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"I ran into them once when I was a whaler. They may be more beautiful than any woman you have seen, but they are as vicious as a blood-hungry shark! I know. I was the only member of my crew to survive."
― Eight-Fingers Oba, Heroes of Might and Magic IV, "The Strait of the Lost"
"I sat upon a promontory, and heard a mermaid, on a dolphin's back, uttering such dulcet and harmonious breath, that the rude sea grew civil at her song; and certain stars shot madley from their spheres, to hear the sea-maid's music."
― William Shakespeare

The power to use the abilities of merfolk. Technique of Merfolk Manipulation. Combination of Taur Physiology and Fish People Physiology.

Also Called[]

  • Merfolk Mimicry
  • Merkind Mimicry/Physiology
  • Mermaid/Merman Body/Form/Mimicry/Physiology/Transformation
  • Merpeople Mimicry/Physiology


The user with this ability either is or can transform into a merfolk (male or female), a being with the upper body of a humanoid and the lower body (in taur-style) of a sea animal/creature (mainly either that of a fish or cetacean). Some are able to transform completely into humanoid form to move on land and some can split their tail into legs. Others have to find other ways to move while on land.

Merfolk are sometimes depicted as perilous creatures associated with floods, storms, shipwrecks, and drowning. In other folk traditions (or sometimes within the same tradition), they can be benevolent, bestowing boons, teaching or even falling in love with humans.




Merfolk Types[]



  • May have complications when transitioning from water to air.
  • Ability to remain out of water varies: some are completely unable to breathe air and begin immediately suffocate out of water, others are able to breathe air but need to stay wet to avoid drying, and others being able to stay on land for prolonged periods of time with little to no ill effects.
  • Scales and skin may dry when overexposed to the Sun or artificial heat, such as fires or heaters.
  • May be vulnerable to certain diseases.
  • Lack of legs may pose locomotion difficulties on land: some are able to change between legs and fins, others cannot and are stuck with a tail even out of water.
    • The "non-changers" vary in their ability to move on land, some can move upright relatively normally walking/hopping on tailfins, others slither upright across land and some have to drag themselves/crawl on ground.

Known Users[]

See Also: Mer Tropes, Mermaid Media and Our Mermaids Are Different.


  • Iara (Brazilian Folklore)
  • Jiāorén (Chinese Mythology)
  • Atargatis (Classical Antiquity)
  • Mermaids/Mermen (Folklore/Mythology)
  • Tritons (Greek Mythology)
  • Tskarishdida (Georgian Mythology)
  • Selkie (Irish, Scottish, Faroese, and Icelandic Folklore)
  • Merrow (Irish Mythology)
  • Ningyo (Japanese Mythology)
  • Sea Deities (Mythology)
  • Jengu (Sawa Beliefs)
  • Ceasg (Scottish Folklore)
  • Havsfru/Havsra (Swedish Folklore)
  • Sjora (Swedish Folklore)
  • Mari Morgan (Welsh Folklore)
  • Mami Wata (West, Central and Southern Africa and African Diaspora)
  • Yemoja (Yoruba Religion)


  • Merna the Merhog (The Adventures of Sonic the Hedgehog)
  • Mermaids (Adventure Time)
  • Saleen (Aladdin: The Animated Series)
  • Rainbow Cove Mermaids (Barbie: Dreamtopia)
  • Mermaids (Barbie: Mermaid Power)
  • Bubble Guppies (Bubble Guppies)
  • Cala Maria (The Cuphead Show!)
  • Nurenya (Daniel Spellbound)
  • Mermaids (Disenchantment)
  • Sirenas (Elena of Avalor)
  • Meeshell Mermaid (Ever After High)
  • Mermando (Gravity Falls)
  • Amphitrite, Poseidon and Triton (Hercules: The Animated Series)
  • Rikki Chadwick (H20: Mermaid Adventures)
  • Emma Gilbert (H20: Mermaid Adventures)
  • Cleo Sertori (H20: Mermaid Adventures)
  • Merpeople (Jake Long: American Dragon)
  • Mermaids (Ruby Gillman: Teenage kraken)
    • Chelsea Van Der Zee/Nerissa
  • Sirena Von Boo (Monster High)
  • Mer-Pups (PAW Patrol)
  • Mermaid Pirate (Rise of the Teenage Mutant Ninja Turtles)
  • The Mer-Boy (Rupert)
  • Mermista (She-Ra: Princess of Power)
  • Mermaid (Shimmer and Shine)
  • Sofia the First (Sofia the First); via Amulet of Avalor
  • Merpeople (Sofia the First)
  • Triton (Spongebob Squarepants)
  • "Mermaid Teenager" incidentals (Spongebob Squarepants)
  • Merfolk (The Grim Adventures of Billy & Mandy)
  • Merpeople (Tara Duncan)
  • Alim Coelacanth (Teenage Mutant Ninja Turtles, 1987 TV series)
  • Merpeople (Voltron: Legendary Defender)
  • Merpeople (Winx Club)
  • Tsuni (Wishfart)
  • Muriel (Wishfart)
  • Dyris (Xiaolin Showdown)


