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·The Mantell Incident (1948): First Officially Released Documents Describe "Large Metallic Object of Tremendous Size"
Cosmic Contact Archive

ALLEGED NON HUMAN SPECIES

30
SPECIES DOCUMENTED

From grassroots accounts and ancient texts, we catalog the entities most often described in encounter literature, urban legend, and disclosure testimony.

THIRTY-PLUS COMMONLY REPORTED BEINGS — NOT A DEFINITIVE LIST

Across thousands of contact accounts, certain entities appear again and again. The catalog below documents the most commonly alleged species — extraterrestrial, interdimensional, and terrestrial — drawn from reported accounts, folklore, and disclosure literature. This figure is not authoritative or exhaustive: more entities are described in the broader literature. None are scientifically confirmed.

CLASSIFICATION SYSTEM

BIOLOGICAL TYPES

  • Humanoid

    Nordics, Pleiadians

  • Insectoid

    Mantids, Ant Collectives

  • Reptilian

    Draconians, Reptoids

ORIGIN THEORIES

  • Star Systems

    Zeta Reticuli, Sirius, Pleiades

  • Interdimensional

    Light Beings, Shadow Beings

  • Earth-Native

    Cryptoterrestrials, Inner Earth

BEHAVIORAL ROLES

ObserversManipulatorsGuidesExperimenters

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Catalog Credibility Overview

30 entries
NO EVIDENCE1447%
ANECDOTAL1240%
DISPUTED413%

30 species documented — click any card to open full file

common ufoanecdotal
Small Greys
Zeta Reticuli (claimed) — based on star map linked to the Hill case

Small Greys

TelepathicLarge black eyesGrey skin

Standing 3–4 feet tall with enlarged hairless cranium, oversized black almond-shaped eyes, minimal nose, thin slit-like mouth, and slender limbs. Bodies described as biologically s

humanoidOPEN FILE →
common ufoanecdotal
Tall Greys
Zeta Reticuli (claimed) — shared origin with Small Greys in abduction narratives

Tall Greys

6–7 ft tallSupervisory roleEnhanced telepathy

A larger and more imposing variant of the Grey archetype, typically standing between 6 and 7 feet tall. They share the same core anatomical features as Small Greys but appear more

humanoidOPEN FILE →
common ufoanecdotal
Hybrid Greys
Earth / Zeta Reticuli hybridization program (claimed)

Hybrid Greys

Mixed featuresEmotional affectHuman integration

Described as intermediate forms between humans and Greys, with significant variation depending on the reported stage of hybridization. More human in appearance than pure Greys — wi

hybridOPEN FILE →
common ufonone
Alpha Draconians
Alpha Draconis (Thuban) — Draco constellation (claimed)

Alpha Draconians

Scaled skinGalactic empireClaimed Ancient Earth Presence

Large upright reptilian beings standing 7–12 feet, described as the apex authority within a multi-species extraterrestrial hierarchy. Reported features include thick scaled skin (o

reptilianOPEN FILE →
common ufonone
Reptoid Hybrids
Earth / Alpha Draconis hybridization narratives (claimed)

Reptoid Hybrids

Claimed ShapeshiftingReported Human DisguiseInfiltration Narratives

Reptilian-human hybrids described as beings capable of appearing fully human while retaining a reptilian base form. Central to theories about covert infiltration of institutions, g

hybridOPEN FILE →
common ufodisputed
Pleiadians
Pleiades star cluster — approximately 400–450 light-years from Earth (claimed)

Pleiadians

Human-likeReported Blonde HairTelepathic

Tall, human-like beings nearly indistinguishable from Northern Europeans, typically ranging from 5.5 to 7 feet tall with symmetrical features, light-colored hair, and blue, green,

humanoidOPEN FILE →
common ufonone
Venusians
Venus (historical claim) — Before space exploration, Venus was believed by some to possibly support life. Modern science has since confirmed surface temperatures of ~460°C with crushing atmospheric pressure, making the described physical life impossible.

