The Call of Cthulhu Monsters, Characters & Lore: The Mythos Decoded
When H.P. Lovecraft created The Call of Cthulhu in 1926, he did not merely assemble a cast of investigators and monsters. He pioneered an entirely new mythological framework for horror—one where the true antagonist is not an evil demon seeking human souls, but the cold, incomprehensible architecture of the universe itself.
At the apex of this pantheon sits Great Cthulhu—an alien priest-titan who fell from the dark stars millions of years before humanity crawled out of the primeval ooze. Surrounding him is an intricate constellation of mortal investigators, mad artists, cultists, and sailors who unwittingly brush against the edges of cosmic reality: from the rational skeptic Francis Wayland Thurston and the visionary sculptor Henry Anthony Wilcox to the unyielding police inspector John Raymond Legrasse and the courageous Norwegian second mate Gustaf Johansen.
Furthermore, The Call of Cthulhu established the foundational lore of the Cthulhu Mythos: the Great Old Ones, the non-Euclidean corpse-city of R’lyeh, the deathless cult, and the dreaded grimoire Necronomicon penned by the mad Arab Abdul Alhazred.
Whether you are preparing a literary analysis of early twentieth-century pulp fiction, running a Call of Cthulhu roleplaying campaign, or diving into Lovecraftian lore for the first time, this comprehensive guide decodes every character, entity, and cosmic concept in the story.
⚡ The Call of Cthulhu Cast & Lore: At a Glance
- The Cosmic Deity: Great Cthulhu — High Priest of the Great Old Ones; a mountain-sized entity combining the anatomy of an octopus, dragon, and distorted human caricatured in cosmic scale.
- The Mythic Pantheon: The Great Old Ones — Extraterrestrial entities who ruled Earth across geological eons; neither living nor dead, preserved in stone tombs by ancient geometry.
- The Sunken Necropolis: R'lyeh — A cyclopean continent in the South Pacific built from non-Euclidean angles where gravity and visual perception warp.
- The Forensic Investigator: Francis Wayland Thurston — Anthropologist narrator who pieces together the fragmented evidence and realizes his own life is marked for death.
- The Dream-Artist: Henry Anthony Wilcox — A sensitive Rhode Island sculptor who channels Cthulhu's telepathic broadcasts into clay during feverish night trances.
- The Swamp Detective: Inspector John Raymond Legrasse — A practical New Orleans officer who raids the depraved bayou cult and captures the ancient greenish soapstone statuette.
- The Brave Mariner: Gustaf Johansen — Norwegian second mate who lands upon the risen city of R'lyeh and rams Cthulhu head-on with a steam yacht to survive.
🐙 1. Great Cthulhu: The High Priest of the Old Ones
Great Cthulhu is arguably the most famous monster in modern literary history. However, popular culture often mischaracterizes him as a giant green demon or a sea monster like the Kraken. In Lovecraft’s original text, Cthulhu’s nature is vastly more alien, cosmic, and terrifying.
+-------------------------------------------------------------------------------+
| THE ANATOMY & NATURE OF GREAT CTHULHU |
+-------------------+-----------------------------------------------------------+
| MORPHOLOGICAL | TEXTUAL DESCRIPTION & ALIEN BIOLOGY |
| FEATURE | |
+-------------------+-----------------------------------------------------------+
| The Head | A pulpy, mass of tentacles resembling an octopus or squid |
| | with feelers writhing independently; no visible mouth. |
+-------------------+-----------------------------------------------------------+
| The Body | A rubbery, squamous (scaly) torso of colossal size |
| | described as a "mountain that walked or stumbled." |
+-------------------+-----------------------------------------------------------+
| The Wings | Rudimentary, bat-like wings folded across the back; used |
| | for drifting through interstellar space rather than flight.|
+-------------------+-----------------------------------------------------------+
| The Consistency | Amorphous, gelatinous, and semi-fluid matter; when severed|
| | by Johansen's ship, its flesh reforms immediately. |
+-------------------+-----------------------------------------------------------+
| The Function | Not a god in human terms, but the High Priest whose role |
| | is to preserve the cosmic spell and awake his brethren. |
+-------------------+-----------------------------------------------------------+Biology of the Stars
Lovecraft emphasizes that Cthulhu is composed of matter foreign to Earth’s periodic table:
- He does not breathe air, eat food, or bleed normal blood.
