David

First appearance: The Lost Boys (1987)

A single mom and her two sons move to the murder capital of the world. Vampiric hijinks ensue.
Features the greatest vampire hunters in movie history. The Frog Brothers, Edgar and Allen.

Molasar

First appearance: The Keep (1983)

Nazi's guarding an ancient keep awaken something horrible when trying to steal silver crosses embedded in the walls.  A mystical weirdo swings by to help a jewish academic and his daughter who are being held prisoner by the Nazis and forced to study the creepy keep. The weirdo's actually there to help the horrible thing. Weirdo falls in love with the academic monster. Horrible thing kills a bunch of Nazis proving that even ancient evil hates Nazis
Based on a pretty good novel by F. Paul Wilson. 

The Boogens

First Appearance: The Boogens (1981)

A bunch of weird octopus turtle things are released from an old silver mine 100 years after the army closed the mine due to a mysterious massacre. The boogens proceed to kill people. Stephen King gave the movie a good review in Twilight Zone Magazine, in case things like that are important to you.

Alien, hunter

First appearance: Without Warning (1980)

Have you ever heard of that movie 'Predator'? You know the one where an alien hunter stalks and kills a bunch of guys in the jungle? Yeah? Well this is kind of like that. Only its in the woods near a lake and the people fighting the alien are a crazy guy who may or may not own a gas station (played by Jack Palance, the guy not the gas station), a crazy army vet (Martin Landau) and a pair of useless teens. Instead of invisibility and high tech weapons, this alien throws weird, fleshy, frisbee parasites at people.  The alien's not it it very much.
Another interesting parallel to Predator, both aliens were played by TV's Misfits of Science's Kevin Peter Hall.

 

Father Harry Powell

First appearence: The Night of the Hunter (1955)

Can't believe it took me so long to get around to seeing this movie.
 It's about a homicidal maniac who believes god is telling him to murder widows and bimbos. He ends up being thrown in jail as a car thief, his cellmate is going to be hanged for killing a couple of people during a bank robbery. One night the man who will be hanged talks in his sleep revealing that the money he stole is hidden somewhere and his children know where. After the ersatz preacher is let out of jail he head straight to the bank robber's home town and seduces his wife. Terror and suspense ensue.

If you missed out on my Teen-wolf Shirt

Why not pick up a Gremlins inspired shirt! available for 24 hours starting midnite Saturday the 19th of May and no longer available at 11:59:59 p.m. It Glows in the dark! SHIRTPUNCH.COM

Rats: The Night of Terror (Spoiler monstar sorry)

 

First appearance: Rats: The Night of Terror (1984)

A post apocalyptic flick where a bunch of 1980s punks try to survive a night in a rundown building. Oh and did I mention the building is filled with evil rats! There's also these mysterious guys in yellow HAZMAT suits who show up and cart away some of the injured punks. Who are these  weirdos in yellow? I kinda blow that mystery by showing you in this edition of Monstars, sorry. I debated whether I should or not but the movie's pretty crummy (directed by Bruno Mattei so if you've seen any of his flicks you know what to expect) most people probably won't make it to the reveal, also I've seen trailers and posters featuring the "suprise twist" so I figure if the film makers let the Rat out of the bag so to speak so will I. Here's a trailer with one of the alternate titles: BLOOD KILL! whatever that means.