The Mad Doctor of Blood Island  (1969)

Theatrical Release Information:
The Mad Doctor of Blood Island

This Filipino scarefest is better known by the title Mad Doctor of Blood Island. The principle villain, however, is not a "he" but an "it". A frantic search is conducted on a remote island for a deadly, green-blooded "Chlorophyl Monster." Notice how we aren't making any toothpaste jokes here. It should come as no surprise that John Ashley is the star; his leading lady is the luscious Angelique Pettyjohn, while Ronald Remy is the eponymous mad doctor. Remy would make a return appearance in a sort of sequel, Beast of Blood ~ Hal Erickson, All Movie Guide