* HeyItsThatVoice: Virtually ''everyone'' playable in this game!
** [[RieTanaka Neptune/Purple Heart]] is [[GundamSeed Lacus Clyne]] and [[RozenMaiden Suigintou]].
*** [[MelissaFahn English Neptune/Purple Heart]] is [[DigimonTamers Rika Nonaka]]… or a [[GhostInTheShell Tachikoma]].
** [[AsamiImai Noire/Black Heart]] is [[VideoGame/BlazBlue Tsubaki Yayoi/Izayoi]] and [[VideoGame/TheIdolMaster Chihaya Kisaragi]].
*** [[ErinFitzgerald English Noire/Black Heart]] is [[Manga/RanmaOneHalf Kodachi Kuno]] and [[VideoGame/{{Skullgirls}} Parasoul]].
** [[RinaSato Vert/Green Heart]] is [[VisualNovel/UminekoNoNakuKoroNi Ange Ushiromiya]] and [[{{Minami-ke}} Haruka Minami]]. Also a RelationshipVoiceActor to the seiyuu below.
*** [[TaraPlatt English Vert/Green Heart]] is [[VideoGame/{{Persona 3}} Mitsuru Kirijo]] and [[VisualNovel/FateStayNight Caster]].
** [[KanaAsumi Blanc/White Heart]] is [[AmagamiSS Miya Tachibana]] and [[{{Working}} Popura Taneshima]].
*** [[Creator/WendeeLee English Blanc/White Heart]] is [[DeadOrAlive Lisa Hamilton/La Mariposa]]… [[ManOfAThousandVoices and a lot of other people]].
** [[KaoriMizuhashi Nippon Ichi]] is [[VideoGame/{{Disgaea}} Laharl]] and [[NipponIchi Asagi]]. Seems to be a RunningGag [[ActorAllusion with the seiyuu, seeing as she has voiced a lot of Nippon Ichi characters.]]
*** [[MichelleRuff Nisa]] is [[StreetFighterIV Crimson]] [[MarvelVsCapcom3 Viper]], [[VideoGame/{{Disgaea}} Etna]], and [[VideoGame/{{BlazBlue}} Carl Clover]]. Makes sense, since she too has voiced a lot of Nippon Ichi characters.
** [[KanaUeda IF]] is [[VisualNovel/FateStayNight Rin Tohsaka]] and [[VideoGame/BlazBlue Rachel Alucard]].
*** [[KateHiggins English IF]] is [[Manga/{{Naruto}} Sakura Haruno]], [[Anime/CodeGeass C.C.]], [[DeadOrAlive Tina Armstrong]], and [[SoulSeries Natsu]].
** [[NatsukoKuwatani Gust]] is [[RozenMaiden Suiseiseki]] and [[LightNovel/HaruhiSuzumiya Ryouko Asakura]].
*** [[CassandraLee English Gust]] is [[{{K-ON}} Ritsu Tainaka]], [[Anime/PuellaMagiMadokaMagica Kyubey]], and [[DeadOrAlive Lei-Fang]].
** [[KanakoSakai Compa]] [[CaptainObvious (short for Compile Heart)]] is [[VideoGame/ArTonelico Shurelia]] and [[{{REC}} Aka Onda]].
*** [[CristinaValenzuela English Compa]] is [[VideoGame/BlazBlue Noel Vermilion/Mu-12, Nu-13, Lambda-11]], [[spoiler:[[VideoGame/BlazBlue Saya]]]], [[{{Skullgirls}} Cerebella]], and [[Anime/PuellaMagiMadokaMagica Homura Akemi]].
** [[MikaKanai Histoire]] is [[Anime/AfterWarGundamX Tiffa Adil]] and [[Anime/CodeGeass Kaguya]].
*** [[StephanieSheh English Histoire]] is [[Manga/{{Naruto}} Hinata Hyuga]] and [[LightNovel/HaruhiSuzumiya Mikuru Asahina]].
** [[ChiakiTakahashi Magiquone]] [[ActingForTwo and Magic The Hard]] are [[VideoGame/BlazBlue Litchi Faye-Ling]] and [[KimiGaNozomuEien Mizuki]].
*** Arfoire and English Magic are [[LeagueOfLegends Ahri]] and [[VideoGame/{{Skullgirls}} Valentine]].
** [[KanaeIto Red]] is [[ShugoChara Amu Hinamori]] and [[MayoiNekoOverrun Fumino Serizawa]].
** 5pb is the one who sings the opening themes of the series.
*** [[MelaLee English 5pb]] is… ''also'' [[VisualNovel/FateStayNight Rin Tohsaka]] and [[VideoGame/BlazBlue Rachel Alucard]].
* mk2 adds the following to the list:
** [[Creator/YuiHorie Nepgear]] is [[Manga/LoveHina Naru Narusegawa]] and [[VideoGame/{{Persona4}} Chie Satonaka]].
*** [[ChristineMarieCabanos English Nepgear]] is [[Anime/PuellaMagiMadokaMagica Madoka Kaname]] and [[{{KON}} Azusa Nakano]].
** [[EriKitamura Uni]] is [[Anime/PuellaMagiMadokaMagica Sayaka Miki]] and [[VideoGame/StreetFighterIV Juri Han]].
*** [[SarahWilliams English Uni]] is [[Anime/PuellaMagiMadokaMagica Sayaka Miki]] [[RelationshipVoiceActor too]] and [[VideoGame/{{Skullgirls}} Peacock]].