  • Iqula of Tritonis (Aquaman)
  • Guy Guppy the Man-Mermaid (Babe, Darling of the Hills)
  • Merpeople (DC Comics)
  • Mer-People (Marvel Comics)
  • Mermaid (Marvel Comics)


  • Aquamarine (Aquamarine)
  • Mermaids (Barbie and the Secret Door)
  • Merpeople (Barbie: Fairytopia)
  • Merpeople (Barbie in a Mermaid Tale)
  • Merpeople (Barbie: The Pearl Princess)
  • Nereid (Fishtales)
  • Merpeople (The Little Mermaid Franchise)
  • Lily (Magic Island)
  • Shan (The Mermaid)
  • Siu May (Mermaid Got Married)
  • Mermaids/Mermen (Mermaids)
  • Merpeople (Onward)
  • Mermaids (Peter Pan)
  • Merpeople (Pirates of the Caribbean franchise)
  • Barnaby (Sabrina Down Under)
  • Finn (Sabrina Down Under)
  • Madison (Splash!)
  • Princess Mindy (The Spongebob Squarepants Movie)
  • King Neptune (The Spongebob Squarepants Movie)
  • King Poseidon (The Spongebob Movie: Sponge on the Run)
  • Cody Griffin (The Thirteenth Year)
  • Cody's mother (The Thirteenth Year)
  • Techno Trolls (Trolls World Tour)


  • Merkinds (Arkwell Academy)
  • Merpeople (The Chronicles of Narnia franchise)
  • Merfolk (Geronimo Stilton: The Kingdom of Fantasy)
  • Mermaids (The Gryphon Chronicles)
  • Naiads (The Gryphon Chronicles)
  • Merpeople (Harry Potter franchise)
  • Mermaids (Island of Fog)
  • Merpeople (The Little Mermaid)
  • Mermaids (Peter Pan)
  • Mermaids (Shadowhunter Chronicles)
  • Merfolk (The Spiderwick Chronicles)
  • Mer (The Waterfire Saga)
  • Sildroher (The Language of Thorns)

Live Television[]

  • Li Renyu (49 Days with a Merman)
  • Aryana Mendez (Aryana)
  • Princess Neptuna (Aryana)
  • Mermaids (Charmed)
  • Mermen (Charmed 2018)
  • Josephine as Dyosa Agua (Dyosa)
  • Merman Prince (Duyung Aridinata)
  • Dyesebel and other merfolk (Dyesebel)
  • Merpeople (H2O: Just Add Water/Mako: Island of Secrets)
  • Camilla/Iara (Invisible City)
  • Shim Cheong/Se-Hwa (The Legend of the Blue Sea)
  • Marina Aguas (Marina)
  • Ariel (Once Upon A Time)
  • Ursula (Once Upon A Time)
  • Urara Ozu (Mahou Sentai Magiranger); via Magi Mermaid form
  • Mermaid of Kinkow (Pair of Kings)
    • Mikayla Makoola; formerly
  • Madison Rocca (Power Rangers Mystic Force); via Mystic Mermaid form
  • Andrew's mother (Round the Twist)
  • Sirens (Wednesday)
    • Bianca Barclay
  • Merfolk/Merpeople (Siren 2018)
    • Ryn's Tribe
      • Ryn (Alpha)
      • Donna; Deceased
      • Levi
      • Eliza
      • Cami
      • Viv
      • Hunter
      • Sarge; Deceased
      • Mate
      • Elderly Mermaid
      • Hope
    • Tia's Tribe
      • Tia (Alpha; Deceased)
      • Katrina; Deceased
    • Yura's Tribe
      • Yura (Alpha)
      • Robb Wellens


