A type of UFO occupant. Typically diminutive, grey-skinned being with large black eyes, frail body and a slit for a mouth. The also have flat, duck-like feet but this is never shown in films or TV as undermines their sinister, ethereal quality.
Purportedly from the Zeta Reticuli star system but fond of hanging around the mid-western
United States, waiting to fondle truckers, rednecks, fishermen, loggers and people
looking for a publisher.
Abilities; walking into locked rooms, designing and flying circular craft, turning radios on and off with science/telepathy,
levitation and fingering orifices.
First appearance in fiction; possibly the work of HG Wells.
Witness 1; wait!...
what are those beings in the clearing... my God!
Wotness 2: Oh they're just Greyliens. They aren't famous aliens like Klaatu and Gort.
Witness 1; or Han and Chewie.
Witness 2: is Han an Alien?
Witness 1;
technically he was.
Greyliens return to saucer, feeling
despondent. Nobody notices.