Venusians

Human appearanceSpace BrothersWarning messengers

Venusians are among the earliest alien types described in modern UFO culture. Unlike later narratives involving abductions or experiments, these beings were portrayed as benevolent

humanoidOPEN FILE →
common ufoanecdotal
Mantis Beings
Unknown / off-world (claimed)

Mantis Beings

Mantis-like features6–8 ft tallTelepathic

Towering insectoid entities resembling praying mantises, standing 6–8 feet. Reported in deep abduction accounts as overseers or surgeons — the most intelligent and commanding being

insectoidOPEN FILE →
common ufoanecdotal
Ant Beings
Unknown / collective hive intelligence

Ant Beings

Collective intelligenceAnt-like featuresUnderground association

Smaller insectoid beings functioning in highly coordinated collectives. Associated with Hopi "Ant People" legend, who allegedly sheltered humanity underground during a catastrophic

insectoidOPEN FILE →
common ufoanecdotal
Tall Whites
Reported off-world (precise location undisclosed in accounts)

Tall Whites

Pale skinElongated formExtended lifespan

Elongated pale humanoids with large blue or pink eyes and extended lifespans reported to span centuries. Charles Hall's multi-year firsthand account describes an ongoing, sometimes

humanoidOPEN FILE →
common ufoanecdotal
Human-Grey Hybrids
Earth / ongoing genetic program

Human-Grey Hybrids

Mostly human featuresEmotional capacityIntegration narrative

More human-presenting than earlier described hybrids, raised or integrated into human society. Some accounts describe experiencers recognizing hybrid children aboard craft as their

hybridOPEN FILE →
lesser known ufodisputed
EBEN
Serpo — planet in Zeta Reticuli system (claimed)

EBEN

Roswell connectionExchange programHumanoid

Extraterrestrial Biological Entities allegedly recovered from the 1947 Roswell crash and subsequently identified as originating from Serpo, a planet in the Zeta Reticuli binary sta

humanoidOPEN FILE →
lesser known ufonone
Blue Avians
Sphere-Being Alliance — claimed higher-dimensional origin beyond physical star systems

Blue Avians

Bird-likeBlue feathersTelepathic

Eight-foot tall bird-like humanoids covered in indigo-blue feathers with large, vivid blue eyes and a distinctly avian facial structure. Claimed to communicate exclusively through

humanoidOPEN FILE →
lesser known ufonone
Arcturians
Arcturus — brightest star in the northern celestial hemisphere, approximately 36 light-years from Earth

Arcturians

Advanced consciousnessHealing roleLuminous

Highly advanced beings of light or luminous humanoids from the Arcturus star system. Described as among the most spiritually evolved civilizations in the galaxy, functioning as hea

humanoidOPEN FILE →
lesser known ufonone
Andromedans
Andromeda Galaxy — approximately 2.5 million light-years from Earth (claimed)

Andromedans

Human-likePeacefulGalactic council

Human-like beings from the Andromeda Galaxy described as peaceful explorers and cosmic advisors. Collier's accounts outline a complex galactic political landscape in which Andromed

humanoidOPEN FILE →
lesser known ufodisputed
Sirians
Sirius binary star system — 8.6 light-years from Earth; the brightest star in the night sky

Sirians

Ancient connectionAquatic traitsEgyptian link

Advanced beings linked to the Sirius binary system. Associated with ancient Egyptian deities and the Dogon people's documented astronomical knowledge of Sirius B, which predated it

humanoidOPEN FILE →
lesser known ufonone
Lyrans
Lyra constellation — a small northern constellation containing the star Vega, approximately 25 light-years from Earth (claimed)

Lyrans

Ancient progenitor raceGalactic war survivorsSeed race

Described as one of the oldest humanoid civilizations in the galaxy and the progenitors of multiple galactic species including Pleiadians, Sirians, and Andromedans. The Lyran Wars

humanoidOPEN FILE →
lesser known ufonone
Orions
Orion constellation — Rigel, Betelgeuse, and Mintaka systems most commonly cited (claimed)

Orions

Divided factionsService-to-selfPyramid alignment link

A divided civilization with both benevolent and hostile factions operating across the Orion star systems. In the Law of One material, Orion-aligned beings act as cosmic antagonists

humanoidOPEN FILE →
ancient mythologydisputed
Annunaki
Nibiru — claimed 12th planet / Mesopotamian myth

