Films: Prey (1977)
Location: Forest/Haunted home
Height/Weight: That of an average human.
Summary: What better way to kick off your alien invasion than to crash at a lesbian couple's house? Honestly, can anyone think of a better way to start things off?
History: Kator was an alien scout sent to decide whether Earth would be a good place for eating for the rest of his species. To get around, he murdered a man named Anderson, and took his appearance and namesake. Eventually, he found himself living with a lesbian couple, somewhat diverting from the mission. His very presence inevitably causes friction.
Notable Kills: Nothing special.
Final Fate: Eventually, Kator kills both of the girls in differing circumstances (one during sex, the other in a grave she dug for another). He decides that Earth is easy pickings for his kind.
Powers/Abilities: Can change shape based on one he's killed.
Weakness: Anything conventional.
Scariness Factor: 2-Shapeshifting aside, Kator cannot be taken seriously with that dog nose of his. Seriously, it's as if he was going to be a werewolf, but they just gave up an eighth of the way through.
Trivia: -This film was made under the pretense of exploring the sexual desires of male and female. It just confused the Hell out of critics.
-A sequel, "Human Prey", was planned, but never made.