when they were filming near where the early 2011 earthquake struck (thankfully, this was just a rumor.)
*** To be fair, the earthquake did just fine messing up production on it's own, causing 199 Heroes to be postponed from 5/21 to 6/11. The series was only postponed a week (earthquake occurred before the Dekaranger tribute). That not getting into the fact that the earthquake would be on everyone's minds and they likely had their own worries about it.
* WhatCouldHaveBeen: For once, admitted by the filmmakers themselves, in regards to the 199 Sentai movie ([[http://orendsrange.blogspot.com/2011/06/199-great-hero-battle-movie-synopsis.html taken from the translated pamphlet given out during the film and posted on someone's webpage; warning, this page also contains a spoilery synopsis of the film]])
** Dead characters from previous seasons were apparently [[BackFromtheDead brought back to life]] to fight in the legend war. Who brought them back isn't clear. Apparently Rio and Mele being killed in the series and then revived to fight Long in ''Go-on vs Geki'' is mentioned in the pamphlet as something that happened, so this adds a bit more evidence that Gokaiger incorporates everything as [[ContinuityNod "canon."]]
** If MachikoSoga [[AuthorExistenceFailure were still alive,]] they would have brought her back to reprise a role as a villain in the movie. She played villains in ''Super Sentai'', most notably Queen Hedrian from ''[[Series/DenshiSentaiDenziman Denziman]]'' and Witch Bandora from ''[[Series/KyoryuSentaiZyuranger Zyuranger]]''.
** There was a massive battle that happened prior to what we saw in the Legend War where over 100 robots/giants fought against the Zangyack fleet. Many of the robots were destroyed or killed during this battle. This was also mentioned in an interview with the Director, Takemoto and was posted on 2ch long before the pamphlet came out. The only hint towards this in the actual movie is a brief shot of a destroyed Gosei Great during the opening battle.
** The lead writer's [[http://www.jefusion.com/2011/09/don-dogoiers-backstory-revealed.html initial plans]] for Don's backstory would have been that he was an orphan whose scientist father was killed by the Zangyack. He ultimately left the character backstory-less once he realized he preferred characterizing him as a RidiculouslyAverageGuy. The only remnant of this scrapped story that did make it in a sort of way is that Don's homeworld did get blown up by the Zangyack. It gets only a passing mention when he talks about [[spoiler:being able to restore his homeworld with the Greatest Treasure of the Universe in #49]]. And, aside from the whole thing [[spoiler:he fabricated]] about being an amnesiac dragon-slayer, not much is said of his backstory except for the details on how he joined the crew.
** Early info for ''Gokaiger vs. Gavan'' said that [[spoiler:Warz Gil]] would appear in the Makuu Castle prison scene, but this turned out to be false, presumably because it would be a PlotHole for [[spoiler:Zangyack's own prince]] to be there.
** Yutaka Kobayashi, who we now know as [[Series/KamenRiderGaim Kamen Rider Baron]], almost won the part of Captain Marvelous but [[http://henshinjustice.com/2013/10/27/kamen-rider-baron-the-banana-who-split-on-gokaiger/ had to drop out for another job]].
* WordOfGod: As stated by Koichi Sakamoto, the episodes he directed (namely 5 and 6) have ''Franchise/PowerRangers'' references.
** In episode 5, when the four Gokaigers become Go-ongers, Gokai Yellow used the wheel designed armbands of the Go-onger suit as a weapon, which is exclusively used in ''Series/PowerRangersRPM''.
** The entire scene when Elder is discovered in #8 pretty much homages a similar scene in "Handshake", even substituting billiards for baseball.
** Most of the time, when the Magiranger powers are used, Ahim will use Vida's 'big pink tornado of windy doom' technique rather than Houka's 'turn into something small and cutesy' technique, though it could be Ahim simply having a different personality from Houka.