Alien Compendium · Entities

Classic Aliens, Contactee Beings and Famous Case Entities

This page covers the beings that define the popular idea of an alien. It starts with the types that turn up again and again in abduction and contactee reports, such as Greys, Nordics and Reptilians. It then moves to single named cases, including the Flatwoods Monster and the Kelly-Hopkinsville goblins, and to the channelled "space family" groups that contactees described from the 1950s onward.

Every entry here is a reported or claimed being. None has been confirmed by physical evidence. Each write-up says where the description first appeared, so you can judge how old the story is and how much of it comes from fiction.

35 entries in 3 sections

Classic Extraterrestrials

Three grey aliens in blue uniforms aboard a spacecraft with blue monitors
1

Grey Aliens (Zeta Reticulans)

First documented in the Betty and Barney Hill abduction case of 1961, though similar beings appeared in earlier science fiction. Greys are the most commonly reported alien type, described as 3-4 feet tall with grey skin, oversized heads, large black almond-shaped eyes, and small slit mouths. They allegedly hail from the Zeta Reticuli star system, based on a star map Betty Hill reproduced under hypnosis. Associated with abduction phenomena, medical examinations, and reproductive experiments. Featured prominently in 'Close Encounters of the Third Kind' (1977), 'The X-Files' (1993-2018), and countless other media. The archetypal 'alien' in modern culture.

Tall grey alien leader with smaller greys flanking in a dark chamber
2

Tall Greys

A variant of the standard Grey, reported as 5-7 feet tall and often described as supervisors or leaders directing smaller Greys during abductions. First distinguished in 1980s abduction research, particularly through the work of Budd Hopkins and David Jacobs. They display more pronounced features and are sometimes described as more emotionally expressive. Occasionally reported wearing robes or cloaks. Their role appears hierarchical, suggesting a complex Grey social structure.

Blonde woman in silver bodysuit before a flying saucer at forest mountain sunset
3

Nordic Aliens (Space Brothers/Pleiadians)

First appeared in the 1950s contactee movement, most famously through George Adamski's 1952 Desert Center encounter with 'Orthon from Venus.' Described as tall (6-7 feet), beautiful humanoids with blonde hair, blue eyes, and pale skin, resembling idealised Scandinavians. Associated with messages of peace, spiritual evolution, and warnings about nuclear weapons. Swiss contactee Billy Meier claimed ongoing contact with Pleiadians since 1975, particularly 'Semjase.' Their benevolent nature contrasts with the clinical Greys.

Muscular reptilian warrior in armor with horned scaled head and fanged grin
4

Reptilians (Draconians/Lizard People)

First appeared in Robert E. Howard's 1929 fiction and entered ufology through contactee accounts in the 1960s. Popularised globally by David Icke from 1999 onwards. Described as 6-8 feet tall humanoid reptiles with green or brown scales, vertical slit pupils, and muscular builds. Allegedly originate from the Draco constellation and are associated with underground bases, shape-shifting abilities, and control of human elites. The Lacerta Files (1999) purport to be interviews with a female Reptilian. Feature in 'V' (1983) and 'They Live' (1988).

Green mantis insectoid with faceted emerald eyes and raptor forelimbs in a ribbed portal
5

Mantis Beings (Insectoids)

Reported in abduction accounts from the 1970s onwards, often working alongside Greys. Described as 6-8 feet tall praying mantis-like beings with triangular heads, large compound eyes, and thin limbs. Often depicted as overseers or spiritual guides during abduction experiences, displaying apparent empathy. Some experiencers describe them as ancient beings predating other species. Associated with healing, consciousness expansion, and deep psychological examination.

Three identical bald pale mannequin-like humanoids with pink eyes in grey uniforms
6

Tall Whites

Documented by Charles Hall, a former US Air Force weather observer, who claimed encounters at Nellis Air Force Base in Nevada during the 1960s. Described as 5-7 feet tall with chalk-white skin, platinum blonde hair, large blue eyes, and extremely thin frames. Hall described them as having a fragile appearance and wearing specialised suits in Earth's atmosphere. Allegedly have an agreement with the US government and maintain a base near Nellis. Published in Hall's 'Millennial Hospitality' book series.

Blue feathered avian humanoid with hooked beak, jeweled gold collar, and spread wings
7

Blue Avians

Emerged in modern UFO discourse through Corey Goode's 2015 Cosmic Disclosure testimony. Described as 8-foot-tall humanoid birds with blue or indigo feathers, beak-like faces, and advanced telepathic abilities. Associated with the 'Sphere Being Alliance' and alleged Secret Space Program disclosures. Described as spiritually evolved beings promoting the 'Law of One' philosophy. Their emergence coincides with increased interest in 'ascension' narratives within the UFO community.

