Clowns (It (Tom R))
Hell Lord (Fornicus) (Hellraiser)
Angry Molesting Trees (The Evil Dead (Joe))
Deadites (The Evil Dead 3: Army of Darkness (Joe))
Kevin (Original creation (Chris))
The Scarecrow Folk
Dolls (white masks (Oi; Emily)) (The Strangers (Rio))
Zombie Redneck Torture Family
Jack O Lantern
Twins (The Shining (TomR))
I'm thinking there are more monsters than this. That this is just the list of "potentials" based on the items in the cellar at the house. It certainly seemed like there were more than 34 monsters when we saw the extreme long shot of all the "elevators". Like, for example, what would the scorpion robot be? "Kevin"?
Update 4/21/12: Thanks to Chris for an explanation about what "Kevin" is: "There's an interview I read yesterday with the director, Drew Goddard. He said Kevin was a fun monster he made up. It's just a regular Wal-Mart employee kind of guy, and he goes around killing people. His blandness is the funny part."
Non-board monsters: (contributor in parentheses)
Scorpion Robot with Buzzsaw Tail (Rmase) (Virus (?) (Bonkydog)) (or Battle Bots?)
Girl with Ugly Teeth-Strewn Face
Projectile Vomiters (Rmiller)
For the full inquiry about the film, click here.