- When struck by the steel prow of the steam yacht Alert, Cthulhu’s head does not shatter like bone; it bursts open like an exploded jellyfish, releasing a foul, gaseous stench of cosmic decay before immediately knitting itself back together.
- He exists in a state of suspended animation that human language cannot define: “They were not composed altogether of flesh and blood. They had shape… but that shape was not made of matter. When the stars were right, They could plunge from world to world through the sky; but when the stars were wrong, They could not live.”
Telepathic Communication & The Dream Call
Because Cthulhu is trapped beneath millions of tons of seawater in sunken R’lyeh, water acts as an acoustic and mental insulator. However, when tectonic movements push the city’s towers above the surface—as occurred in March 1925—Cthulhu’s subconscious dreams broadcast across the globe.
He does not speak in human words; his thoughts wash over the world as primordial, sensory dread. Ordinary people feel only bad dreams, but individuals with refined nervous systems (poets, sculptors, painters, and mystics) receive the telepathic signal with blinding intensity, experiencing manic hallucinations of R’lyeh’s dripping masonry.
🏛️ 2. The Great Old Ones: The True Masters of Earth
The Great Old Ones represent the core concept of Lovecraft’s cosmic indifference:
+-------------------------------------------------------------------------------+
| THE DOCTRINE OF THE GREAT OLD ONES |
+-----------------------------------+-------------------------------------------+
| HUMAN MISCONCEPTION | COSMIC REALITY |
+-----------------------------------+-------------------------------------------+
| Evil demons who want human souls | Vast interstellar aliens completely |
| and demand blood sacrifices. | indifferent to human existence. |
+-----------------------------------+-------------------------------------------+
| Gods that can be bargained with | Entities whose casual arrival will crush |
| through prayers and good deeds. | human civilization like insects. |
+-----------------------------------+-------------------------------------------+
| Superstition from ancient folklore| Historical fact verified by archaeology, |
| and bedtime fairy tales. | geology, and deep oceanic cartography. |
+-----------------------------------+-------------------------------------------+The History of the Old Ones
According to the revelations extracted from Old Castro in the Louisiana swamps:
- The Star-Fall: The Old Ones filtered down from the dark stars to Earth hundreds of millions of years ago, long before the emergence of mammalian life.
- The Golden Age: They built cyclopean basalt cities across Antarctica and the Pacific Ocean. They created the first biological organisms on Earth—including the ancestors of humanity—either as slaves or as a careless biological byproduct.
- The Slumber: Shifts in planetary magnetic fields and the positions of the stars broke their dominion. A massive cataclysm plunged their capital continent of R’lyeh beneath the waves. Ancient spells of preservation cast by Cthulhu protect their bodies in a death-like slumber until the celestial spheres return to their correct alignment.
- The Awakening: When the stars come right, the human cult will open the sunken tombs from the outside. Cthulhu and his brethren will awaken, and human civilization—with its concepts of law, morality, and justice—will be permanently extinguished in a global frenzy of ecstasy, madness, and carnage.
