reference - What movie is Kevin from?

In Cabin in the Woods, there is a board with a list of monsters on it:

Between Deadites and Mummy in the lower left, there is Kevin. I am Kevin. I would like to know what monster reference this is to, as most of these are references to other movies.

Answer

From the Visual Companion to The Cabin in the Woods:

Some stuff had to get cut from the monster rampage sequence at the end. The Angry Molesting Tree, which you can glimpse in the elevator in one scene, got much more molest-y in another shot, which might wind up as a DVD extra. Also, one of Goddard's favorite monsters was Kevin, a sweet-looking guy who seemed like he might work at Best Buy — until he dismembers people.