The Other is a formless intelligence from dimensions outside of our own that can inhabit the corpse of any creature that had an INT of 1 or greater in life.
The reanimated corpse is unnaturally strong and fast. It is more cunning than intelligent, but it can draw upon the memories of the corpse it animates.
Through in bits of incongruous dialog and speech into her pleas, The Other that is possessing her corpse can Parrot human speech and knowledge well, but it is of another world and cannot fundamentally understand humans.