History Trivia / TheCaseStudyOfVanitas

* CreatorsOddball: ADR director Creator/DavidWald1973 is much more known for dubbing anime with a CastFullOfGay.

* TheWikiRule: [[https://mochijun.fandom.com/wiki/Jun_Mochizuki_Wiki Has one]] shared with Mochizuki's other works including ''Manga/PandoraHearts'' (another one of her works adapted into anime).

* CastingGag: In the English dub, Chloé and Jean-Jacques are voiced by Creator/BrinaPalencia and Creator/JMichaelTatum which is a nod to their roles in ''Manga/BlackButler'' which the former plays the master and the latter plays the servant in a 19th century setting.

** In the dub, Dr. Moreau is voiced by Creator/ScottGibbs, who typically plays characters who are easy-going (such as [[Anime/WaitingInTheSummer Tetsuro Ishigaki]] and [[Manga/FoodWars Satoshi Isshiki]]) or [[JerkWithAHeartOfGold jerks that can be kind underneath it all]] (such as [[Manga/{{Haikyuu}} Tobio Kageyama]]). Moreau is not either.

** In the dub, Dr. Moreau is voiced by Creator/ScottGibbs, who typically plays characters who are easy-going (such as [[Anime/WaitingInTheSummer Tetsuro Ishigaki]] and [[Manga/FoodWars Satoshi Isshiki]]) or JerkWithAHeartOfGold. Moreau is not either.

* PlayingAgainstType: Both Natsuki Hanae and Kaito Ishikawa ending up voicing characters that usually had an archetype voiced by the other instead. With Kaito as Noé who is an {{Adorkable}} NiceGuy, while Hanae voice Vanitas who is a JerkWithAHeartOfGold.

* RelationshipVoiceActor:
** For the anime, Creator/NatsukiHanae and Creator/KaitoIshikawa voice the two main leads, and also worked together on ''Anime/TokyoGhoul: re'' as Kaneki Ken and Kuki Urie respectively. They both also voiced the two main leads of ''LightNovel/HeavyObject''.
** Both of them (Hanae and Ishikawa) are also in Manga/{{Haikyuu}} as Hoshiumi and Kageyama. Other characters are also present there:
*** [[Creator/AyumuMurase Astolfo]] is Hinata.
*** [[Creator/TomoakiMaeno Olivier]] is Shimada.
*** [[Creator/KaoriNazuka Naenia]] is Shimizu.

*** [[Creator/TomoakiMaeno Olivier]] is Shimada.

*** Both of them are also in Manga/{{Haikyuu}} as Hoshiumi and Kageyama. Other characters are also present there:

*** Creator/AyumuMurase Astolfo is Hinata.
*** Creator/TomoakiMaeno Olivier is Shimada.

*** Both of them are also in Manga/{{Haikyuu}} as Hoshiumi and Kageyama.

** Both of them are also in Manga/{{Haikyuu}} as Hoshiumi and Kageyama.

* RelationshipVoiceActor: For the anime, Creator/NatsukiHanae and Creator/KaitoIshikawa voice the two main leads, and also worked together on ''Anime/TokyoGhoul: re'' as Kaneki Ken and Kuki Urie respectively. They both also voiced the two main leads of ''LightNovel/HeavyObject''.

* PlayingAgainstType: Both Natsuki Hanae and Kaito Ishikawa ending up voicing characters that usually had an archetype voiced by the other instead. With Kaito as Noé who is an Adorkable NiceGuy, while Hanae voice Vanitas who is a JerkWithAHeartOfGold.

* PlayingAgainstType: Both Natsuki Hanae and Kaito Ishikawa ending up voicing characters that usually had an archetype voiced by the others instead. With Kaito as Noé who is an Adorkable NiceGuy, while Hanae voice Vanitas who is a JerkWithAHeartOfGold.

* RelationshipVoiceActor: For the anime, Creator/NatsukiHanae and Creator/KaitoIshikawa voice the two main leads, and also worked together on Tokyo Ghoul:re as Kaneki Ken and Kuki Urie respectively. They both also voiced the two main leads of LightNovel/HeavyObject.

* CrossDressingVoice: Louis is voiced by Creator/MiyukiShimabukuro.

* RelationshipVoiceActor: For the anime, Natuski Hanae and Kaito Ishikawa voice the two main leads, and also worked together on Tokyo Ghoul:re as Kaneki Ken and Kuki Urie respectively.