In the movie version of Pet Sematary, a dying Victor Pascow somehow knows Louis' name, and begins to warn Louis of the sour land. His "ghost" later appears to him, showing him the barrier at the Pet Sematary which must not be crossed. In these scenes, Louis can clearly see and hear him, though it is questionable whether Pascow is actually responding to him.
Later, Pascow appears again to Louis, warning him not to use the soured land.
In all of these instances, whatever Pascow is, seems to be benevolent, warding Louis away from the soured land. Of note, he does not appear to Louis when he and Jud cross the barrier to bury Church.
However, Pascow also
appears to Rachel, urging her home. Rachel never directly responds to or acknowledges Pascow, nor does the travel agent - but both seem to be affected by his presence. It could be argued that urging her home, knowing that Gage has returned, is not exactly benevolent in nature.
What exactly is Victor Pascow?