1st dead woman
Isn't that Pauline Collins playing the first dead body in this film, shown twice?
shareIt does look a bit like her. The person who actually played that part posted about it on this board:
http://www.imdb.com/title/tt0083908/board/thread/84199017?d=97011896#97011896
Look under the threads "Question about locales" and "Filming dates" (currently on page 3 of threads).