The Alien Parasites are an unnamed group of aliens who invade and conquer planets by shape-shifting into the forms of various beings such as humans, aliens, animals, historical figures etc. and taking up a persona of them.


When alien parasites arrive on a planet, they implant people's minds with false memories of invented characters being people such as friends, family members, etc. Once they have multiplied enough, they use this to take over the planet and enslave the race. They invaded Earth and confronted the Smith family.

"These telepathic little bastards embed themselves into memories and multiply to take over planets! They're disgusting, so be careful of any wacky or zany characters that pop up".
—Rick explaining the parasites[src]

As Morty discovered, the parasites only implant perfect, friendly and happy memories into their victims. This means if someone cannot remember any bad memories of another person, the latter could be a parasite.

They also seem capable of suppressing other memories, particularly ones contradictory to memories they have implanted. One of the characters created, Sleepy Gary, replaces Jerry as Beth's husband, and for this to work any memories of Jerry as Beth's husband would need to be suppressed. When Rick threatened to kill Summer, Sleepy Gary stood in the way, shouting 'That is my daughter.'.


Unnamed Forms

This is a list of forms that the parasites have taken, but were not named:

  • Astronaut
  • Bear Parka-Wearing Bird - It is one of Tinkles' friends.
  • Bearded Lady
  • British Guard
  • Burglar
  • Butterfly/Sunflower hybrid - It is one of Tinkles' friends.
  • Caveman
  • Chef
  • Chowder Look-A-Like - It is one of Tinkles' friends.
  • Cloud Yeti - It is one of Tinkles' friends.
  • Duck With Muscles
  • Easter Bunny Monkey Critter - It is one of Tinkles' friends.
  • Elvis Impersonator
  • Flamingo
  • Fruit Hat Showgirl
  • Giant Robot
  • Girl Robot
  • Girl Scout
  • Gnome
  • Harlem Globetrotter
  • Headphones-Wearing Dragon - It is one of Tinkles' friends.
  • Hoodie-Wearing Slug - It is one of Tinkles' friends.
  • Humanoid Bear - It was said to have compatible kidneys alongside Beth's kidneys.
  • Humanoid Catfish
  • Humanoid Fox
  • Humanoid Sun
  • Humanoid Unicorn
  • Japanese Businessman
  • Kaiser Wilhelm II
  • Lucky Cat
  • Mel Gibson as William Wallace Look-A-Like - From the film Braveheart.
  • Mexican Man
  • Mr. Peanut Look-a-Like
  • Mushroom Head
  • Nun
  • Pink Balloon Animal
  • Rooster
  • Scottish Warrior
  • Sea Captain in Rain Gear
  • Small Cowboy on Dog
  • Snake in Party Hat
  • Snorkel Kid
  • Space Monkey
  • Sunglasses-Wearing Strawberry - It is one of Tinkles' friends.
  • Sweatband-Wearing Star - It is one of Tinkles' friends.
  • Trashcan-Wearing Creature
  • Waka Flocka Flame Look-A-Like - He is one of Tinkles' friends.
  • Winter-Wear Turtle - It is one of Tinkles' friends.



  • Rick was the one that brought the parasites to the house, he can be seen picking up some rocks with some eggs at the end of "Mortynight Run" and can be seen binning the same rocks at the start of "Total Rickall."
  • The parasites resemble the Rasklapanje, an enemy from Resident Evil 6
  • Some of the parasites resembling humans from appearance to memories is based off the Worms from Kamen Rider Kabuto.
ve Rick and Morty Characters
Main characters
Current cast Rick SanchezMorty SmithSummer SmithJerry SmithBeth Smith
Minor characters
Humans Abradolf LinclerAgency DirectorAlan RailsAnnieBradDavinDiane SanchezDr. WongEthanFrank PalickyGene VaginaGordon LunisJaguarJessicaJoyce SmithLeonard SmithLogicLucius NeedfulLucyMC HapsMr. GoldenfoldNancyPaul FleishmanPonchoProfessor TockRogerRubenSteveTammyThe President of the United StatesToby MatthewsTommy LipnipTricia LangeVance Maximus
Aliens Alien ParasitesArmagheadonArthriciaBaby PoopybuttholeBeeboBenjaminBeta-SevenBirdpersonBlim BlamChrisClass-2 ClonerbeastConcertoCornvelious DanielDr. Xenon BloomEyehole ManFartGar GloonchGearheadGlexo Slim SlomIce-TKearaKevinKing Flippy NipsKing JellybeanKrombopulos MichaelKyleMa-ShaMr. MeeseeksMr. PoopybuttholeMrs. PoopybuttholeNoob-NoobPresidentress of The Mega GargantuansPrince NebulonPurge Planet RulerRisotto GrouponScroopy NoopersShleemypantsShrimply PibblesSquanchyStealySupernovaThe President of the MiniverseTree PeopleUnityVoltematronWorldenderZarbadar GloonchZeep XanflorpZick Zack
Alien/Human hybrids Morty Jr.
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Ricks Adjudicator RickAfro RickAlien RickAntenna RickAqua RickBald RickBootleg Portal Chemist RickC-132Cat RickCommander RickCop RickCowboy RickCronenberg RickCurly-haired RickCyclops RickD716D716-BD716-CDumb RickEvil RickEvil Rick's Target DimensionFancy RickFemale Doofus RickGarment District RickGiant butt-eating RickGoo Monster TargetInvestigator RickJ-22J19α7J19ζ7Juggling RickK-22K-83Lizard RickMaximums RickimusMechanical RickMega Fruit Farmer RickPlumber RickPrivate Sector RickQuantum RickRegional Manager RickReplacement Dimension RickRetired General RickReverse Rick OutrageRick D. Sanchez IIIRick Guilt RickRick PrimeRicktiminus SancheziminiusRiq IVRobot RickS-223Salesman RickSimple RickSlow Jamz RickSlow RickSolicitor RickTeacher RickThe Scientist Formerly Known as RickToxic RickWoman RickYellow Shirt RickZeta Alpha Rick
Mortys 304-X9-2184CAlien MortyAntenna MortyAqua MortyArtist MortyBald MortyBartender MortyBig Head MortyBig MortyBlue Shirt MortyC-132Campaign Manager MortyCat MortyCop MortyCowboy MortyCronenberg MortyCrop Top MortyCult Leader MortyCyclops MortyDipper MortyEric Stoltz Mask MortyEvil MortyEvil Rick's Target DimensionFascism-fighting MortyFreckled MortyGenius MortyGiant butt-eating MortyGlasses MortyGoo Monster TargetHammerhead MortyK-22Lawyer MortyLeft-Handed MortyLizard MortyLong Sleeved MortyMabel MortyMechanical MortyMorty Mart Manager MortyMortytown LocosReplacement Dimension MortyRobot MortyRodent MortySimulation MortySlick MortyTortured MortysToxic MortyToy MortyTrunk Morty
Summers 304-XC-1239C-132C-137Evil Rick's Target DimensionMechanical SummerS-223
Jerrys 304-XAbandonned JerrysC-132C-137C-500AD-324Evil Rick's Target DimensionFemale JerryIdeal JerryJ19α7MythologPresident JerrySelf-Congratulatory Jerry
Beths 304-XC-1239C-132C-137C-500ABeauty Mark BethCat BethEvil Rick's Target DimensionGoddess BethMytholog
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