* CrossDressingVoices:
** Ricken, only in [[Creator/YukiMasuda Japanese]] version.
** [[DudeLooksLikeALady Libra]], in [[Creator/CindyRobinson English]] and Japanese.
** Henry, in only the [[Creator/AkemiOkamura Japanese]] version.
* FakeAmerican: GideonEmery, who voices Gaius, is actually British - for comparison, his other two most famous roles are [[VideoGame/FinalFantasyXII Balthier]] and [[VideoGame/DragonAgeII Fenris]], and for those, he keeps his natural accent.
* FanNickname: [[FanNickname/FireEmblemAwakening So many it got its own page]].
* FranchiseKiller: It would've been this if the game sold fewer than a quarter million units. (More in a retroactive sense; the game was expected to be the final game in the series and was developed as such.) Thankfully, this was was averted, as it became one of the best selling titles in the franchise, and was a commercial and critical success in Japan and the West.
* IKnewIt: When [[spoiler:Male Morgan]] was confirmed as the boss of the [[spoiler:first Future Past DLC Chapter]], some fans theorized that [[spoiler:Female Morgan]] would be the boss of the [[spoiler:second chapter]]. They were right. Even less people were surprised that the [[spoiler:third and final Future Past DLC Chapter]]'s boss turned out to be [[spoiler:Grima]].
** There were also a surprisingly large number of people who guessed, before the game was released, that [[spoiler: [[SamusIsAGirl "Marth" was actually a girl.]]]]
** Many also called [[spoiler: the Avatar being connected to Grima.]]
** With regards to localizations, just about ''everyone'' called "[[FireEmblemJugdral Thor Hammer]]" [[TranslationCorrection becoming]] "[[Myth/NorseMythology Mjölnir]]"
* {{Jossed}}: It has been theorised that Lon'qu, the swordsman who CannotTalkToWomen, would extend his awkwardness around them to [[spoiler: his own prospect daughters from the future, should he marry a first generation character who gives birth to a girl]]. The Future Past DLC josses this: [[spoiler: if he marries Tharja and then he goes rescue the alternate universe!Noire, AU!Noire bluntly mentions his aversion to women, and Lon'qu's reply is basically "why would I be scared ''of my own daughter''?". Granted, conversations with other potential daughters suggest that while he is unafraid of being near his daughter, he ''was'' afraid that he ''might'']].
* KillerApp: It was reported in the UK that the bundle of ''Awakening'' and a limited edition 3DS XL made up about 30% of all 3DS XL sales the week it was released, and helped boost sales of the system ''50%'' compared to the previous weeks.
* ManOfAThousandVoices: In the Japanese version, [[Creator/MiyukiSawashiro the same lady]] does ''all'' the female Avatar voice options (which range from mature LadyOfWar to TokenMiniMoe) as well as [[CrossdressingVoices one of the male ones.]]
* MarthDebutedInSmashBros: Thanks to the [=SpotPass=] optional battles and paid DLC, HEAPS of of characters from [=FE2=], 3/12, 4, 5, and 6 are appearing in English for the first time ever in this game. Marth himself averts this, having previously appeared in ''Shadow Dragon''.
* NewbieBoom: The game got more marketing in the West than previous titles, giving it much better mainstream exposure than its predecessors. It went on to become the best selling ''VideoGame/FireEmblem'' of all time, which in turn drew in many new players to the fandom. Robin and Lucina's inclusion as playable characters in ''[[VideoGame/SuperSmashBros Super Smash Bros for 3DS and Wii U]]'' a few years later sparked another small surge of new fans due to the ''Smash'''s series popularity.
* NoDubForYou: While the various European localizations are very creative and heavily [[{{Woolseyism}} Woolseyized]], only English and Japanese voiceovers exist for the game, unlike ''[[VideoGame/FireEmblemTellius Radiant Dawn]]''[='s=] multiple European voices. However, all Western versions of the game contain both voice tracks, unlike with previous ''Fire Emblem'' games.
* OneOfUs: If his {{Twitter}} is anything to go by, Creator/KaijiTang, the English voice actor for Owain, is an avid player of the game himself.
