Films: The Kindred (1987)
Location: Haunted home/Civilized area
Height/Weight: Grows to that of an average human.
Summary: If you want yourself a little brother, just ask your parents to do the Dirty Dingo next time. There's no need to use twisted alchemy if you're so desperate. And even then, John Hollins wasn't prepared for the measures his own mom took to get one.
History: Amanda Hollins was dead. And all anyone heard from her was that she wanted her life's lab work to be destroyed, and that her son John had a little brother. But John never knew that. As it turned out, Amanda tried to create life, but her experiments resulted in Anthony, a freakish monster constantly changing form and size, and now he's on the loose...
Notable Kills: Literally drives a woman to her doom in the water.
Final Fate: Just as Anthony begins to develop a form that's vaguely human, John has him electrocuted to death, ending his misery.
Powers/Abilities: Constantly evolving and backed up by smaller monsters.
Weakness: Anything conventional.
Scariness Factor: 4-Anthony may not be seen often, but when he is, he's enough to make you retch. A malformed consistently angry parody of life, electrocuting him feels like a mercy for both us and him really.
Trivia: -This film was also known simply as "Anthony".
-The term for artificial humanoid creatures is "homunculus", and people have actually tried creating such things...to varied success. Nothing truly sapient, but certainly weird.