Per his Autobiography, Adam West was accidentally left alone on the island where filming took place overnight.
This was the first of a three-picture deal between producer Howard W. Koch and Boris Karloff for which Karloff was to be paid $25,000 per film.
Although set in the South Pacific, the film was actually filmed on the island of Kauai, Hawaii.
Voodoo Island was released theatrically by United Artists on a double bill with Pharaoh's Curse (1957). The film was later re-titled Silent Death for a very brief 1963 theatrical re-release, sharing the bill with The Black Sleep (1956) (which is also known as Dr. Cadman's Secret).