The antagonist in the monkey's paw is the monkey's paw. An antagonist does not always have to be a character it can be the "force" in conflict with the protagonist.
Herbert is the least interested in the Monkey's Paw.
dont blame me for what happen
well, i dont see the monkey; and i bet i never shall
From memory: Anticipation was built up in the reader's imagination.
pooop is all on it