** Rom is [[DotHackQuantum Hermit]] and [[LightNovel/{{Campione}} Athena]].
** Ram is [[AriaTheScarletAmmo Reki]] and [[KaichouWaMaidSama Suzuna Ayuzawa]].
*** [[ShelbyLindley English Ram]] is [[KOn Mugi Kotobuki]] and [[MagicalGirlLyricalNanohaAs Shamal]].
** [[YukoSanpei Kei Jinguji]] is [[EurekaSeven Renton Thurston]] and [[SeikonNoQwaser Sasha]].
** Chika Hakozaki is [[FreshPrettyCure Setsuna Higashi/Cure Passion]] and [[Anime/PantyAndStockingWithGarterbelt Scanty]].
*** English Chika is [[{{K-ON}} Jun Suzuki]] and [[MagicalGirlLyricalNanoha Momoko Takamachi]].
** [[AkemiKanda Falcom]] is [[MahouSenseiNegima Asuna Kagurazaka]] and [[LightNovel/{{Baccano}} Czeslaw Meyer]].
*** [[XantheHuynh English Falcom]] is [[{{K-ON}} Ui Hirasawa]] and [[LightNovel/ZeroNoTsukaima Siesta]].
** [[KenjiroTsuda Judge The Hard]] is [[Anime/YuGiOh Seto Kaiba]] and [[Manga/KatekyoHitmanReborn Adult Lambo]].
*** [[KyleHebert English Judge]] is [[Anime/TengenToppaGurrenLagann Kamina]], [[VideoGame/StreetFighter Ryu]], and [[TekkenBloodVengeance Kazuya Mishima]].
** [[KentaroIto Brave The Hard]] is [[Manga/{{Bleach}} Renji Abarai]] and [[{{Demonbane}} Kurou Daijuuji]].
*** [[DavidVincent English Brave]] is [[Manga/{{Bleach}} Grimmjow Jeagerjaques]], [[BlazBlue Jin Kisaragi, Hakumen]], [[DeadOrAlive Eliot]], [[VideoGame/TalesOfGraces Richard]], and [[{{Tekken}} Marshall and Forest Law]].
** [[YojiUeda Trick The Hard]] is [[Manga/{{Basilisk}} Saemon Kisaragi]] and [[KotetsushinJeeg Senjirou Shiba]].
*** [[DerekStephenPrince English Trick]] is [[LoveHina Keitaro Urashima]] and [[VideoGame/{{Persona3}} Takaya]].
** [[JunkoMinagawa Linda]] is [[Anime/CodeGeass Cornelia Li Brittania]] and [[{{Catherine}} Erica Anderson]]. [[spoiler: She's also Trisha and Astaroth in that game, but we'll let you figure out why]].
** Warechu is [[Manga/KatekyoHitmanReborn Reborn himself.]]
** [[LaurenLanda English Cave]] is [[VideoGame/BlazBlue Litchi Faye-Ling]], [[Anime/PuellaMagiMadokaMagica Kyouko Sakura]], [[SoulSeries Yan Leixia]], and [[DeadOrAlive Kasumi]].
* And Neptunia V adds a few more:
** [[KanaHanazawa Pururut/Iris Heart]] is [[LightNovel/{{Bakemonogatari}} Nadeko Sengoku]] and [[LightNovel/{{Durarara}} Anri]].
*** [[CheramiLeigh Plutia]] is [[ShakuganNoShana Shana]] and [[Manga/FairyTail Lucy Heartfilia]].
** [[KiyoyukiYanada Akudaijin]] is [[VideoGame/MarvelVSCapcom3 Mike Haggar]], [[SlamDunk Takenori Akagi]], and [[VirtuaFighter Taka-Arashi]]. Him voicing an evil Member of Parliament is nothing new, as he has also been [[{{EngineSentaiGo-onger}} Yogostein and Yogoshimacritein]].
*** [[KeithSilverstein Mister Badd]] is [[StreetFighterXTekken Bryan Fury]], [[SoulSeries Zasalamel]], and [[DeadOrAlive Zack]].
** [[PatrickSeitz Copypaste]] is [[BlazBlue Ragna the Bloodedge]], [[{{Tekken}} Bob Richards]], [[SoulSeries Cervantes de Leon]], [[DeadOrAlive Bass Armstrong]], [[EurekaSeven Charles Beams]], [[EternalSonata Frederic Chopin]], [[{{Bleach}} Isshin Kurosaki, Sentaro Kotsubaki, Kenpachi Zaraki]], [[SengokuBasara Chosokabe Motochika]], [[Persona4Arena the Malevolent Entity]], [[VideoGame/StarcraftII Artanis]], [[{{Berserk}} Pippin]], [[AxisPowersHetalia Germany]], [[{{Castlevania}} Dracula]], and [[MortalKombat Scorpion]].
** [[SandyFox English Peashy]] is [[{{Disgaea}} Flonne]] and [[PhantomBrave Marona]].
* MarthDebutedInSmashBros: As ''SteinsGate'' wasn't released in North America until after this game, [[spoiler: Kurisu Makise, Mayuri Shiina, and Itaru Hashida]] ALL made their North American debut in this game as 5pb's Skills.
* OneOfUs: Katsuhiro Harada, the video game producer of the ''VideoGame/{{Tekken}}'' series likes Noire. And pretty much one of the main reasons why we even get Tekken in ''VideoGame/HyperdimensionNeptuniaV'' (they couldn't get the Namco name so they had to settle for this).
* RelationshipVoiceActor: [[StephanieSheh Financier]] as [[Creator/WendeeLee White Heart's]] assistant in the first game.
** The English dub of ''mk2'' has at least six [=VAs=] who have worked on KOn and ''seven'' who have worked on ''Anime/PuellaMagiMadokaMagica''.
* ShoutOut: [[ShoutOut/{{Neptunia}} Now has its own page.]]