The following is an alphabetical listing that catalogs all known alien races that appear in the Marvel Universe.
Aakon
Galaxy of Origin: Milky Way
Star System:Mira
Planet of Origin:Oorga
Estimated Universal Population:1.1 million
Physical Characteristics:
Type:Humanoid
Eyes:Two
Fingers:Five
Toes:Five
Skin Color:Yellow
Average Height:5'8"
Special Adaptations:None
Type of Government:Militaristic
Level of Technology:Slightly more advanced than Earth's
First Appearance:Captain Marvel #8
A'Askvarii
Galaxy of Origin:Milky Way
Star System:Deneb
Planet of Origin:O'erlanii
Estimated Universal Population:2.5 billion
Physical Characteristics:
Type:Humanoid/Octopoid
Eyes:Two
Fingers:none (suction grips)
Toes:Three (taloned)
Skin Color:Green
Average Height:5'9"
Special Adaptations:Needle Sharp teeth, gills instead of nose, three tentacles on each side of body.
Type of Government:Leaderless
Level of Technology:Intermediate level interstellar star travel
First Appearance:Black Goliath #5
Acanti
Acanti
Galaxy of Origin:Unknowm
Star System:Unknown
Planet of Origin:Unknown
Estimated Universal Population:Uknown
Physical Characteristics:
Type:Fishlike
Eyes:Two
Fingers:none
Toes:none
Skin Color:Red
Average Length:5280'
Special Adaptations:Can live and breathe in the vacuum of space, travel at interplanetary speeds, have and internal atmostphere and gravity within themselves. (Note technology can be implanted within the Acanti without causing them harm or breaching their internal atmosphere).
Type of Government:Unknown
Level of Technology:Unknown
First Appearance:The Uncanny X-Men #156
Achernonians
Achernonians
Galaxy of Origin: Milky Way
Star System:Alpha Unakalhai
Planet of Origin:Achernon
Estimated Universal Population:81 million
Physical Characteristics:
Type:Humanoid
Eyes:Two
Fingers:Five (with opposable thumb)
Toes:Two (taloned)
Skin Color:Purple Gray
Average Height:6'4"
Special Adaptations:Some have the ability to become immaterial
Type of Government:Dictatorship
Level of Technology:Pre-Industrial
First Appearance:Thor Annual #6
A-Chiltarians
Galaxy of Origin: Milky Way
Star System:A-Chiltar
Planet of Origin:A-Chiltar III
Estimated Universal Population:800 million
Physical Characteristics:
Type:Humanoid
Eyes:Two (multi-faceted)
Fingers:Four
Toes:Three
Skin Color:Purple Gray fur
Average Height:5'5"
Special Adaptations:Multi-Faceted eyes allow them to see in many directions at once. Unable to breathe Earth's atmosphere.
Type of Government:Tribal
Level of Technology:Interstellar travel, but less advanced than earth.
First Appearance:Tales to Astonish #46
Alpha Centaurians
Galaxy of Origin: Unknown
Star System:Alpha Centauri
Planet of Origin:Arima
Estimated Universal Population:75 million
Physical Characteristics:
Type:Humanoid
Eyes:Two
Fingers:Five (with opposable thumb)
Toes:Three (webbed)
Skin Color:Grey
Average Height:6'1"
Special Adaptations:Gills and other adaptations designed for life underwater.
Type of Government:Feudal
Level of Technology:Interstellar travel, capable of light speed.
First Appearance:Sub-Mariner #17
Arcturans
Galaxy of Origin:Milky Way
Star System:Arcturas
Planet of Origin:Arcturus IV
Estimated Universal Population:4 Billion
Physical Characteristics:
Type:Humanoid
Eyes:Two
Fingers:Five (with opposable thumb)
Toes:Five
Skin Color:Pin-White
Average Height:5'9"
Special Adaptations:Ability to become mutants almost equal to humans.
Type of Government:Variety of governments planet wide (similar to Earth)
Level of Technology:Comparable to Earth
First Appearance:Fear #23
Astrans
Galaxy of Origin:Milky Way
Star System:Mu Cephi
Planet of Origin:Astra
Estimated Universal Population:10 million
Physical Characteristics:
Type:Humanoid
Eyes:Two
Fingers:Five (with opposable thumb)
Toes:None (Feet are like spatulas)
Skin Color:Yellow
Average Height:5'6"
Special Adaptations:Hairless, Four Lungs.