Blue-grey alien with mushroom-shaped cranium containing a starfield, in a purple hooded robe
8

Arcturians

First appeared in Edgar Cayce's channelled readings in the 1930s-40s, with Arcturus described as a gateway to other dimensions. Became prominent through Norma Milanovich's 1990 book 'We, the Arcturians.' Described as tall, thin beings with large eyes and blue or green skin, originating from the Arcturus star system, 37 light-years from Earth. Associated with healing, spiritual advancement, and protection of Earth. Often depicted as among the most spiritually evolved extraterrestrial races.

Regal blue alien with domed bioluminescent helmet and forehead gem in a red-gold robe
9

Sirians

Associated with the Dogon tribe's astronomical knowledge and Robert Temple's 1976 book 'The Sirius Mystery.' Described as humanoid beings from the Sirius star system, with both human-like and aquatic variants reported. Some accounts link them to ancient Egypt and the construction of pyramids. The Dogon's knowledge of Sirius B before modern astronomy discovered it remains controversial. Sirians are often portrayed as ancient benefactors of human civilisation.

Noble blue-skinned humanoid with platinum hair and turquoise glyphs before a galaxy viewport
10

Andromedans

Emerged through contactee Alex Collier's 1990s testimonies. Described as tall, blue-skinned humanoids from the Andromeda galaxy. Collier claimed they are highly advanced beings concerned with humanity's spiritual development and Earth's role in galactic politics. Associated with the 'Andromeda Council' and warnings about Reptilian influence. Their alleged distance (2.5 million light-years) raises questions about interstellar travel.

Anthropomorphic lion warrior with trident and engraved armor at mountain sunset
11

Lyrans

Featured in various channelling traditions as the original humanoid species in our galaxy. Described as cat-like or lion-like humanoids, sometimes called 'Urmah' or 'Feline Aliens.' Allegedly seeded many humanoid races across the galaxy before wars with Reptilians dispersed them. Associated with the Vega and Lyra star systems. Their mythology positions them as progenitors of Pleiadians, Sirians, and Earth humans.

Glowing blonde figure with starry forehead marking in a sparkling white robe
12

Venusians

Popular in 1950s contactee accounts, most notably through George Adamski and Howard Menger. Described as beautiful, human-like beings claiming Venus as their home. Contactees described receiving spiritual teachings and warnings about nuclear weapons. As science revealed Venus's hostile surface conditions, accounts shifted to describe Venusians living in another dimension or underground. Valiant Thor, an alleged Venusian, supposedly visited the Pentagon in 1957-1960.

Full-body grey alien standing in a bright corridor with oversized head and thin gaunt body
13

Ebens (Serpo Beings)

Described in the alleged Project Serpo documents released in 2005, claiming a 1960s exchange program between the US government and beings from Zeta Reticuli. Ebens are described as short, grey-skinned humanoids similar to Greys but with more individual variation. The Serpo narrative claims 12 military personnel travelled to their planet for 13 years. The story remains highly controversial and is considered by many to be an elaborate hoax or disinformation.

Winged bearded humanoid with horned headdress and ornate robe on ziggurat steps
14

Anunnaki

Derived from Sumerian mythology and popularised by Zecharia Sitchin's 1976 book 'The Twelfth Planet.' Described as tall humanoid beings from the planet Nibiru who allegedly created humanity through genetic engineering to mine gold. Associated with ancient astronaut theories and interpretations of Sumerian texts. Sitchin's translations are rejected by mainstream Sumerologists, but the concept remains influential in alternative history circles.

Humanoid girl with oversized dark eyes and elongated neck in a hospital exam room
15

Human-Alien Hybrids

Reported extensively in abduction literature from the 1980s onwards, particularly through researchers Budd Hopkins, David Jacobs, and John Mack. Described as beings combining human and Grey characteristics, allegedly created through reproductive experiments. Descriptions range from almost human-appearing to distinctly alien. The 'hybrid program' is a central theme in modern abduction narratives, with some experiencers claiming to have hybrid children.

Case-Specific Entities

Tall cloaked figure with spade-shaped head silhouette and glowing orange eyes in misty Appalachian woods
16

Flatwoods Monster

Encountered on September 12, 1952, in Flatwoods, West Virginia, following a bright object landing on a hillside. Described as 10-12 feet tall with a glowing red face, claw-like hands, and a dark metallic body or suit. Witnesses reported a nauseating mist and later suffered symptoms suggesting exposure to unknown substances. Often depicted with an ace-of-spades shaped head. The encounter remains one of the most dramatic early UFO entity reports.

