The Skeleton Woman is a skeleton ghost taking on the form of a woman.
The Skeleton Woman first appeared after the battle with the ghosts on the possessed train. When the Ghostbusters stepped out, Peter Venkman noticed a woman standing all alone by the edge of the platform. He rushed over to offer aid. With its back turned to Peter, the grey haired young woman, dressed in a blue business suit, revealed itself as a grinning skeleton with orange red eyes. It then levitated above Peter laughing and growing in size until it exploded in a cloud of smoke.
- In the first draft of the "Knock, Knock" script, the Skeleton Woman is the first entity the Ghostbusters encounter just as they arrive at the subway station. 
- ↑ Straczynski, J. Michael (2009). The Real Ghostbusters Complete Collection Volume One Disc Five, "Knock, Knock" Script p. 12. CPT Holdings, Inc. Line reads: "Heading toward a figure in the mist: from behind, it seems to be a very attractive, well-dressed blonde woman."