Hans Holzer, Austrian-American paranormal researcher and author (d. 2009)
Hans Holzer (26 January 1920 – 26 April 2009) was an Austrian-American author and parapsychologist. He wrote more than 120 books on supernatural and occult subjects for the popular market as well as several plays, musicals, films, and documentaries, and hosted a television show, Ghost Hunter (not to be confused with Ghost Hunters).