Films: Xtro (1982)

Alias: Sam Phillips

Type: Alien

Location: Forest/Haunted home

Height/Weight: Goes from that of a large dog to that of an average human.

Affiliation: Neutral, leaning on Evil

Summary: This...might be one of the strangest malevolent alien encounters we've seen. We're not even sure how to describe it. But hey, a guy can try, right?

History: Long ago, Sam Phillips was abducted by aliens. Now, he's back, albeit he's become one of them now. Forced to impregnate a random woman so that he may be born again as a human (...yeah), he comes to his awaiting family to give his son Tony new powers (in a REALLY creepy way). The power of reality warping quickly goes to Tony's head...

Notable Kills: The infamous birth scene, Tony using his powers to make a big toy clown with a razor yo-yo, the black panther being made to attack, it just keeps piling on.

Final Fate: After turning into a skeletal alien humanoid, Sam takes Tony with him to the far reaches of space. Depending on the ending you watch, his wife either finds Tony clones at her home, or gets assaulted by another Xtro.

Powers/Abilities: Reincarnation through rape, shapeshifting, warping reality, impregnation, screaming loud enough to melt brains.

Weakness: Anything conventional, hopefullly.

Scariness Factor: 4.5-These aliens seem to revel in violence, even if they're only concerned with prolonging their species, apparently. But damn, the means to their conception and their powers make them total nightmares! Their alien forms are also rather off-putting, especially the first one.

Trivia: -Apparently, director Harry Bromley-Davenport was completely high while making this film. It would explain a lot, really.

-The Xtro's first form and the beefed-up toy Action Man were played by a pair of mimes named Tik and Tok. As if mimes weren't creepy enough.