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[[quoteright:350:[[VideoGame/TeamFortress2 http://static.tvtropes.org/pmwiki/pub/images/Merasmus_347.png]]]]
[[caption-width-right:350:''"[[HumansAreTheRealMonsters Soldier! You were the wooorst roommaaate!!"]]'']]

->'''Christine:''' [Recorded] Hi, you've reached the Tittles. We can't come to the phone right now. If you want to leave a message for Christine, press one.\\
'''Bentley:''' For Bently, press two.\\
'''Tarfal:''' Or to speak to or worship Master Tarfal, Underlord of Pain, press three.
--> -- ''Series/{{Angel}}'', "Quickening"

Heroes tend to lead very... ''[[WeirdnessMagnet interesting]]'' lives, full of so many strange and fantastic sights and events that before long he's SeenItAll, or at least dealt extensively with one type of non-mundane creature/phenomenon. As a result of this, or coincidentally, the character now casually lives alongside or in close proximity with an alien, ghost, vampire, mutant and/or robot (though not necessarily [[NinjaPirateZombieRobot all in one character]]).

The nature of the arrangement varies. They might be allies of long standing, the monster [[HauntedHeadquarters came with the apartment]] as an unadvertised "bonus" and they've since hit it off, or both have made the completely mundane arrangement to share living space. It doesn't even have to be TheUnmaskedWorld, any monster that can fool {{muggles}} is going to have to pay the rent[[note]](HypnoticEyes and UndeadTaxExemption notwithstanding)[[/note]], and it's sometimes convenient to share space and bills. If they're VitriolicBestBuds, expect them to claim they keep the other as a "pet".

The setting doesn't have to be a FantasyKitchenSink for this trope to happen, it just needs one difference that makes it LikeRealityUnlessNoted, and the character has to live right next to that thing. For maximum effect however, the character's house might become a [[CosmopolitanCouncil full blown microcosm]] of the [[MonsterMash world's supernatural scene.]]

The "roomie" might be a NiceGuy ghost, a personable FullyEmbracedFiend of a vampire, {{The Protagonist}}'s MagicalGirlfriend, or one of the MadScientist's {{Mascot Mook}}s that has been reprogrammed/retrained. If Tom develops an UnwantedHarem, each girl will be from a different monster race. Mind the FurAgainstFang.

Expect a lot of {{Cross Cultural Kerfluffle}}s and humor. TwoGamersOnACouch frequently uses the Monster Roommate as a pet or one of the gamers.

Compare PalsWithJesus, where the friend is a powerful cosmic or mythical figure, and PetMonstrosity, where [[ExactlyWhatItSaysOnTheTin a monster is kept as a pet]].

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!!Examples:

[[foldercontrol]]

[[folder: Anime & Manga]]
* ''{{Doraemon}}'' - the titular robot cat lives in Nobita's closet (one of the earlier examples).
* ''UruseiYatsura'' - Ataru has an oni living in his closet (possibly a pun on the Japanese slang for PrettyFreeloader).
* In ''Manga/{{Bleach}}'', {{Shinigami}} Rukia lives in Ichigo's closet (much to his displeasure).
* In ''Manga/MahouSenseiNegima'', Kotaro starts staying with Natsumi and Chizuru after a little incident that resulted in amnesia. He gets his memory back and has been staying with them ever since (even using Natsumi's surname so he can pass as her "little brother". Considering they're well on the way to OfficialCouple, one has to wonder what that implies.)
* The plot of ''MagicalGirlLyricalNanohaAs'' begins when the four [[spoiler:[[RidiculouslyHumanRobots Ridiculously]]]] HumanAlien [[spoiler:[[RidiculouslyHumanRobots Program]]]] Wolkenritter appear before Hayate and start living with her.
* ''BrigadoonMarinAndMelan'' - Melan, a flying alien cyborg with weapons for hands, moves in with Marin and her human family in order to protect her from other aliens that try to kill her. He is treated as a member of the family by everyone in the house.
* In ''Manga/DeathNote'', Ryuk, a {{Shinigami}}, lives in Light's room, and describes himself as being his roommate.
* In ''Manga/DailyLifeWithMonsterGirl'', Kimihito has a whole [[HaremGenre harem]] of [[CuteMonsterGirl monster girls]] living in his house.
* The main premise of ''Manga/KamisamaKiss'' is an OrdinaryHighSchoolStudent moving in with a {{Kitsune}} and a pair of shrine spirits.
[[/folder]]

