Valak

First appearance: The Conjuring 2 (2016)

Ed and Lorraine Warren investigate the Enfield Poltergeist! But before that they investigated the Amityville House and Lorraine met a creepy ghost nun. Who is this nun? What does she have against the Warrens? Great follow up to the Conjuring. 

Jack Goodman

First appearance: An American Werewolf In London (1981)

Two American tourists travelling across Europe run afoul of some British wildlife and have a life changing experience.

This is the best werewolf movie ever made. And one of the most entertaining Haunted Houses at Universal Halloween Horror Nights.

Dorthea Paymon

First appearance: Last Shift (AKA Paymon: King of Hell, 2015)

A rookie cop's first shift is watching over the last night of the closing of a police station her father used to be assigned to. Turns out some unpleasant things happened at this station. Things that were linked to the case that took her father's life. She's supposed to be alone, waiting for the bio-hazard clean-up crew to pickup some bloody evidence. Turns out she might not be alone...

Pretty decent little ghost story. Some really cool imagery.

Broken Head Red Ghost

First appearance: Crimson Peak (2015)

Guillermo Del Toro's gothic romance about a lady who wants to be a writer, a man who needs investor's for his giant clay digging machine, his creepy sister and a house that's slowing sinking into the clay pits under it. Also there's ghosts.
Definitely a movie best seen on the big screen. The costuming and art direction are fantastic, just don't go into it expecting a scare fest, the ads kind of make it will be. That being said there is some particularly grisly things on screen.

Lassander Dagmar

First appearance: We Are Still Here (2015)

A couple moves to a new home in a small town hoping to recover from the recent loss of their son. Once they've moved in strange things start happening. Is it their son trying to communicate from the other side?
When their neighbours swing by to welcome them, they also tell them the sad story of the family who the home was originally built for. And since everyone's acting weird the unhappy couple invite their hippy buddies over to help try to communicate with the apparent spirit hanging around the home. And since that's never resulted in anything good happening to anybody, mayhem ensues!

One of the best haunted house flicks I've seen in a long time. check it out!

Possessed miners on Mars

First Appearance: John Carpenter's Ghosts of Mars (2001)

A couple of police officers on Mars need to transport a criminal to a remote mining settlement. When they get there it turns out all the miners have been possessed by Martian ghosts. A siege ensues.
This movie is as close as you can get to being a Western as possible with out actually having it set in the old west, using horses or having the heroes fight "injuns." Still wondering when John Carpenter's just going to make that Western he seems to want to make.
Also of note it features a score by John Carpenter (on synthesizer) and a bunch of heavy metal guitarits, including Robin Finck, Steve Vai and Buckethead, and the rest of Anthrax.

Blake

First appearance: The Fog (1980)

One hundred years ago on April 21, (1880) a bunch of jerks stop a rich man named Blake (who was a leper) from establishing a leper colony on the outskirts of Antonio Bay, California. First they took the gold he offered to buy the land he was going to use and then they cause the ship carrying Blake and his buddies to sink in the bay.
Now (1980) on the 100th anniversary of the shipwreck and founding of the town a heavy fog rolls in from the bay! Is there something in the fog? What's causing all the weird phenomena happening around town?
GHOST PIRATES?! Maybe. Whatever is in the fog is killing a lot of people. Is anyone safe. PROBABLY NOT!

Pretty good ghost story from John Carpenter. Remade in 2005 as a really terrible teen horror movie.
Check out the original it's spooky and atmospheric and Carpenter's score is pretty creepy too.

Sadako

First appearance: Ringu (1998)

A weird psychic girl gets her revenge through a cursed video tape. Watching the tape means you'll die in seven days. Why does she want to kill you? It has something to do with being thrown in a well where she died. Certain aspects of the plot are similar to the amaing "The Changling" (1980).

Remade in the U.S. into a stylish yet boring movie. 

Bughuul

First appearance: Sinister (2012)

A heart warming tale of a true crime author discovering a box full of home movies in the attic of the house he just moved into. Wait, did I say heart warming? I meant terrifying.
The plot follows the crime writer's attempt to unravel the mystery of a family who is hanged in their backyard and their missing daughter. The murderer conveniently leaves the author clues as to what happened in the form of a box full of deceptively labeled snuff films in the attic of the house where the murder took place and the author has just moved his own family into.
Very creepy movie involving pagan gods, horrible murders and a guy who just wants to write a book about the murders.

David Lo Pan

  

First appearance: Big Trouble in Little China (1986)

One of my favorite movies of all time (weird how many of them are John Carpenter movies) is Big Trouble in Little China. If you haven't seen it its about an over confident truck driver's attempt to stop an ancient evil Chinese ghost from marrying two women with green eyes. One girl is a gambling buddy's girlfriend and the the other is some woman he met at the airport. Mayhem ensues. 

An interesting bit of trivia: The movie was originally set in the old west, which would have made it the only actual western John Carpenter would have made, but was re-written by the guy responsible for The Adventures of Buckaroo Banzai Across the Eighth Dimension.

You might also like to know you can get Dave on a bunch of stuff at my Cafe press store. So if you dig this and want it on a shirt or a keychain or on a teddy bear or something go to the store and buy something.

Him, Madman

First Appearance: I, Madman (1989)

A woman who wants to be an actress works in a used book store, dates a stereotypical detective and really gets into the pulp horror novels she reads gets menaced by a mutilated maniacal mutilator straight out of the book she's currently reading. Is he real? Is she actually killing off all the annoying people in her life? Is it the insane author of the novels who died in the 50s? Who cares! Surprisingly good flick. I also just found out that it was made by the same guy who made one of my favorite movies, THE GATE. It would make a half decent double feature with In the Mouth of Madness.
The movie was originally going to be called HARDCOVER, good thing it wasn't. I never would have bothered trying to find Hardcover.

Candyman

First appearance: Candyman (1992)

Christine

First Appearance: Christine (1983)

Spud

First Appearance: Ghostbusters (1984)