For a gallery of examples for Demonic Physiology, see here.

Power to use the abilities of demons. Variation of Mythic Physiology. Opposite of Angelic Physiology.

Also Called

  • Demon Mimicry/Physiology
  • Devil Mimicry/Physiology


User with this ability either is or can transform into a demon, an evil spirit, fallen angel or Satanic divinity. Most commonly user retains their general form but with some additions; horns, claws, fangs and tail are common, as are wings, more fit (muscular and/or larger) body and color change (red, blue or black dominate) but there are several kinds of demons who are far less humanoid, varying from strange, surreal or even absolutely horrific.

For practical reasons demons can be divided into three groups defined by what they are formed from:

Physical Demons aren't necessarily solid matter, but they are material/energy beings with relatively defined/stable form and often at least somewhat human-like mind. Most users that aren't originally of demonic stock have this variation. Note that demons of this group aren't necessarily any weaker than those of the other groups, they are simply more "solid" in mind and body.

Spiritual Demons are completely spiritual beings, and thus far less bound to the laws of physics or single form. Many of them think in ways that are only tangentially relatable to humans, and their forms are both transient and often downright surreal.

Ethereal Demons are often both the most powerful and ancient demons, in some ways closer to sentient concepts than anything else. As such, relating to them in any way is likely impossible.


Physical Demons

Spiritual Demons

Ethereal Demons

Common Powers

Following powers are among the most common ones demons may have:


Many Demons have different interests and/or they are Created for different purposes, so many have additional abilities, like Demons of Plagues, Wrath or other Seven Sins just to name few. For more examples, see The Lesser Key of Solomon.



  • Some may have an unstable personality, even mistaken for Possession.
  • May have a hard time returning to normal.
  • May be overpowered by Angelic Physiology or other holy powers.

Known Users

See Also: Our Demons Are Different

  • Trigon (DC Comics)
  • Raven (DC Comics)
  • Gluttony (DC Comics)
  • Greed (DC Comics)
  • Lust (DC Comics)
  • Wrath (DC Comics)
  • Envy (DC Comics)
  • Sloth (DC Comics)
  • Belial (DC Comics)
  • Merlin (DC Comics)
  • Lord Scapegoat (DC Comics)
  • Etrigan/Jason Blood (DC Comics)
  • Sargeras (Warcraft)
  • Illidan (Warcraft)
  • Sebastian Michealis (Black Butler)
  • Claude Faustis (Black Butler)
  • Hannah Annafellows (Black Butler)
  • Ciel Phantomhive (Black Butler); anime only
  • Timber (Black Butler)
  • Cantebury (Black Butler)
  • Thompson (Black Butler)
  • Fanoxean (The Young Guardians)
  • Violator (Spawn)
  • Lucifer (Dante's Inferno)
  • Demons (Diablo)
  • Prime Evils (Diablo)
  • Lesser Evils (Diablo)
  • Eddie Riggs (Brütal Legend)
  • Emporer Doviculus (Brütal Legend)
  • The Tainted Coil (Brütal Legend)
  • Hellboy (DarkHorse)
  • Alucard in various forms (Hellsing)
  • Legion (5ive Girls)
  • Vincent Valentine (Final Fantasy VII); via Chaos
  • Blue Devil (DC Comics)
  • Sparda (Devil May Cry)
  • Dante (Devil May Cry)
  • Virgil (Devil May Cry)
  • Nero (Devil May Cry)
  • Some Hollows (Bleach)
  • Ghost Rider (Marvel)
  • Blackheart (Marvel)
  • Mephisto (Marvel)
  • Dormammu (Marvel)
  • Zarathos (Marvel)
  • Azazel (Marvel)
  • Satannish (Marvel)
  • Belasco (Marvel)
  • Hollow Ichigo (Bleach) in their neo hollow form
  • Oga Tatsumi (Beelzebub)
  • Demons (Yu Yu Hakusho)
  • Hiei (Yu-Yu Hakusho)
  • Kurama (Yu-Yu Hakusho)
  • Mirajane Strauss (Fairy Tail)
  • Demons (Fairy Tail)
    • Etherious (Fairy Tail)
  • Rin Okumura (Blue Exorcist)
  • Jio (O-Parts Hunter/666 Satan)
  • Lucemon Shadowlord Mode (Digimon Frontier)
  • Jin Kazama (Tekken)
  • Kazuya Mishima (Tekken)
  • Asura (Soul Eater)
  • Hunson Abadeer (Adventure Time)
  • Demons (Buffy the Vampire Slayer, Angel)
  • Allen Francis Doyle (Angel)
  • Cordelia Chase (Buffy the Vampire Slayer, Angel)
  • Anya Jenkins (Buffy the Vampire Slayer)
  • Lorne (Angel)
  • Illyria (Angel)
  • Whistler (Angel)
  • Spawn (Spawn comics)
  • Duna (Ángel o Demonio)
  • Iris (Ángel o Demonio)
  • Alexia (Ángel o Demonio)
  • Graziel (Ángel o Demonio)
  • George Reed (Shadows of the Damned)
  • The Sisters Grim (Shadows of the Damned)
  • Scanty and Kneesocks (Panty and Stocking)
  • Elliot Thomas (Shadows of the Damned)
  • Justine Divalgelo (Shadows of the Damned)
  • Fleming (Shadows of the Damned)
  • Johnson (Shadows of the Damned)
  • Christopher (Shadows of the Damned)
  • Medusa (Kid Icarus Uprising)
  • Pandora (Kid Icarus Uprising)
  • Thanatos (Kid Icarus Uprising)
  • Hades (Kid Icarus Uprising)
  • Blade (Marvel)
  • Ultimo Excalibur (Ultimo X)
  • Demons (Charmed)
  • Cole Turner/Belthazor (Charmed)
  • Demons (Disgaea)
  • Lillith "Lily" Sullivan (Case 39)
  • Akuma/Gouki (Street Fighter)
  • Valtor (Winx Club)
  • Ulquiorra Cifer (Bleach) in they Resurrección: Segunda
  • Beranabus (The Demonata)
  • Demons (I, Frankenstein)
  • The Devil (Religion)
  • Demons (Religion)
  • Akuma (Street Fighter)
  • Demons (Supernatural)
  • Alec Abrams/Devilicus (Smallville)
  • Demons (Reaper)
  • Morgan (Reaper)
  • Devils (Highschool DxD)
  • Demons (The Mortal Instruments)
  • Apostles (Berserk)
  • Sadao Maou (Hataraku Maou-sama)
  • Shiro Ashiya (Hataraku Maou-sama)
  • Hanzo Urushihara (Hataraku Maou-sama)
  • Bill Cipher (Gravity Falls)
  • Sunset Shimmer (My Little Pony Equestria Girls); via the Element of Magic.
  • Empusa (Valkyrie Crusade)
  • Baphomet (Valkyrie Crusade)
  • Vepar (Valkyrie Crusade)
  • Astaroth (Valkyrie Crusade)
  • Demon Lord (Valkyrie Crusade)
  • Flu (Valkyrie Crusade)
  • Mephistopheles (Valkyrie Crusade)
  • Majin (Dragon Ball series)
  • Kobungo Inuta (Hakkenden: Eight Dogs of the East)
  • Genpachi Inukai (Hakkenden: Eight Dogs of the East)

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