The ability to alter the gender of oneself and others. Variation of Shapeshifting.

Also Called

  • Bisexual Transition
  • Gender Alteration/Changing/Shifting/Swap/Swapping/Switching
  • Male/Female Shifting
  • Sequential Hermaphroditism
  • Sex Alteration/Changing/Shifting/Swap/Swapping/Switching/Transformation


The user can alter ones and other peoples gender either permanently or temporarily, they may be able to combine genders for hermaphrodite or remove both for neutri. The change is completely to cellular level.



  • May be limited to changing the gender of either oneself or others.
  • Might only be able to change to one gender, not both.
  • May become pregnant, and be both biological mother and father to the baby.
  • The clothes may not change.
  • While the gender does change, anything else stays the same: hair, eye, skin color, general facial features, body-structure, etc.
  • May go through the phases of the opposite gender.
  • May develop an alter-ego when changing gender.

Known Users


  • Peter Griffin (Family Guy); temporarily via shapeshifting
  • Bugs Bunny (Loony Tunes)
  • The Mask (The Mask Animated Series)
  • Osmosis Jones (Ozzy and Drix)
  • Aku (Samurai Jack)


  • Wotan (DC Comics); via reincarnation
  • Mystique (Marvel Comics)


  • Ahrnell (Hiling); after accidentally being touched by Anna
  • Dinosaurs (Jurassic Park)
  • Dren (Splice)


  • Artemis (Greek Mythology)
  • Isis (Egyptian Mythology)
  • Leto (Greek Mythology)
  • Loki (Norse Mythology)


  • La Pucelle (Mahou Shoujo Ikusei Keikaku)
  • Users (Cybernetrix); while in Cybernetrix
  • Metamorphmagi (Harry Potter)

Live Action TV

  • Alex Johnson (The Almighty Johnsons)
  • Willow Rosenberg (Buffy the Vampire Slayer); via Sex Change spell
  • The Charmed Ones (Charmed); via Spell Casting
  • Timelords (Doctor Who)
    • The Master
  • Gabriel Gray/Sylar (Heroes); via shapeshifting
  • Curtis Donovan (Misfits)
  • The Spellman witches (Sabrina, the Teenage Witch); via a boy potion
  • Tina Greer (Smallville)
  • Russo siblings (Wizards of Waverly Place); via Spell Mixture
    • Kelbo Russo; originator of Shakira


  • Yuka Minase (11eyes)
  • Thor (A Certain Magical Index)
  • Uruki (Fushigi Yuugi)
  • Arachne Guildy (Gonna Be the Twintails!)
  • Mitsuka Sōji/Tail Red/Sōra (Gonna Be the Twintails!)
  • Phoenixgildy (Gonna Be the Twintails!)
  • Tomoki Sakurai (Heaven's Lost Property)
  • Natsuru Senō (Kämpfer)
  • Shiria Ootsuka (Maken-ki)
  • Najimi Ajimu (Medaka Box); with Ladies And Gentlemen (Biological Skill)
  • Konohamaru (Naruto)
  • Naruto (Naruto)
  • Bentham (One Piece)
  • Emporio Ivankov (One Piece); via Horu Horu no Mi
  • Ranma Saotome (Ranma ½)
  • Seiya Kou, Yaten Kou, and Taiki Kou (Sailor Moon)
  • Phantasos (Saint Seiya)
  • Homura (Sekirei)
  • Last Amazoness (Seto No Hanayome)
  • Kuroumaru Tokisaka (UQ Holder!)
  • Ataru Moroboshi (Urusei Yatsura)

Video Games

  • Demitri Maximoff (Darkstalkers)
  • Hive (Destiny)
  • Alex Mercer (Prototype)
  • James Heller (Prototype 2)
  • The Make-over Mage (RuneScape)
  • Gnome (Valkyrie Crusade)


  • Elliot Dunkel (El Goonish Shive)
  • Tedd Verres (El Goonish Shive)

Known Objects

  • Ianhte (Aquarion Evol)
  • Girdle of Masculinity/Femininity (Baldur's Gate)
  • Transformation Gun (El Goonish Shive)
  • Mol-Unit (Moldiver)
  • SCP-113 (SCP Foundation)
  • Contract Bracelet (Kämpfer)
  • Tail Gear (Ore,Twintail ni Narimasu!)
  • Book of Eibon (Soul Eater (manga)); Chapter 1: Lust

Known Locations

  • Trans State (Sinfest)


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