- Actor Allusion: William Conrad is named after the character from the radio show Gunsmoke. He also bares a striking resemblance to Patrick Stewart.
- Banned in China: To celebrate the anime's 20th anniversary, Fullcock produced a line of water gun replicas of Vash's gun in transparent varieties, and one with silver plastic to look like the real thing. U.S. Customs deemed the silver ones to be too realistic, and the manufacturer banned it from being imported into the United States. Anyone living in the United States who preordered one first party had their orders cancelled and refunded. The transparent varieties can still be imported, however, and the silver variant can be bought from third party sellers.
- Big Name Fan: Professional example. Scriptwriter Yosuke Kuroda was a huge fan of the Trigun manga and, in an unusual move for a series of this length, insisted on writing all 26 episodes himself. Nightow depicted him in the omake to TriMax Vol.2 and he's nearly as insane as Nightow.
- Channel Hop: The manga did this out of necessity. It began publication in Shonen Captain, but the magazine shut down in early 1997, right before the story reached Fifth Moon and Knives's reveal. After finishing the last chapter for the then-final collected volume to give the series some sense of closure (albeit a real Downer Ending), the story lay dormant for over a year before finally being picked up by seinen magazine Young King Ours and continuing as "Maximum".
- Amusingly, it was during this Series Hiatus that JVC came knocking about making an anime. On the plus side, it allowed Nightow to be more involved in early development than a manga-ka would normally be.
- Creator-Preferred Adaptation: Yasuhiro Nightow loved the anime, largely because it was able to distill so neatly the manga's basic messages. He even drew the anime's filler characters into later manga chapters whenever an opportunity presented itself.
- Directed by Cast Member:
- The English dub of the series was directed by Joe Romersa and Lia Sargent, who respectively voiced Descartes and Milly.
- In the Latin American Spanish dub, Francisco Zambrano was the ADR director as well as Capilla Evergreen's voice actor.
- Fan Nickname: Leggie or Leggah for Legato; Bashu (i.e. the Japanese pronunciation) for Vash; Wolfie, Wolf, Nico, Woof, or Nick for Nicholas D. Wolfwood; sometimes Naibuzu (the Japanese pronunciation) or "Several Forks" for Knives.
- Keep Circulating the Tapes: For an unknown reason, volume 3 of the Maximum omnibus edition had very few copies printed. This resulted in said volume being very rare and goes for hundreds of dollars second-hand, to the point of being a grail within the fandom. If you want to read that portion of the manga without paying an exorbitant amount of money, you'll have to go digital or find the older non-omnibus printings.
- Overtook the Manga: An unusual example, as the anime was planned from day one to be 26 episodes, yet still caught up to the manga's story six episodes before the end despite being front-loaded with filler. The result was a defining example of Adaptation Distillation, as the final episodes contained the essential themes Nightow wanted to showcase but just hadn't gotten to yet.
- Portmanteau Series Nickname: "TriMax" for Trigun Maximum.
- Show Accuracy/Toy Accuracy: Kaiyodo released an action figure of Monev in 2002 that proved popular with toy collectors. Only one problem - it only superficially looked like the character. The only bit that was accurate were the arm guns. The suit's color, the face mask and various details were altered and the muscle mass was sufficiently enhanced. It was really artistic license at play, since the rest of the toys were on-model. So why was it so popular regardless? The figure was 10 inches tall and massively articulated, plus it was imported to the US by Diamond, meaning a lot of people who had no familiarity with the series were buying it just because it was far beyond what most action figures of the time were like.
- Then they made another version, this time in clear plastic. Actually, the only Monev toy to even halfway look like the character was the Kubrick block figure.
- The Other Darrin: The only voice actor to return to reprise their role for the movie's English dub was Johnny Yong Bosch as Vash the Stampede. Jeff Nimoy and Dorothy Fahn were both interested in reprising their roles (of Wolfwood and Meryl, respectively), but Funimation replaced them behind their backs mid-negotiation. Lia Sargent was also replaced as Milly, but this was expected as she had retired from voice acting years earlier.
- The story gets crazier. Apparently Bosch, Nimoy, and Fahn originally approached Funimation with the position "You'll take all of us or you'll get none of us". After that, Funimation managed to get Bosch who had worked with them before alone, and persuaded him to go to Texas anyway without telling the others. Unsurprisingly, Nimoy and Fahn were livid when they found out, and Nimoy (who has been surprisingly candid about the ordeal when asked) has said he finds it difficult to forgive Johnny. Note that the reason there was an impasse in the first place is because the terms Funi was offering were such that Nimoy and Fahn would have lost income.
- What Could Have Been: Much like Inuyasha, Trigun was one of the [adult swim] anime shows that was meant for Cartoon Network's Toonami block but ended up airing on [adult swim] instead due to content issues (in this case, it was due to the amount of gun violence that would have to have been edited down... and a few scenes got censored on [as] anyway)note
- Oddly enough, Trigun, along with the original 1963 Astro Boy, was showcased during the April Fools Day 2012 Toonami broadcast, despite the two not having aired on Toonami before.
- Ever since Toonami was revived on [adult swim] hours, Trigun now has a chance to make an official premiere on Toonami (again, much like Inuyasha before it). So far, however, it has yet to do so. Though considering Badlands Rumble was picked for their December movie marathon...
- There was originally going to be a Trigun video game called Trigun: The Planet Gunsmoke. One of the characters, Gazelle the Peacemaker, even had an official action figure released. Some of Gazelle's design elements were reused for Livio and Beyond the Grave.
- According to Jeff Nimoy, he originally auditioned for the role of Vash. However, the producers thought that he had the voice of a cigarette-smoker (he doesn't smoke), so they cast him on the spot as Wolfwood instead.
- Word of God: Nightow says that Kuroneko-sama is female. He has also provided Wolfwood with about half a dozen middle names to go with that 'D.' ranging from "Dokonokuminomonjawaresumakinishiteshizumetarokakora" to "Daily Cigarette Intake."
Trivia / Trigun