As Elisabeth told us last month, director Michael Emanuel's version of Wendigo will center on a small-town sheriff who used to be an FBI profiler. When a bunch of strange murders pop up, he puts his old talents to the test, "only to discover that the monster he's profiling might be himself." See, the Wendigo spirit is said to enter through acts of cannibalism or dreams, so we'll have to wait and see if someone slips him a piece human meat, or he gets pulled into a bad dreamworld.
There's no word on who is playing what role, but IMDb does have the character names listed. Seeing that Cain's at the top, I think it's safe to assume that he's our Wendigo dude.