[[folder:Comics]]
* The Caged Demonwolf in ''ComicBook/{{Empowered}}'', SealedEvilInACan that can still see, hear and talk, and spends most of its time snarking at its captors and perving over their sex lives.
[[/folder]]

[[folder:FanFiction]]
* In the ''{{Manga/Bleach}}'' fic ''TheWorldInBlackAndWhite'', Ichigo, who became a Hollow after being killed by Grand Fisher, is roommates with Uryu.
* The ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' fic [[http://www.fimfiction.net/story/114049/this-is-the-life-a-tale-of-a-human-in-equestria This is the Life: A Tale of a Human in Equestria]] puts the titular character and Octavia as roommates for some [[RuleOfFunny undisclosed]] reason.
[[/folder]]

[[folder:Film]]
* At the end of ''Film/{{Beetlejuice}}'', the human Deetz family is living with the ghostly Maitlands.
* ''TheGhostAndMrsMuir'' (1947)
* ''MyFavoriteMartian'' (1999)
[[/folder]]

[[folder:Literature]]
* The short story ''Living With the Harpy'' by Tim Pratt is about, well, [[ExactlyWhatItSaysOnTheTin just guess]].
[[/folder]]

[[folder:Live Action TV]]
* ''TheGhostAndMrsMuir'' (1968-1970)
* ''MyFavoriteMartian'' (1963-1966)
* ''Series/TheAddamsFamily'' (1964-1966) lived with The Thing, as well as frequent visitor Cousin Itt, and YMMV [[SlidingScaleofAnthropomorphism on the monstrousness of]] some of the others living in the house (eg. Lurch).
* ''TheMunsters'' (1964-1966) inverted the trope (perhaps before it was fully developed) with family of token monsters and a human live-in relative Marilyn.
* On ''Series/{{Angel}}'', Cordelia shares her apartment with "Phantom Dennis", the ghost of a previous tenant whose [[MyBelovedSmother mother]] [[SealedRoomInTheMiddleOfNowhere walled him up]] to prevent him from running off with his girlfriend. (Except we only rarely "saw" Dennis past the episode establishing him.)
** He was referenced or spoken to/of in anytime an episode featured Cordelia's apartment. He was even shown helping Cordy cover up the escalating damage her visions had been doing.
** Lorne also filled this role quite a bit in later seasons. See also the page quote. Both ''Buffy'' and ''Angel'' were regular employers of this trope.
* SARAH, the Smart House on ''{{Eureka}}'', might qualify. Some people are certainly freaked by the idea of living inside HER and her actions/over-reactions in one of the later first season episodes made her the MonsterOfTheWeek when she thought Sheriff Carter was going to leave town.
* The show ''Series/BeingHuman'', where a vampire and werewolf move into an apartment that they later realize is haunted by a ghost. They all get along better than you might expect.
* ''HarryAndTheHendersons'', about a family sheltering a friendly Bigfoot.
* ''Series/{{Star Trek Deep Space Nine}}'': In "The Search, Part I", Odo briefly serves as this to Quark, literally and figuratively. Limited space on board the Defiant means that the two must share quarters, which becomes very uncomfortable for both men when Odo has to liquefy in order to rest.
-->'''Odo:''' I have been holding this shape for sixteen hours. I have to revert back to my liquid state, but I don't want you to watch and gawk at me.
-->'''Quark:''' I understand, completely. This is a very private moment and I won't interfere. This won't be so bad, sharing—
-->'''Odo:''' I HAVE NO INTEREST IN SPEAKING TO YOU, OR IN LISTENING TO YOUR WITLESS PRATTLE. SO STAY OUT OF MY WAY, OR YOU'LL REGRET THE DAY YOU EVER MET ME.
[[/folder]]

[[folder:VideoGames]]
* The Soldier of ''VideoGame/TeamFortress2'' is roommates with a magician named Merasmus. They don't exactly get along well.
** Last Halloween Merasmus sent out his anger towards the entire team simply because he ''couldn't kill his roommate''.
*** [[EvilerThanThou Kinda fuzzy who's more monstrous though.]]
*** Merasmus' last roommate? [[spoiler: Music/TomJones.]]
* ''[[VideoGame/SaGa2 Final Fantasy Legend II]]''. In addition to being able to set your class as a monster child raised by human parents, other monsters are generally living with humans. They can be roommates, classmates, and/or teammates.
[[/folder]]

