* ActorAllusion:
** Jin-e bringing out [[Series/KamenRiderDenO a regular pocketwatch (with ominously loud ticking)]].
** [[Series/KamenRiderDenO This isn't the first time Takeru Satoh held a sword in such intensity, and played a character with multiple personalities]].
* AnachronismStew: The series is actually so true to history that it can only really be nitpicked in a Trivia section.
** In most cases, it could be chalked up to the RuleOfCool (ex. Yukishiro Enishi's battle outfit, which no one at the time could have conceivably worn or made, as well as Inui Banjin's fatigues).
** Takeda Kanryu, the wealthy leader of an opium racket, wears a modern lounge suit with a modern tie that could have conceivably existed in the 1870s, but wouldn't be common in that form for another 70 years. At the time, bowties were still in fashion and suits tended to have more layers. Understandably, the [[Film/RurouniKenshin 2012 film]] drops it and gives him a period-appropriate suit and bowtie.
* BeamMeUpScotty: For fans who read fan fiction, it's an accepted phenomenon that Kaoru's favorite scent is Jasmine (and to a lesser extent, Kenshin is often associated with sandalwood, or something), even though the only character in the ENTIRE series to have a scent associated with them was Tomoe and her plum blossoms.
* CastingGag: Before it was adapted into an animated series, ''Rurouni Kenshin'' was adapted as a series of drama [=CD=]s, with a different cast to that of the anime. The [[Creator/TomoSakurai voice actress]] who played Kaoru in the dramas was later cast in the anime as Kaoru's {{expy}}, Misao Makimachi.
* CowboyBebopAtHisComputer: A frequent victim of this, even in media that focus on anime and manga. Kenshin ''is not and was never a samurai'', as that was a distinct social class one had to be born into. One of the English dubs even gets it wrong with the ''title itself''. A similar problem exists for attribution of the theme "Sobakasu", as "Judy and Mary" was the name of the ''band'', [[IAmNotShazam not anybody in it]]. (The singer is Yuki Isoya, who goes by "YUKI" in all-caps).
* CreatorBacklash: Watsuki has expressed regret at creating Raijuta. He's often cited as saying that Raijuta is his least favorite character.
* CrossDressingVoices:
** Twice for Kenshin in the Japanese original. Creator/MegumiOgata voiced him in the drama CD, while Mayo Suzukaze, a Takarazuka actress, went to voice him in the anime.
** Yahiko is voiced by Creator/MinaTominaga in the Japanese original. In the dubs, it's case by case.
** Soujirou Seta is voiced by Creator/NorikoHidaka in the original.
** Curiously averted in the Colombian Spanish dub, as all the characters are voiced by people of their respective genders, including kids.
* ExecutiveMeddling: [[WordOfGod In his original conception, Kenshin was supposed to be ''at least'' 30.]] But Nobuhiro Watsuki was told that "30 was too old for a primary protagonist in ''Magazine/ShonenJump''." So, Watsuki dropped Kenshin's age to 28. (Thus keeping the concept of a more seasoned protagonist than the typical of the {{Shounen}} genre, but also making Kenshin young enough to be "acceptable".) Lampshaded in series, when Kaoru tells Kenshin he "can't possibly be 28". Kenshin asks "Would 30 make you happier?" Kaoru replies that it would not.
* LyingCreator: Watsuki has admitted (in the sidebars titled "Watsuki is a Liar"), among other things, that "rurouni" is a word he made up.
* NoDubForYou: The Latin American Creator/{{Netflix}} feed does not include the controversial Colombian Spanish dub, partly due to the quality of that dub and partly because the last episode was never dubbed.
* OneHitWonder: The third opening song of the anime, "[[https://www.youtube.com/watch?v=9n6GkQRTgyI Kimi ni Fureru Dake de]]" is the only known hit of Curio.
* TheOtherDarrin:
** Richard Cansino, the voice of Kenshin in the TV series, never got to reprise his role in any of the movies and series of [=OVAs=]. Instead, J. Shannon Weaver plays Kenshin instead. No one knows why.
