A concept originating in Hinduism, an avatar (/ˈævəˌtɑr, ˌævəˈtɑr/;[1] Hindustani: [əʋˈt̪aːr] from Sanskrit अवतार avatāra "descent") is a deliberate descent of a deity to Earth, or a descent of the Supreme Being (e.g., Vishnu for Vaishnavites), and is mostly translated into English as "incarnation", but more accurately as "appearance" or "manifestation".

Within the Cthulhu Mythos, an avatar generally holds the same meaning. An Elder God, Great Old One, or an Outer God may decide to appear in a physical or spectral manifestation to humans or their inhuman brethren. The reasons are varied for which an Eldrich entity might need to manifest an avatar. Most deities and entities of power in the Cthulhu Mythos do not or cannot exist in mundane, three-dimensional space. Alternatively, they may be otherwise separated by vast distances of space, sequestration in a secret location, or by virtue of living in another universe or dimension. Manifesting an avatar is often the only way such a being can communicate and interact with its worshippers or have physical agency in a particular location.

An avatar is exponentially weaker but requires a considerable effort of will on the part of its deity to manifest. Avatars may be capable of being harmed, killed or confounded by mortals, though to a cosmic Eldrich entity, such interference is less than the buzz of a fly.

List by deityEdit


  • Māna-Yood-Sushāī (ADJ: Lord Dunsany, The Gods of Pegāna, Time and the Gods)
  • Xada-Hgla (EXP: Ramsey Campbell, "The Insects from Shaggai")


  • Living Flame of Deepest Black (Günther Dambachmair, "The Secret of Knossos")


  • B'Moth (ADJ: Bertram Russell, "The Scourge of B'Moth", CIRCLE: "The Guardian of the Book" [Henry Hasse])
  • Chorazin (HPL: "The Call of Cthulhu", EXP: Cthulhu Now: "Dreams Dark and Deadly (RPG scensario)" [Michael Szymanski])
  • Father-Of-All-Sharks (EXP: Malleus Monstrorum)


  • Sacred Light (Bruce Ballon, "The Truth Shall Set You Free")


  • Emerald Lama (EXP: Michael Dziesinski, Secrets of Japan (RPG supplement))
  • Feaster from Afar (EXP: Joseph Payne Brennan, "The Feaster from Afar")
  • King in Yellow (CIRCLE: James Blish, "More Light")


  • Death-Walker (Joseph Payne Brennan, "Jendick's Swamp")
  • Snow-Thing (AWD: "The Snow-Thing")


Having a thousand face, he possesses 999 avatars.

  • Ahtu (David Drake, "Than Curse The Darkness")
  • Aku-Shin Kage, the Dark Warlord (EXP: Michael Dziesinski, Secrets of Japan (RPG supplement))
  • Baron Samedi (Fred Van Lente, The New Orleans Guidebook)
  • Beast (HPL: "The Rats in the Walls")
  • Black Bull (Steffen Schütte, "Im Zeichen des Stiers")
  • Black Demon (Doug Lyons, "One In Darkness")
  • Black Lion (Stanley C. Sargent, "Nyarlatophis, A Fable of Ancient Egypt")
  • Black Man (HPL: "The Dreams in the Witch House")
  • Black Pharaoh (Larry DiTillio and Lynn Willis, Masks of Nyarlathotep (RPG scenario))
  • Black Wind (Daniel Harms, Encyclopedia Cthulhiana)
  • Bloated Woman (Larry DiTillio and LynnWillis, Masks of Nyarlathotep (RPG scenario))
  • Bloody Tongue (Lynn Willis, Call of Cthulhu (Role-Playing Game) 5.5)
  • Crawling Mist (Brian Lumley, Elysia)
  • Dark Demon (CIRCLE: Robert Bloch, "The Dark Demon")
  • Dweller in Darkness (AWD: "The Dweller in Darkness")
  • Effigy of Hate (Geoff Gillan, "Regiment of Dread")
  • Faceless God (CIRCLE: "The Faceless God")
  • Floating Horror (A. A. Attanasio, "The Star Pools")
  • Green Man (David Hallett, "Eyes for the Blind")
  • Halloween Man
  • Haunter of the Dark (HPL: "The Haunter of the Dark")
  • High Priest Not to be Described/Thing in the Yellow Mask (HPL: The Dream-Quest of Unknown Kaddath, EXP: Daniel Harms, Encyclopedia Cthulhiana)
  • Horned Man (ADJ: Sir James Frazer, The Golden Bough)
  • Host (A. A. Attanasio, "The Star Pools")
  • Human form (HPL: The Dream-Quest of Unknown Kadath)
  • Jack O'Lantern (ADJ: W. Haden Blackman, The Field Guide to North American Monsters, EXP: Malleus Monstrorum)
  • Johnny Carcosa (EXP: Alan Moore, "The Courtyard", Neonomicon, Providence)
  • Kokopelli (Donald R. Burleson, "Kokopelli")
  • Kruschtya Equation (HPL: "Nyarlathotep", EXP: Malleus Monstrorum)
  • Lrogg (Ramsey Campbell, "The Insects from Shaggai")
  • Messenger of the Old Ones (Joseph Payne Brennan, "The Willow Platform")
  • Nyarlatophis (Stanley C. Sargent, "Nyarlatophis, A Fable of Ancient Egypt")
  • Pazzuzu (EXP: Ian Winterton, "The Priestess (RPG scenario)")
  • Pool of Shadow (John Diaper, Bob Gallagher, Steve Rawling, Ed Wimble, "The Arkham Evil")
  • Queen in Red (ADJ: The Penguin Encyclopedia of Horror and the Supernatural, EXP: Malleus Monstrorum)
  • Set (Richard L. Tierney, "The Worm of Urakhu")
  • Shugoran (T. E. D. Klein, "Black Man with a Horn")
  • Skeletal Horror (William Hamblin, "Thoth's Dagger")
  • Skinless One (Geoff Gillan, "XV. The Fog Lifts", Horror on the Orient Express)
  • Small Crawler (Larry DiTillio and Lynn Willis, Masks of Nyarlathotep)
  • Tezcatlipoca (Sam Johnson, A Resection of Time)
  • Thoth (ADJ: Sir James Frazer, The Golden Bough)
  • Tick Tock Man (Scott David Aniolowski, "I Dream of Wires")
  • Wailing Writher (HPL: "Nyarlathotep", EXP: Kevin A. Ross, Escape From Innsmouth)
  • Wicker Man (ADJ: Sir James Frazer, The Golden Bough)


  • Great God Pan (ADJ: Arthur Machen, "The Great God Pan")
  • He Who Walks Behind the Rows (Kevin A. Ross, "Dark Harvest")
  • Magna Mater (EXP: Delta Green: Countdown (RPG supplement))
  • Keeper of the Moon-Lens (Ramsey Campbell, "The Moon-Lens")


  • Madam Yi (Walter C. DeBill, Jr., "Where Yidhra Walks")
  • Y'hath (Walter C. DeBill, Jr., "Where Yidhra Walks")
  • Xothra (Walter C. DeBill, Jr., "Predator")


  • Aforgomon (CIRCLE: Clark Ashton Smith, "The Chain of Aforgomon")
  • Mara/The Dweller on the Threshold (EXP: Michael Dziesinski, Secrets of Japan (RPG supplement))
  • Tawil at'Umr (HPL: "Through the Gates of the Silver Key")