Graham Masterton (born 16 January 1946 in Edinburgh) is a British horror author. Originally editor of Mayfair and the British edition of Penthouse, Graham Masterton's first novel The Manitou was released in 1976. This novel was adapted in 1978 for the film The Manitou. Further works garnered critical acclaim, including a Special Edgar Award by the Mystery Writers of America for Charnel House and a Silver Medal by the West Coast Review of Books for Mirror. He is also the only non-French winner of the prestigious Prix Julia Verlanger for his novel Family Portrait, an imaginative reworking of the Oscar Wilde novel The Picture of Dorian Gray. Masterton was also the editor of Scare Care, a horror anthology published for the benefit of abused children in Europe and the USA.
Masterton's novels often contain visceral sex and horror. In addition to his novels Masterton has written a number of sex instruction books, including How To Drive Your Man Wild In Bed and Wild Sex for New Lovers. A number of his novels have also been adapted into films.
Masterton currently lives in Surrey, England. His wife and agent Wiescka died on 27 April 2011, aged 65.
In 2002, while living with his wife in Cork, Ireland, he added crime fiction to his repertoire with A Terrible Beauty featuring Irish Detective Superintendent Katie Maguire. This was republished in 2013 as White Bones and sold 100,000 ebook copies in a month. It is to be followed by further Katie Maguire adventures, Broken Angels (2013) and Red Light (2014). In 2010, Masterton published Rules of Duel, a short novel from the early 1970s that he wrote in collaboration with William S. Burroughs (Burroughs has co-author credit).