** The Drama CD cast got replaced once the anime started to be in production. In volume 10, Watsuki mentioned that he was dissapointed about this decision because he liked the performance of many of the voice actors (such as Creator/MegumiOgata and Creator/TomokazuSeki) as his characters, although the anime cast "works out". One reason he cited about the change was that, since the anime production committee was bigger than a Drama CD production team (as it involves more companies and sponsors), the "industry power-structure" affected the series.
* PlayingAgainstType:
** Shishio Makoto is voiced by Masanori Ikeda, an ex-IdolSinger from TheEighties. [[http://www.youtube.com/watch?v=1Eitvlx9Ibw This is his most popular hit, "Night of Summer Side"]]. Compare Ikeda's singing [[http://www.youtube.com/watch?v=Cw85i8Iahew to Shishio's voice]] now. Huh.
** Honjou Katamari is voiced by Creator/JunkoTakeuchi. Yes, by [[Manga/{{Naruto}} Naruto Uzumaki]] and [[Manga/HunterXHunter Gon Freecs]].
** Seta Soujirou is voiced by Creator/NorikoHidaka, whose most famous role at the moment was [[{{Tsundere}} Akane Tendou]] from ''Manga/RanmaOneHalf''.
* PortmanteauSeriesNickname: "[=RuroKen=]".
* RoleEndingMisdemeanor: Or at least a variant of it, involving associated musicians. Music/LArcEnCiel's "Fourth Avenue Cafe" was used as the fourth ending song for four episodes, but when the band's former drummer got busted for drugs, the resulting controversy caused the producers to pull the song and switch back to the third ending for another seven episodes.
* WhatCouldHaveBeen:
** The author originally intended for Usui to be a Franchise/{{Terminator}}-style manhunter, pursuing Kenshin relentlessly through darkened city streets. Instead, we got [[AntiClimaxBoss the]] [[InformedAbility above]].
** Henya was originally going to be introduced as a villainous character during the Kanryu arc; also, he was originally going to be in an aerial battle with Kenshin, but Watsuki changed this because he felt Kenshin would have been too strong an opponent.
** According to Watsuki, Raijuta was originally supposed to ''be'' as imposing as he looked, but VillainDecay gradually set in.
** Senkaku (Shishio's henchman and villain of the Shingetsu village mini arc) originally was going to be a member of the Juppongatana, and a speechless, beast-like brute.
** The manga was originally going to be much shorter than it turned out to be, revolving around the Jinchuu arc.
** It was originally going to be revealed that Hannya had been stepped on in the womb like the Film/TheElephantMan, explaining his featureless death-mask of a face. Watsuki realized the UnfortunateImplications of that idea, and altered the backstory to Hannya having intentionally mutilated his face so that he could easily disguise himself as just about anything.
** There was a pilot chapter in which Megumi (a rather weak-willed woman barely holding the family together), Kaoru (a tomboy {{Tsundere}} serving as the acting dojo-master), and Yahiko (a brat of a kid who feels like he has to be the man of the family since his father died) are siblings.
** There's also a proto-story of Kenshin meeting DamselInDistress Chizuru, who gifts him a ribbon to tie his hair back up when he loses his original ponytail tie in a fight. Chizuru lives on in cameo form at the end of the controversial second OVA, [[spoiler: as the girlfriend of Kenshin and Kaoru's son Kenji]].
** Watsuki mentioned in his notes his concept for a fourth arc of the story which would revolve around Kenji competing against Yahiko and Tsubame's son to inherit the reverse blade. Interestingly, Kenji Himura would most likely been the antagonist of the arc, from what Watsuki had stated about his concept. That, plus the fact that the story would have been set in the beginning of Japan's move towards nationalism and militarization makes one wonder what the story would have looked like...
** Originally, Fuji was going to actually take on Okina in battle. However, the author thought that a battle of old codgers wouldn't have been interesting.
** Kanyru Takeda was going to be homosexual like his historical counterpart, but the author decided that would "unnecessarily complicate things."
* WordOfGod: Watsuki himself has said that the series ended the way it did specifically because it was a shonen series.
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