🔍 3. The Human Investigators: Mortals Facing the Abyss
+---------------------------------------------------------------------------------------+
| THE HUMAN TRIANGLE OF INVESTIGATORS |
+----------------------+--------------------------+-------------------------------------+
| CHARACTER | SOCIAL ROLE | INVESTIGATIVE CONTRIBUTION |
+----------------------+--------------------------+-------------------------------------+
| Francis Wayland | Anthropologist & | The compiler; correlates the three |
| Thurston | Narrator | manuscripts and uncovers the truth. |
+----------------------+--------------------------+-------------------------------------+
| Professor George | Professor of Semitic | Identifies the Wilcox bas-relief; |
| Gammell Angell | Languages at Brown Univ. | launches global dream survey; slain.|
+----------------------+--------------------------+-------------------------------------+
| Inspector John | New Orleans Police | Raids the 1907 bayou cult; captures |
| Raymond Legrasse | Detective | the stone statuette; questions Castro|
+----------------------+--------------------------+-------------------------------------+
| Gustaf Johansen | Norwegian Second Mate | Encounters R'lyeh; rams Cthulhu; |
| | (Schooner Emma) | authors the maritime death diary. |
+----------------------+--------------------------+-------------------------------------+
| Henry Anthony | RISD Sculptor | Channels Cthulhu's dreams into clay |
| Wilcox | & Sensitive Mystic | during the global telepathic surge. |
+----------------------+--------------------------+-------------------------------------+Francis Wayland Thurston: The Correlated Mind
Thurston is the protagonist through whose eyes we experience the story. Unlike typical action heroes, Thurston never fires a gun or confronts a monster directly. His conflict is entirely intellectual:
- He begins as a complacent, rational academic who looks down upon his great-uncle’s occult papers as the harmless eccentricities of an old man.
- Step by step, through rigorous anthropological and journalistic deduction, Thurston connects the dots between Providence, Louisiana, and the South Pacific.
- His tragedy is that he succeeds. By uncovering the complete picture, he destroys his own peace of mind forever. Realizing that the cult is methodically assassinating anyone who learns the secret, Thurston knows his days are numbered, leaving his papers in a locked box to warn future generations.
Inspector John Raymond Legrasse: The Practical Cop
Inspector Legrasse is a breath of fresh air in the narrative: a tough, no-nonsense Southern lawman who cares nothing for cosmic philosophy and everything about upholding the law.
When women and children disappear in the Louisiana swamps, Legrasse straps on his revolver, gathers nineteen officers, and plunges into alligator-infested bayous where even local Cajun guides fear to tread. His raid on the Halloween cult gathering of 1907 is executed with military precision. Legrasse’s survival demonstrates that unshakeable common sense and courage can resist the psychological dread that drives artists and academics mad.
Gustaf Johansen: The Man Who Struck a God
Johansen is a simple, stoic Scandinavian sailor who found himself thrust into an ancient alien nightmare.
When the rest of his crew went mad, were crushed by Cthulhu, or vanished into R’lyeh’s impossible angles, Johansen kept his wits. Reaching the engine room of the steam yacht Alert, Johansen did something no mortal had ever accomplished: he steered a ship head-on into an ancient alien deity at maximum steam pressure. His desperate bravery bought him enough time to escape, though the psychic trauma broke his companion Briden and eventually claimed Johansen’s life on the streets of Oslo.
🌑 4. The Cthulhu Cult: Worshippers in the Shadows
The Cthulhu Cult is not a centralized organization with formal temples, but a decentralized, global network of secret cells spanning continents and centuries:
+-------------------------------------------------------------------------------+
| THE GLOBAL REACH OF THE CTHULHU CULT |
+-------------------+-----------------------------------------------------------+
| REGION | OBSERVED CULT ACTIVITY & CHARACTERISTICS |
+-------------------+-----------------------------------------------------------+
| Louisiana Bayous | Over a hundred mixed-race outcasts, swamp squatters, and |
| (USA) | sailors dancing naked around a monolith with blood rites. |
+-------------------+-----------------------------------------------------------+
| Western Greenland | Degenerate coastal Eskimos chanting the R'lyehan liturgy |
| (Arctic) | before the winged greenish soapstone statuette in 1860. |
+-------------------+-----------------------------------------------------------+
| South Pacific | Armed cultist sailors aboard the pirate steam yacht Alert,|
| (New Zealand) | protecting the ocean approaches to sunken R'lyeh. |
+-------------------+-----------------------------------------------------------+
| Mountains of China| The deathless immortal leaders residing in the peaks of |
| (Asia) | western China, directing the global network in secret. |
+-------------------+-----------------------------------------------------------+The Immortal Masters of China
During his interrogation by Legrasse, Old Castro revealed that while local cells consist of crude, violent outcasts, the true intellectual directors of the cult are “deathless Chinese masters” residing in the unexplored mountain ranges of Western China. These immortal priests communicate telepathically with Cthulhu and coordinate the silent assassination of anyone who threatens to expose the Old Ones before the stars align.
