* AdaptationDisplacement: Most people who know about Brainiac are more familiar with his evil AI incarnation from [[WesternAnimation/SupermanTheAnimatedSeries the cartoon]] than they are with the earlier comic book incarnations. This is most likely the reason it has become a frequent RetCanon.
* CompleteMonster: One of the most infamous in DC comics and comics history as a whole. Comicbook/{{Superman}} is an icon of good and Comicbook/{{Brainiac}} as his thematic EvilCounterpart is more often than nought the exact opposite.
** Several incarnations at Monster/{{Superman}}, Monster/DCUniverse, and Monster/{{Batman}}.
** Several incarnations at Monster/DCAnimation.
** His ''Series/{{Smallville}}'' incarnation at Monster/LiveActionTVMToZ.
** His ''VideoGame/Injustice2'' and ''VideoGame/JusticeLeagueHeroes'' incarnations at Monster/VideoGamesAToK.
** The Brainiac 8 (Indigo) incarnation from ''Series/{{Supergirl 2015}}'', at Monster/{{Arrowverse}}.
* CantUnhearIt: Creator/CoreyBurton's voice for Brainiac in the Franchise/{{DCAU}} is what most fans tend to hear in their heads when reading his lines.
* EvilIsCool: Naturally. Brainiac has consistently been a threat to Superman across the decades no matter how strong the Man of Steel becomes.
* LoveToHate: Comicbook/{{Brainiac}} is one of the few villains who can go toe to toe with the man of steel. His cold desire for Knowledge at any cost and status as the thematic EvilCounterpart to Comicbook/{{Superman}} make him one of the most well liked member of the Superman RoguesGallery.
* MainstreamObscurity: Brainiac was so ubiquitous and popular in the Silver Age that his name became slang for intellectual and introduced a word in the cultural lexicon, but his cross-media appearances has prevented him from being as famous as other villains. He has yet to appear in a single Live-Action film version of Superman (which has seen three Lex Luthors and two General Zods) and his most well known appearance, the Franchise/{{DCAU}} take, is different enough from his comics that they make newcomers confused about the two versions.
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