* ClumsyCopyrightCensorship: Morbulus was originally named Occulus, which was a better name for him, given his extra eyes; however, Creator/MarvelComics already had that name, so H-B redubbed his dialog to refer to him as Morbulus ([[ShaggyDogStory though Marvel didn't even complain about the original name]]). However, his model sheets and such still used his orginal name, as did at least one script after the name change (apparently the crew were still using the original name).
* ContestWinnerCameo: While there was no actual contest, Dr. Konway from "Mutation City" was based on a fan who sent the Tremblays numerous fan letters.
* KeepCirculatingTheTapes: No longer in effect, as Creator/WarnerBros, through their Warner Archive DVD-on-Demand program, released ''SWAT Kats'' in December 2010, with some missing scenes restored (the EpisodeTitleCard for "The Pastmaster Always Rings Twice", and the farmer getting devoured in "The Giant Bacteria"); although in January 2012 they issued an updated version, mainly because the original [=DVDs=] had the ending credits wrong for many of the episodes.
* NamesTheSame: Dr. Viper was also the name of the BigBad in the short-lived ''Shadow Strikers'' franchise.
* TheOtherDarrin: A few characters had different voice actors between seasons, and in some cases, between episodes.
** The Sergeant was first voiced by [[WesternAnimation/TaleSpin Ed Gilbert]] for most of Season 1. Beginning with "Enter the Madkat," however, he was voiced by Creator/JimCummings. Cummings voiced him for the remainder of Season 1 and all of Season 2.
** In "The Wrath of Dark Kat," Al the Kat's Eye News helicopter pilot is voiced by Creator/FrankWelker. The next time he appears, in "Night of the Dark Kat," he's voiced by Creator/RobPaulsen.
** Dr. Greenbox is voiced by Creator/RobertPatrick in Season 1's "Chaos in Crystal." By the time he reappears in Season 2's "Unlikely Alloys," Creator/NickChinlund has taken over the role.
* PlayingAgainstType:
** It isn't that Creator/HannaBarbera ''hadn't'' done DarkerAndEdgier shows before, but this and ''WesternAnimation/ThePiratesOfDarkWater'' were the studio's first attempts at full-blown, no-holds-barred action and adventure, and they're a far, far cry from the FunnyAnimal cartoons they established themselves on in the 1960s. More than that, they were the studio's first truly creator-driven shows.
** Casting-wise, it served as this for Creator/CharlieAdler, who tends to do more comedic roles (like [[WesternAnimation/CowAndChicken Cow, Chicken and the Red Guy]]), and for Creator/GaryOwens, who either tended to be an announcer (like on ''Series/RowanAndMartinsLaughIn''), or a full-fledged superhero (WesternAnimation/SpaceGhost and [[WesternAnimation/DynomuttDogWonder Blue Falcon]]), not an police commander with a [[AntiHero big chip on his shoulder towards vigilantes]], [[OnlyICanKillHim ego issues]], [[ArsonMurderAndJaywalking and a tendency]] to call for [[RedshirtArmy tons of backup that gets demolished]].
* RecycledScript:
** "Razor's Edge" and the ''WesternAnimation/BikerMiceFromMars'' episode "[[Recap/BikerMiceFromMarsS2E32ModoHangsItUp Modo Hangs It Up]]", both written by the same author, share similar plots: one of the heroes suffers a HeroicBSOD followed by a TenMinuteRetirement.
** Elements of the unfinished episode "Succubus!" (aka "The Curse of Kataluna") were later recycled for ''WesternAnimation/ScoobyDooOnZombieIsland'', and the episode "Eclipse" of ''WesternAnimation/JonnyQuestTheRealAdventures'' (Glenn Leopold, who wrote the episode, wrote for both of those projects; Davis Doi, co-producer of ''SK'', also co-produced season 2 of ''Quest'').
* ScrewedByTheNetwork: As already described.
* ShowAccuracyToyAccuracy: The ''SWAT Kats'' action figures were all redesigned from the characters' TV versions. Most drastic change: Dark Kat was apparently a {{Cyborg}}, a revelation the show never even hinted at.