Type of Government:Theocracy
Level of Technology:Comparable to Earth
First Appearance:Incredible Hulk, The Vol. II #6
Autocrons
Galaxy of Origin:Milky Way
Star System:Betelgeuse
Planet of Origin:Cron
Estimated Universal Population:10 billion
Physical Characteristics:
Type:Semi-Humanoid
Eyes:Two
Fingers:Five
Toes:Two
Skin Color:Blue-Black
Average Height:6'5"
Special Adaptations:Bodies are iron-based granting them superhuman strength and endurance.
Type of Government:Technocracy (World-Computer is their leader)
Level of Technology:Superior to Earth (Interstellar Starships with warp-drive capacity)
First Appearance:Machine Man #3
Axi-Tun
Axi-Tun
Galaxy of Origin:Ring Nebulae M-57
Star System:S'vihn-Hoont
Planet of Origin:Tun
Estimated Universal Population:57,000
Physical Characteristics:
Type:Humanoid
Eyes:Two
Fingers:Five (with opposable thumb)
Toes:Five
Skin Color:Pink
Average Height:6'4"
Special Adaptations:Varying levels of energy manipulation abilities.
Type of Government:Unknown
Level of Technology:Superior to Earth (Faster than light travel)
First Appearance:Invaders, The #1
Ba-Bani
Galaxy of Origin: Milky Way
Star System:Ba
Planet of Origin:Ba-Banis
Estimated Universal Population:92 million
Physical Characteristics:
Type:Humanoid
Eyes:Two
Fingers:Five
Toes:Five
Skin Color:Light Yellow
Average Height:5'9"
Special Adaptations:None
Type of Government:Militaristic dictatorships
Level of Technology:Comparable to Earth's, no interstellar travel
First Appearance:Avengers #219
Badoon
Galaxy of Origin: Milky Way
Star System:Lomora
Planet of Origin:Lotiara
Estimated Universal Population:80 million
Physical Characteristics:
Type:Reptiallian/Humanoid
Eyes:Two
Fingers:Four (webbed with opposable thumbs)
Toes:Two (webbed)
Skin Color:Green
Average Height:6'
Special Adaptations:Females lay eggs
Type of Government:Monarchy
Level of Technology:Interstellar travel
First Appearance:Silver Surfer, The #2
Betans
Galaxy of Origin: Milky Way
Star System:Mirpet
Planet of Origin:Beta
Estimated Universal Population:65,900
Physical Characteristics:
Type:Humanoid
Eyes:Two
Fingers:Two (with opposable thumbs)
Toes:Two
Skin Color:Light Purple
Average Height:7'1"
Special Adaptations:Small wings which enable them to fly in low gravity.
Type of Government:Unknown
Level of Technology:Superior to Earth, faster than light travel
First Appearance:Godzilla #12
Brood
Galaxy of Origin: Unknown
Star System:Unknown
Planet of Origin:BroodWorld
Estimated Universal Population:Unknown
Physical Characteristics:
Type:Insectoid
Eyes:Two
Legs:Six (can be used as tentacles)
Toes:None
Skin Color:Brown
Average Height:8' in length
Special Adaptations:Long tail with two stingers, transparent wings enabling flight, sharp teeth, armor-like skin.
Type of Government:Absolute Matriarchy
Level of Technology:They use the Acanti (see above) as living starships, they have advanced bioengineering capabilities and weaponry
First Appearance:The Uncanny X-Men #155
Centaurians
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Centaurians
Galaxy of Origin: Milky Way
Star System:Beta Centauri
Planet of Origin:Centauri IV
Estimated Universal Population:100 Million
Physical Characteristics:
Type:Humanoid
Eyes:Two
Fingers:Five (with opposable thumb)
Toes:Five
Skin Color:Blue
Average Height:7' (at dorsal fin)
Special Adaptations:Adults possess a large dorsal fin, some possess psychic abilities
Type of Government:Tribal
Level of Technology:Primitive
First Appearance:Marvel Super-Heroes #18