Skinny grey goblin with huge pointed ears, glowing yellow eyes, and clawed fingers
17

Kelly-Hopkinsville Goblins

Encountered on August 21, 1955, when the Sutton family in rural Kentucky reported being terrorized by small creatures for several hours. Described as 3-4 feet tall with large pointed ears, glowing eyes, and silvery skin that seemed to glow in the dark. The family fired repeatedly at the creatures, who allegedly floated rather than walked. The incident is considered a foundational case in UFO entity research and is the origin of 'little green men' in popular culture.

Illustrated depiction of Varginha Beings
18

Varginha Beings (Brazil 1996)

Sighted in January 1996 in Varginha, Brazil, in what became known as 'Brazil's Roswell.' Three young women encountered a creature described as 4-5 feet tall with brown oily skin, large red eyes, and three bumps on its head. Multiple witnesses reported seeing similar creatures, and Brazilian military allegedly captured several. A police officer who reportedly handled one of the beings died weeks later from an unidentified infection. The case inspired the 2022 documentary 'Moment of Contact.'

Giant red-bearded warrior in armored tunic towering over Stonehenge with tiny people
19

Voronezh Giants (Russia 1989)

Reported on September 27, 1989, in Voronezh, Russia, when children playing soccer allegedly witnessed a UFO land and three 9-foot-tall aliens emerge with a robot companion. The beings had small dome-shaped heads with three luminous eyes arranged in a triangle. One child was allegedly frozen by an eye-beam before reappearing when the craft departed. The story was reported by the official TASS news agency during the glasnost era, lending it unusual legitimacy.

Reptilian with tail, scaled armor, and clawed hands in a futuristic control room
20

Zanfretta Entities (Dargos)

Encountered by Italian security guard Pier Fortunato Zanfretta between 1978-1981 during 11 alleged abduction events. The beings, called 'Dargos,' were described as 10-foot-tall green creatures with wrinkled skin, pointed ears, triangular yellow eyes, and claw-like hands. Under hypnosis, Zanfretta claimed they came from the planet 'Teetonia' in the 'third galaxy.' He allegedly received a mysterious crystal sphere. Italy's most famous abduction case.

Illustrated depiction of Ilkley Moor Entity
21

Ilkley Moor Entity (UK 1987)

Photographed on December 1, 1987, by retired police officer Philip Spencer on Ilkley Moor, Yorkshire. The photograph shows a small humanoid with a large head and long arms. Spencer reported missing time and under hypnosis recalled being taken aboard a craft and shown apocalyptic imagery. His compass was found to be reversed. The case is considered one of the UK's most significant UFO encounters with photographic evidence.

Bald grey-skinned humanoid with black robotic hand in a white sci-fi hallway
22

Pascagoula Beings (Mississippi 1973)

Encountered on October 11, 1973, by Charles Hickson and Calvin Parker while fishing. They described three 5-foot-tall beings with grey wrinkled skin, claw-like hands, and cone-shaped protrusions for ears and nose. The creatures floated rather than walked and had slit-like mouths that never moved. The men were floated into a craft and examined by a robotic eye device. A secretly recorded conversation between the men revealed genuine terror.

Full-body grey alien standing in a bright corridor with large dark eyes
23

Ariel School Beings (Zimbabwe 1994)

On September 16, 1994, 62 schoolchildren at Ariel School in Ruwa, Zimbabwe, witnessed a UFO land near their school and beings emerge. The creatures were described as small with large black eyes and were wearing tight black suits. Children reported receiving telepathic messages about environmental destruction. The case gained credibility through Harvard psychiatrist John Mack's investigation. Many witnesses maintain their accounts decades later.

Blonde elf-eared woman in black suit holding a glowing device before aurora mountains
24

Antonio Villas Boas Entity (Brazil 1957)

Encountered on October 16, 1957, when Brazilian farmer Antonio Villas Boas was allegedly abducted by beings in grey spacesuits with blue eyes. He claimed to have been seduced by a female humanoid with white skin and angular features who growled like an animal. The case, investigated by Dr. Olavo Fontes, is one of the earliest detailed abduction accounts and introduced reproductive experimentation themes that would become common in later reports.

Illustrated depiction of Broad Haven Triangle Entities
25

Broad Haven Triangle Entities (Wales 1977)

A series of encounters in February 1977 around Broad Haven, Wales, where schoolchildren and adults reported seeing a cigar-shaped craft and silver-suited beings. Multiple independent witnesses described tall, faceless humanoids in silver jumpsuits. The events, occurring over several weeks, affected the community deeply. The case is notable for the number and variety of witnesses across different demographics.

