* BannedEpisode: "Hot Springs Planet Tenrei" never saw the light of day on America's Creator/{{Toonami}} block due to its excessive nudity and sexually suggestive content. Not even Creator/AdultSwim aired it during the show's short run there (though they simply re-aired the Toonami edits rather than making their own version). Over in the UK, the cartoon channel CNX attempted to air the episode, but a lot of cuts had to be made to pass the censors. This edit was too short and too messy to watch, so it was shelved. While most anime episodes with excessive fanservice that get banned from television are filler, "Hot Springs Planet Tenrei" was different. This episode actually was vital to the overarching plotline. The [=DVD=]s and online are the only places you can see this episode as it was originally (both in Japanese and English).
* DubInducedPlothole: If you only watched the TV broadcast, you might be wondering where Gene got those rare Caster shells. For the answer, see above (and seek out the DVD).
* HeyItsThatVoice:
** In the English dub:
*** Aisha is [[WesternAnimation/XMen Rogue]].
*** Hilda is [[Anime/GhostInTheShellStandAloneComplex the Major]] and [[Anime/CowboyBebop Julia]] (Spike's long-lost girlfriend who took him in after Vicious attacked him, as seen in "Ballad of Fallen Angels").
*** Jim Hawking is [[Anime/SerialExperimentsLain Taro]] and [[LightNovel/HaruhiSuzumiya Kunikida]].
*** Twilight Suzuka is [[Anime/CowboyBebop Faye Valentine]] and [[LightNovel/HaruhiSuzumiya Haruhi]].
*** [[Anime/CowboyBebop Jet]] decided to moonlight as the narrator in between bounty-hunting missions.
*** Ron [=MacDougal=] is (one of the many voices of) [[Anime/TheCastleOfCagliostro Jigen]].
** In the Japanese dub:
*** [[Creator/YukoMiyamura Aisha Clan-Clan]] is [[Anime/NeonGenesisEvangelion Asuka Langley Sohryu]].
*** [[Creator/SayuriYamauchi Twilight Suzuka]] is [[Anime/MobileSuitGundamWing Lady]] [[Anime/MobileSuitGundamWingEndlessWaltz Une]].
*** [[Creator/ToshihikoSeki Fred Luo]] is [[Manga/{{Trigun}} Legato]], [[Anime/MobileSuitGundamWing Duo]] [[Anime/MobileSuitGundamWingEndlessWaltz Maxwell]], and [[Anime/MobileSuitGundamSeed Rau Le Creuset]].
* KeepCirculatingTheTapes: Now {{Averted|Trope}}. Along with every other Bandai-licensed show, the rights to Outlaw Star fell into limbo when the company went belly-up in 2011. It took some time, but eventually this show, along with a few other Creator/{{Sunrise}} shows, found a new home at Creator/{{Funimation}}.
* [[HeAlsoDid She Also Did]]: Chiaki Morosawa (the head writer of ''Anime/MobileSuitGundamSeed'' and ''Anime/MobileSuitGundamSeedDestiny'') wrote episode 9: "A Journey of Adventure! Huh?"

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