Mysterious creatures that have landed on the ground in a flying saucer, encouraging the people they meet to undergo experimental research in exchange for gaining youth and immortality.
Doctor Who: Deep Breath
2014
Forbidden Planet
1956
Roswell
1994
Mutant Pumpkins from Outer Space
2009
Doctor Who: The Curse of Fatal Death
1999
The Wild Blue Yonder
2005
Mass Effect: Paragon Lost
2012
Occupation: Rainfall
2020
Project: ALF
1996
Into Pitch Black
2000
