* ActorAllusion:
** Creator/DaveWittenberg's character, Ferro Lad, at one point tells Lightning Lad that [[Manga/{{Naruto}} he doesn't want to see what's under his mask]].
** Dorian Harewood, who voices Dr. Londo in Season 2, also voiced another [[Anime/AstroBoy doctor who had issues with his son]]. Unfortunately, this one had much less of a "happy ending" vibe to it.
* ExecutiveMeddling: The reason Saturn Girl didn't make as many appearances in Season 2 was because the crew was told to make the cartoon appeal more to boys.
* TheOtherDarrin: As mentioned above, both Emerald Empress and Dr. Londo have their voice actors changed in Season 2.
* RecursiveAdaptation: The tie-in comic, ''Legion of Super Heroes in the 31st Century'', though it [[http://www.worldsfinestonline.com/WF/losh/guides/comic/09.jpg features]] [[http://www.worldsfinestonline.com/WF/losh/guides/comic/11.jpg designs]] for characters who didn't appear in the show that were closer to the Franchise/{{DCAU}}, including ComicBook/{{Brainiac}} (who appeared in Season 2 with [[http://www.worldsfinestonline.com/WF/losh/episodes/2526darkvictory/02.jpg a far different design]]) and ComicBook/MartianManhunter.
* TalkingToHimself: Creator/YuriLowenthal plays Superman and Superman X.
* WhatCouldHaveBeen
** This series was originally pitched as part of the Franchise/{{DCAU}}, with ''WesternAnimation/JusticeLeague Unlimited's'' late series episode "Far From Home" as a PoorlyDisguisedPilot.
** There was to have been a third season. And it was to have been awesome.
** Also, Mon-El was supposed to be in the line-up for Season 2. Instead we got [[CanonForeigner Superman X]].
** James Tucker had plans to make Alexis Luthor into TheDragon for Imperiex in season two. She would have later made a HeelFaceTurn (out of personal selfishness, of course) and betrayed him, gaining the galaxy's trust and running for a political position. Due to ExecutiveMeddling, however, they had to reduce the number of female characters for most of the season, and the subplot was cut.
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