Annunaki

Sumerian mythologyGenetic engineeringNibiru origin

Sumerian sky deities reinterpreted by Zecharia Sitchin as extraterrestrial colonizers from a 12th planet called Nibiru. Claimed to have genetically engineered Homo sapiens as a lab

humanoidOPEN FILE →
ancient mythologynone
Nephilim
Biblical / Hebrew texts

Nephilim

Giant statureHybrid offspringPre-flood civilization

Offspring of "sons of God" and human women in biblical tradition. Interpreted in UFO literature as human-extraterrestrial hybrids — giants of great intelligence and power inhabitin

hybridOPEN FILE →
ancient mythologynone
The Watchers
Heavenly realm (biblical cosmology)

The Watchers

Forbidden knowledgeDescended beingsTeachers of arts

Divine beings who descended to Earth and taught humanity forbidden knowledge — metallurgy, astrology, herbalism, and weaponry. Their transgression in taking human partners led to t

humanoidOPEN FILE →
ancient mythologynone
Egyptian Star Beings
Sirius / Orion (ancient astronaut claim)

Egyptian Star Beings

Pyramid buildersAstronomical knowledgeRa / Osiris / Thoth

Deities such as Ra, Osiris, and Thoth reframed as advanced extraterrestrial visitors who seeded Egyptian civilization with knowledge of astronomy, mathematics, and precision archit

humanoidOPEN FILE →
ancient mythologynone
Devas & Asuras
Higher realms (Vedic cosmology)

Devas & Asuras

Vimanas (aerial vehicles)Advanced weaponryVedic cosmology

Advanced beings from Vedic tradition described as piloting aerial vehicles called vimanas and wielding devastating weapons whose descriptions have been compared to modern thermonuc

unknownOPEN FILE →
interdimensionalanecdotal
Light Beings
Non-physical / higher dimensional

Light Beings

Non-physicalLuminousTelepathic knowledge transfer

Non-physical luminous entities reported in near-death experiences, deep meditation, and contact accounts across all cultures. Described as radiating unconditional acceptance and tr

energy-basedOPEN FILE →
interdimensionalanecdotal
Shadow Beings
Unknown / proposed interdimensional

Shadow Beings

Dark silhouetteNo featuresSleep paralysis link

Dark humanoid silhouettes with no discernible features. Reported standing in doorways or at the periphery of vision. Associated with sleep paralysis, dread, and a strong sense of s

energy-basedOPEN FILE →
interdimensionalanecdotal
Tall Blacks
Unknown / proposed interdimensional

Tall Blacks

8–10 ft tallDark formUFO association

Similar to Shadow Beings but significantly taller (8–10 feet) and linked specifically to UFO close encounters rather than purely paranormal events. Witnesses consistently report an

energy-basedOPEN FILE →
interdimensionalanecdotal
Machine Elves
DMT hyperspace — proposed non-physical dimension accessible through endogenous or exogenous dimethyltryptamine

Machine Elves

Self-transformingLanguage beingsDMT state

Self-transforming, jeweled entities encountered consistently across independent DMT experiences. Thousands of accounts — produced globally without coordination — describe beings th

unknownOPEN FILE →
earth basednone
Cryptoterrestrials
Earth — proposed ancient, parallel, or post-human civilization coexisting with modern humanity

Cryptoterrestrials

Earth-nativeHidden civilizationUAP source hypothesis

A serious alternative hypothesis proposing that some or all UAP activity originates not from outer space but from an ancient, hidden intelligence native to Earth — perhaps a pre-hu

unknownOPEN FILE →
earth basednone
Inner Earth Beings
Earth interior — proposed vast subterranean network of caverns, tunnels, and underground cities beneath the planetary surface

Inner Earth Beings

Underground civilizationAgarthaPolar entry points

Advanced humanoid civilizations described as inhabiting vast underground networks beneath Earth's surface — sometimes identified with the mythological city of Agartha or Shambhala,

humanoidOPEN FILE →
earth basedanecdotal
Aquatic Entities
Earth oceans — Unidentified Submerged Objects (USOs)

Aquatic Entities

Aquatic environmentUSO associationExtreme speed

Intelligent beings associated with Earth's oceans and the USO phenomenon. Accounts include objects observed entering and exiting water at extreme velocities with no acoustic signat

unknownOPEN FILE →