* ShrugOfGod: Whether or not Dr. Zyme really was KilledOffForReal in "The Giant Bacteria". The writers, when asked, tend to avoid answering the question or give answers such as Glenn Leopold calling Zyme "[[NeverSayDie survivally challenged]]" instead of dead. The closest to a confirmation comes from Christian Tremblay, who said, "He probably died!"
** At the 2016 Anime Matsuri convention, a printout was provided, signed by Christian Trembley, thanking various fans for their participation in the fandom throughout the years. It ended with the apparently sincere "''AND'' apologies for killing off Dr. N. Zyme."
* TalkingToHimself: Whenever T-Bone and Murray interact.
** Creator/JimCummings whenever Dr. Konway and Mayor Manx were onscreen together in "Mutation City". This probably cropped up a lot more on a smaller scale, as Cummings seemed to voice a solid third of the one-shot and background characters.
* UnfinishedEpisode: The series was canceled so abruptly that three episodes were left unfinished; they were storyboarded and the voice tracks were recorded, but they were never animated. All three were written by Glenn Leopold.
** In "Succubus!", Commander Feral begins dating the wealthy and beautiful Katrina Moorkroft, unaware she is a succubus who plans to drain his lifeforce on a full moon. The plot summary and script for it can be read [[http://swatkats.info/encyclopedia/official/succubus-plot-summary here]].
** In "Doctors of Doom", Dr. Viper teams up with Dr. Harley Street (the MASA scientist from "The Ci-Kat-A") to create giant monsters.
** In "Turmoil II: The Revenge", Turmoil escapes from prison and takes over a KillSat.
* WhatCouldHaveBeen:
** According to Lance Falk, a writer for the show, "When Strikes Mutilor" was supposed to end with the pacifist astronauts being ''human''; with two of them removing their helmets and commenting how there's intelligent life, and we see an American flag in the background, confirming that the series took place on another planet in the future. However, H-B exec Buzz Potemkin "didn't get it" and had them changed to kat aliens, much to Falk's displeasure.
** Lance Falk had big plans for Commander Feral in his initial pitch for "Cry Turmoil". It was originally Feral, not T-Bone, who joined Turmoil's forces. Unlike T-Bone's FakeDefector act in the finished episode, Feral's FaceHeelTurn would have been real--until he realized that the SWAT Kats were going to win, which prompted him to betray Turmoil, then claim he was planning to do so all along. In the end, only Feral and the audience would have known about his trip through the FaceHeelRevolvingDoor.
** Lance Falk had two unrealized ideas for future appearances by Rex Shard, the villain of "Chaos in Crystal". Each time he returned, he would get a different power to use against the SWAT Kats (what would have been his second appearance would have him gain power over the weather by diving into an experimental energy source, and freezing Megakat City). And each time the pilots defeated him, he'd show the effects of the previous encounter. For example:
-->'''Falk''': "Hed lose an eye, so from then on when you saw the guy he had an eyepatch. And each time he comes back, hes a little more beat up. Hes become a fanatic, and hes lost all sight of everything but {{revenge}}, and its really destroying him."
*** The summary for this episode, titled "Cold War", can be found [[http://skfanfic.com/authors/lance-falk/cold-war here]]. Another unused story idea of Falk's, "Blackout", can be read [[http://skfanfic.com/authors/lance-falk/blackout here]].
** The VillainTeamUp episode "Katastrophe", written by Glenn Leopold, was originally called "Blowout!" and was written by Lance Falk. Other than Dark Kat, Dr. Viper and the Metallikats teaming up and kidnapping Callie and Manx, it had little in common with the final product, and was a much more ambitious story than "Katastrophe" ended up being. It featured, among other things, giant tree monsters and a huge mobile command center for Dark Kat called the Fear Train. A plot summary is available here [[http://swatkats.info/encyclopedia/official/blowout-summary-review here]] while the script itself can be read here [[http://skfanfic.com/authors/lance-falk/blowout here]].
----