* PigeonholedVoiceActor: Creator/YuriLowenthal voicing a KidHero, Creator/BrycePapenbrook voicing an [[{{Keet}} energetic, creepily cheerful]] KidHero, StephanieSheh voicing a [[{{Yandere}} bipolar]] character, Creator/KateHiggins voicing a {{Tomboy}}; and TaraPlatt voicing stern, serious mage, and a LadyOfWar, SamRiegel as a RidiculouslyAverageGuy BadassNormal villager, Creator/RichardEpcar voicing a [[EvilIsHammy hammy villain]].
* PlayingAgainstType: Creator/SpikeSpencer as a [[SissyVillain Sissy]] SmugSnake [[DudeLooksLikeALady that looks like a lady]], Creator/LiamOBrien voicing a ''heroic'' ChivalrousPervert, and StephanieSheh playing a confident, training-loving knight.
* RealitySubtext: It's possible to pair Miriel and Ricken. Their voice actors, TaraPlatt and Creator/YuriLowenthal, are married in Real Life. Doubles as HilariousInHindsight, as the two were a fairly popular pairing even before their English voice actors were announced.
** [[SubvertedTrope Subverted]] with [[spoiler:Lucina]] and Lon'qu, though. Even though their voice actors (Creator/LauraBailey and Creator/TravisWillingham, respectively) are married in real life, they can't be paired up themselves because [[spoiler: the only character who can marry across generations is [[PlayerCharacter the Avatar]].]]
** [[DoubleSubversion Double subverted]] in that Creator/TravisWillingham also voices Brady, who ''can'' marry [[spoiler: Lucina if he's not her brother.]]
* RelationshipVoiceActor: If you recruit [[spoiler: Walhart and Priam]], then [[spoiler: Creator/RichardEpcar and Creator/JamiesonPrice]] once again voice [[VideoGame/DynastyWarriors super strong warriors]] [[OneManArmy capable of wiping out hundreds of soldiers]] in the same army. Though their characters never interact, [[spoiler:except for their Hot Spring Scramble conversations,]] their roles kind of intersect, too, since [[spoiler: Walhart and Dong Zhuo are both [[EvilOverlord evil overlords]], and Priam and Lu Bu are [[BloodKnight fight-happy]] killing machines.]]
* SerendipityWritesThePlot: Why Morgan [[spoiler:has amnesia]], as, depending on [[spoiler:whether the Avatar marries a first or second generation unit]], Morgan would have wildly different backgrounds and would require numerous script changes to their Supports. [[spoiler:Amnesia]] easily circumvents this problem.
* TalkingToHimself: Insofar as VoiceGrunting allows, given doubling up among both casts. Especially notable though with the mother-daughter pairs Sumia and Cynthia and Cordelia and Severa in the respective dubs (Ayano Yamamoto and Creator/JulieAnnTaylor respectively). Also Donnel and Stahl share the same English [[Creator/SamRiegel actor]].
** Some of the fathers and sons can end up talking to themselves if you pair the mothers up appropriately: Lon'qu and Brady, Kellam and Gerome, Gregor and Laurent, or Yarne and Robin (if the right voice option is picked on Robin).
* WhatCouldHaveBeen:
** Early trailers indicate Sumia was planned to have Cavalier as a reclass option.
** In earlier trailers, Garrick (the Barbarian boss of the prologue) was named Grendel, but this was changed for unknown reasons.
** [[http://img1.wikia.nocookie.net/__cb20130119152540/fireemblem/images/b/bc/Tiamo1.jpg Certain concept art]] suggests Cordelia early on was planned to have blue hair.
** Several unused sprites for characters exist showing that Sully, Stahl, Lon'qu, Olivia, and Say'ri were able to promote into the Hero class at some point. Since all of those characters can become Myrmidons, this implies that the Hero used to be the promoted form of the Myrmidon.
** Another sprite shows [[http://fireemblemwiki.org/w/images/5/5a/FE13_cut-in_maskless_Gerome.png a critical hit animation for an unmasked Gerome]], which indicates that he was to remove his mask during combat at some point.
** A critical/skill portrait was discovered for Phila was well; unfortunately, though, [[spoiler: she's killed off before she has a chance to use it]].
** The game's files list the names Andrea, Leopold, Bella, and Tracie among the game's characters. Although their names are all that is left of them in the game, these were apparently characters of some kind that were DummiedOut.
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