An alien, or more accurately extraterrestrial, is any life-form originating from beyond the planet Earth.

Known types of alien include Grey aliens (also occasionally referred to as Reticulians), bounty hunters, faceless aliens and alien super soldiers. Black oil is the life-force of Grey aliens, existing inside them. A hybrid is partially alien but also partially human. (citations required)

Sentient Races Edit

• The Greys (sometimes also referred to as Colonist or Reticulians) Note that Long-Clawed Aliens are just a different life cycles of a typical Grey. The Greys are the aliens recolonizing Earth after an ice age forced them to leave. Greys in their early stages of life look like yellow and green muscular humanoids with reptile like skin, clawed hands, large black eyes, slits for a nose and a mouth full of sharp teeth. After exposure to immense heat, they transform into an adult Grey, which is about the size of a human child, whereas the immature form of a Grey was as big as an adult human. They retain most features of the immature version except they lack muscular bodies, green and yellow reptile like skin, sharp teeth and claws on their hands. Instead they have frail bodies that's grey in color and is more smooth, plus their heads have enlarged.
• Purity (Also referred to as Black Oil or Black Cancer) are an intelligent alien virus and have a symbiotic relationship with The Greys, much like humans have symbiotic relationship with numerous types of bacteria and fungus that live inside the body.
• Shapeshifting Aliens (includes both Bounty hunters and Faceless alien Rebels)
• Kindred: The Kindred look and act like a typical Amish like group. However it's heavily implied they are really gender changing aliens. They apparently lived on Earth until Mulder and Scully learned too much about them, and they fled, leaving strange indents in their corn fields that clearly look like a flying saucers.
• Martians: Martians are gas based lifeforms native to Mars. They can travel in space without ships and are able to possess other creatures such as Humans. Besides their gas like bodies, they have faces that look like twisted Human faces, which they can even form when possessing a Human. They are known to sabotage Human space flights for some unknown reason, and one possessed Marcus Aurelius Belt during a space mission when he was an astronaut, in order to cause more destruction and loss of life. However Marcus managed to throw himself out a window, killing him and the Martian and putting an end to Martian meddling to Human spaceflights for now.
• Mammalian Beings
• Super Soldiers
• Hybrids
• Clones

Alien Creatures Edit

• Alien Spider
• Feathery Serpent
• Parasitic Ice Worm

Appearances Edit

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Known Aliens Edit

• Bounty hunter
• Jeremiah Smith