Extra-
A prefix meaning “outside,” “beyond,” freely used as an English formative: extrajudicial; extraterritorial; extra-atmospheric and of course, extraterrestrial.
Terrestrial-
Of or pertaining to the earth or this world; worldly; mundane.
my agent says they’re “stand-ins”
Hey, “All the world is a Stage and WE are merely the Actors”.
They never get the full spotlight, always paid the least.
Why do you think they come and go so fast?
When did any real Alien ever get an “Oscar”?
Go figure. Read the fine print.