📜 5. The Necronomicon & Occult Lore
Lovecraft weaves the famous grimoire The Necronomicon (originally titled Al Azif, written in Damascus around 730 AD by the “mad Arab” Abdul Alhazred) into the fabric of the story.
In The Call of Cthulhu, Thurston remembers the famous, paradoxical couplet from the Necronomicon that summarizes the condition of the Great Old Ones:
“That is not dead which can eternal lie,
And with strange aeons even death may die.”
This couplet reveals that the Old Ones do not experience time, mortality, or biological decay as humans do. What human science classifies as “death” is merely an eons-long state of dormancy awaiting the cyclical realignment of the cosmos.
❓ Frequently Asked Questions (FAQ)
Is Cthulhu an alien or a god?
Cthulhu is an extraterrestrial alien entity of godlike power. While human cultists worship him as a deity, Lovecraft’s text makes clear that Cthulhu is a mortal creature (in cosmic terms) who traveled to Earth from the dark stars with his spawn millions of years ago. He is the High Priest of his race, not a supernatural divine creator.
Can Cthulhu be killed?
Within the canon of Lovecraft’s story, Cthulhu cannot be killed by conventional physical means. When Johansen rammed the steam yacht through Cthulhu’s head, the severed tissue reconstituted itself immediately. The Old Ones exist partially outside three-dimensional space and do not experience biological death.
Where is the sunken city of R'lyeh located?
Lovecraft provides precise maritime coordinates in the story: Latitude 47° 9’ S, Longitude 126° 43’ W in the South Pacific Ocean. This location is remarkably close to the real-world Point Nemo (the Oceanic Pole of Inaccessibility), the point on Earth furthest from any landmass.
Who killed Professor Angell and Gustaf Johansen?
Both Professor Angell and Gustaf Johansen were assassinated by operatives of the Cthulhu Cult to prevent their findings from becoming public. Angell was shoved by a nautical-looking sailor near the Providence docks, and Johansen was killed by falling timber dropped from a ship’s crane in Oslo—both staged to appear as tragic accidents.
What does Cthulhu's name mean and how is it pronounced?
Lovecraft stated that the name “Cthulhu” was an imperfect human attempt to pronounce an alien syllable produced by vocal organs totally unlike our own. He suggested pronouncing it gutturally as “Khlûl’-hloo” or “Cluh-luh”, with the tongue placed firmly against the roof of the mouth. In modern popular culture, it is commonly pronounced “Kuh-THOO-loo”.
📚 Related Articles & Mythos Guides
Looking for an overarching analysis of cosmic horror and Lovecraft’s life? Explore our master The Call of Cthulhu Guide.
🐙 Read the Definitive Annotated Edition of The Call of Cthulhu
Experience the foundational masterpiece of cosmic horror with every archaic word, non-Euclidean concept, and historical document decoded:
- ✅ Complete Authoritative 1928 Text — Unabridged and uncut from the original Weird Tales publication
- 🗺️ R’lyeh Coordinates & Pacific Ocean Maps — Understand Point Nemo and the geography of the South Pacific
- 📜 Historical Context Cards — Learn about the 1908 St. Louis symposium and the 1907 New Orleans bayou raids
- 🌑 The Cthulhu Mythos Encyclopedia — Trace how Lovecraft built the pantheon of the Great Old Ones
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