[[folder:Webcomics]]
* David and Nancy [[note]]and [[MotherOfAThousandYoung Shubby]], [[BlobMonster Shogga]], [[JackassGenie Narla]] and [[StarfishAliens Freddie]][[/note]] in ''Webcomic/OwMySanity''.
* In a side-comic of ''TooMuchInformation'', Maddie shares her room with what is, essentially, the larval form of a 'cosmic horror' type entity. He seems to exist mostly for the benefit of FishOutOfWater jokes.
* A variation in ''Webcomic/EightBitTheater'', where it's heavily implied that [[IdiotHero Fighter]] and [[OmnicidalManiac Black Mage]] have been traveling and living together for a ''very'' long time (they met up after they both got kicked out of their respective schools (Black Mage for giving a new meaning to the word Evil, and Fighter for [[AttentionDeficitOohShiny having the attention span of a rock]]) and they've [[VitriolicBestBuds been together ever since]]). It may have contributed to Black Mage's frequent bouts of omnicidal mania. [[http://www.nuklearpower.com/2005/03/15/episode-527-imprisoned-with-the-fools/ Exhibit A]].
* Tedd of ''Webcomic/ElGoonishShive'' lives with Grace his part-human, part-alien, part-squirrel shapeshifting girlfriend.
* In ''Webcomic/WapsiSquare'', Tepoztecal, the Aztec god of alcohol, has spent much of the comic living at Monica's place.
* ''Webcomic/ZombieRoomie'': John is a human dork and George is a jerk and a zombie.
* Jareth for the other main cast members of ''Webcomic/{{Roommates}}''. He's one of TheFairFolk (or at least pretty close, as his father is pure blooded fae noble and his mother a powerful witch) so generally not good for soul and sanity.
* Aylee from SluggyFreelance is a mutating-shapeshifting xenomorph-type alien from another dimension, who is actually one of the more stable, reliable and friendly roommates in the house when her mutations aren't causing problems. Sam is a vampire who occasionally crashes with the gang. Depending on one's definition of "monster" Bun-bun might count as well, being a talking, misanthropic lop-eared rabbit who is one of the deadliest beings in the universe [[spoiler: and possibly an amnesiac god]].
* [[http://www.biggercheese.com/index.php?comic=808 This]] BiggerThanCheeses strip. Oh Xu'alz'kthar, you adorable scamp.
[[/folder]]

[[folder:WesternAnimation]]
* Lilo and Nani from all the ''LiloAndStitch'' movies and the television series.
* In ''UglyAmericans'', Mark lives with Randall, a zombie. Of course, this is a series where the monsters considerably outnumber the humans, so Mark doesn't see anything particularly strange about his living arrangements, even though Randall has brain cravings that seem reminiscent of a recovering alcoholic.
* ''TheTick'' once faced against an evil alien named Thrakkorzog, ruler of dimensio... Errr... ''Apartment'' 14-B. He was roommates with a man who was barely even aware that he was sharing rent with a BlobMonster from outer space.
-->'''Arthur:''' Are you aware your roommate is a hideous monster from another dimension with evil plans for world domination?\\
'''Thrakkorzog's roommate:''' Listen, a good roommate relationship is based on a respect for privacy.
** Tick himself can also be considered an example, a NighInvulnerable {{Cloudcuckoolander}} superhero rooming with a mild-mannered former accountant (who wears a moth costume, but that's neither here nor there).
* ''{{Futurama}}'': Human Fry lives with Bender, who, for those not familiar with the show, is a robot.
** Specifically, Fry lives in Bender's apartment. Fry is Bender's MonsterRoommate.
*** More than that. He lives in Bender's closet. (Which is as large as a 1 1/2 apartment), while the apartment itself is as large as, well, a closet.
* None of the Justice Friends (titular stars of the segment and show-within-a-show on ''WesternAnimation/DextersLaboratory'') are exactly what you'd call ''normal'', but The Infraggible Kronk is the most monstrous of the three, being a giant purple {{Expy}} of ComicBook/TheIncredibleHulk.
* After being ejected from her home by a CorruptCorporateExecutive, human child Sari Sumdac spends the second season of ''WesternAnimation/TransformersAnimated'' living with the Autobot protagonists.
[[/folder]]

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