Contactee & Channelled Beings

Glowing blonde figure with starry forehead marking in a sparkling white robe
36

Ashtar Command / Ashtar Sheran

First channelled by George Van Tassel in 1952, claiming communication with a being named Ashtar commanding a fleet of spacecraft monitoring Earth. The Ashtar Command narrative expanded through various channellers, describing a galactic confederation protecting Earth during its transition to higher consciousness. Ashtar is depicted as a tall Nordic-type being. The concept influenced numerous New Age movements and remains active in spiritual UFO communities.

Figure in grey hooded bodysuit with pale featureless face and pink eyes in a sterile corridor
37

Ummites (Wolf 424)

First appeared in letters sent to Spanish UFO researchers beginning in 1966, claiming to be from the planet Ummo orbiting Wolf 424. The letters contained extensive documentation of Ummite society, science, and philosophy spanning thousands of pages. A UFO bearing the Ummo symbol was reportedly photographed in 1966-67. Jose Luis Jordan Pena later claimed to have created the hoax, though some believe genuine Ummite contact occurred before his involvement.

Blue alien mystic with nebula-glow skull in a mudra hand gesture inside a crystal chamber
38

Ra Social Memory Complex

Channelled by Carla Rueckert between 1981-1984 in 'The Law of One' material. Ra described itself as a 'social memory complex' of sixth-density beings who helped build the Egyptian pyramids. The material covers the 'Law of One' philosophy, densities of consciousness, the 'Harvest,' and the nature of the universe. Highly influential in spiritual UFO circles, particularly through its influence on the Blue Avian narratives.

Two elf-eared blonde women in glittering white robes aboard a starlit ship
39

Pleiadians (Billy Meier Contact)

Swiss farmer Billy Meier claims contact since 1942, most famously with 'Semjase' from the Pleiades beginning in 1975. Meier produced photographs, films, and metal samples allegedly from their craft. The Pleiadians delivered extensive teachings about spirituality, Earth history, and prophecy. Despite controversy over his evidence, Meier maintains the largest body of contactee material ever produced.

Chibi blue alien with huge luminous eyes and flared head-fins in a crystalline green temple
40

Bashar (Channelled by Darryl Anka)

Channelled since 1984 by Darryl Anka, Bashar claims to be a being from the planet Essassani, a civilisation of human-Grey hybrids 300 years in our future. Bashar delivers teachings about reality creation, parallel realities, and following one's excitement. The material has influenced New Age thought and generated a substantial following through books, seminars, and media appearances over four decades.

Small blue-grey alien in a dome helmet with cosmic glow and purple robe with gold trim
41

Kryon (Channelled by Lee Carroll)

Channelled since 1989 by Lee Carroll, Kryon describes itself as a magnetic master entity from the 'Great Central Sun.' Kryon's messages focus on Earth's magnetic grid, DNA activation, and humanity's spiritual evolution. The material has been presented at the United Nations and spawned international seminars. Kryon represents a bridge between New Age channelling and UFO contactee traditions.

Illustrated depiction of Nommo
42

Nommo (Dogon Fish Beings)

Derived from Dogon tribal traditions in Mali, West Africa, describing amphibious beings who brought civilisation from the Sirius star system. Robert Temple's 1976 book 'The Sirius Mystery' proposed the Dogon possessed advanced astronomical knowledge given by the Nommo. Described as fish-like or mermaid/merman beings. While Temple's claims are disputed by anthropologists, the Nommo remain significant in ancient astronaut theories.

Tall pale-blue humanoid with long white hair and glowing cyan facial markings before a starfield
43

Galactic Federation Representatives

A collective term for beings allegedly representing a coalition of civilisations overseeing Earth. Various channellers and contactees describe Federation representatives from multiple star systems working to guide humanity. The concept appears in numerous contactee accounts from the 1950s onwards and remains central to many contemporary spiritual UFO narratives about disclosure and ascension.

Illustrated depiction of Cassiopaeans
44

Cassiopaeans

Channelled since 1994 by Laura Knight-Jadczyk through a Ouija board method. The Cassiopaeans claim to be sixth-density beings from the future, communicating from the Cassiopeia constellation. Their material covers reality matrices, hyperdimensional physics, the 'Wave' transition, and Earth history. The material has generated extensive online discussion and a devoted following focused on 'networking' and truth-seeking.

Winged bearded humanoid with horned headdress and ornate robe on ziggurat steps
45

Thoth/Emerald Tablets Entity

Purported author of the Emerald Tablets, claimed to be an Atlantean priest-king who became the Egyptian god Thoth. Modern channellings present Thoth as an ascended being teaching sacred geometry, alchemy, and ancient wisdom. The original Emerald Tablet text (Tabula Smaragdina) dates to Arabic sources around 700 CE, but modern versions claim much older Atlantean origins through contactee revelation.