Where did the alien 'Grey' come from? | A record of how the grey-skinned, large black-eyed figure became established since 1961

For those who searched for 'alien Grey', 'Grey origin', or 'why do aliens look like that'.To put it briefly, the Grey alien ...
IMDb

‘Resident Alien’ Season 4 Ending Explained & Finale Recap: Will Harry Wage War Against The Greys?

In Resident Alien season 4’s ending, Harry had been struggling with the dilemma of whether he should tell Heather the truth ...