  • Razette (07-Ghost)
  • Marina (The Adventures of the Little Mermaid)
  • The Lorelei (Ah! My Goddess)
  • Husky (Anima+)
  • Sirenoid (Bakugan)
  • Eve (Black Cat)
  • Mutio (Blue Submarine No. 6)
  • Aqua (Di Gi Charat)
  • AncientMermaidmon (Digimon)
  • Mermaimon (Digimon)
  • Neptunemon (Digimon)
  • Aria (Dog Days)
  • Mermaid Demons (Doraemon: Nobita's Great Adventure Into the Underworld)
  • Celia (Rave Master)
  • Flemia (Rave Master)
  • Aquarius (Fairy Tail)
  • Lisanna Strauss (Fairy Tail); via Take Over: Animal Soul
  • Haruka Nanase (Free!); via 2nd ending
  • Namiko (Ghost Sweeper Mikami)
  • Merman (The Haunted House/Shinbi Apartment)
  • Platy (Isekai de Tochi o Katte Noujou o Tsukurou,Isekai de Tochi wo Katte Noujou wo Tsukurou)
  • Mermaid Princesses (Mermaid Melody Pichi Pichi Pitch)
  • Wakasa (Merman in My Tub)
  • Lulala Heine (Monster Girl Doctor)
  • Mermaids (Monster Musume)
  • Mermaids (Moomin)
  • Lunar Edomae (My Bride is a Mermaid)
  • Sun Seto (My Bride is a Mermaid)
  • Mawari Zenigata (My Bride is a Mermaid); temporarily
  • All Merfolk (One Piece)
  • Stronami (One Piece:Mugiwara Theatre)
  • Tamao Ichinose and the Swim Club (Rosario + Vampire)
  • Mermaids (Shinkaigyo no Anko-san)
  • Oktavia von Seckendorff (Puella Magi Madoka Magica)
  • Golden Darkness (To Love-Ru)
  • Laura (Tropical-Rouge! Pretty Cure)


  • Merfolk (Dungeons & Dragons)


  • Merfolk (Magic: The Gathering)
  • Amazon of the Sea (Yu-Gi-Oh!)
  • Cure Mermaid (Yu-Gi-Oh!)
  • Deepsea Diva (Yu-Gi-Oh!)
  • Enchanting Mermaid (Yu-Gi-Oh!)
  • Evigishki Merrowgeist (Yu-Gi-Oh!)
  • Guardian Kay'est (Yu-Gi-Oh!)
  • Ice Water (Yu-Gi-Oh!)
  • Ill Witch (Yu-Gi-Oh!)
  • Mermaid Archer (Yu-Gi-Oh!)
  • Mermaid Knight (Yu-Gi-Oh!)
  • Most "Mermail" monsters (Yu-Gi-Oh!)
  • Rainbow Marine Mermaid (Yu-Gi-Oh!)
  • Red Archery Girl (Yu-Gi-Oh!)
  • Toon Mermaid (Yu-Gi-Oh!)

Video Games[]

  • Luke Custer's As Merman (Project Altered Beasts)
  • Mermen (Battle for Wesnoth)
  • Marino the Merman (Bust-a-Move 4)
  • Cala Maria (Cuphead)
  • Merfolk (Disney: Twisted-Wonderland)
    • Azul Ashengrotto
    • Jade Leech and Floyd Leech
  • Leia (Harvest Moon)
  • Sora (Kingdom Hearts)
  • The Marai (League of Legends)
  • Rivershaper (Legends of Runeterra)
  • Splash Woman (Megaman)
  • Mermaid (Megami Tensei series)
  • Maitin (Medabots series)
  • Marine Healer (Medabots series)
  • Mairegne (Medabots series)
  • Pure Mermaid (Medabots series)
  • Mermaid Spearband (Monster Legends)
  • Yae (Mystical Ninja)
  • Popplio-Brionne-Primarina (Pokémon)
  • Peach (Princess Peach: Showtime!); via Mermaid Peach
  • Serilly (Puyo Puyo)
  • Pia (Rune Factory)
  • Mermaids (Shantae)
    • Giga Mermaid
  • Seven Sirens (Shantae)
  • Shantae (Shantae); via Mermaid Dance
  • Mermaid (The Sims series)
  • Gill Grunt's Mermaid girlfriend (Skylanders)
  • Mermaid (Starfy)
  • Wakasagihime (Touhou Project)
  • Kiara Sessyoin (TYPE-MOON); as a MoonCancer
  • Delphinus (Valkyrie Crusade)
  • Havfrue (Valkyrie Crusade)
  • Mermaid (Valkyrie Crusade)
  • Mermaid Princess (Valkyrie Crusade)
  • Mermaid Tetra (Valkyrie Crusade)
  • Merrow (Valkyrie Crusade)
  • Ruriera (Valkyrie Crusade)
  • Seleya (Valkyrie Crusade)
  • Mermaidyn and Mermadonna (Yo-kai Watch)
  • Mermother (Yo-kai Watch)

Web Comics[]

Web Series[]

  • Radia, Apex and the Mer-people (Mermaid: Secrets of the Deep by 'Theekholms')
  • Dart the Merboy (No Pizza After Midnight)
  • Gooby (Planet Dolan)
  • Guto, Pedro, Norato, Raique & Samuel (Vida de Tritao by 'Tritao P.H.')




Live Television/Movies[]



Video Games[]