Graham Guy grew up in Naracoorte, but left home at the age of fifteen to work for a stock agent. He has worked as a car salesman, shearer, factory worker, and policeman, and served in the navy. In 1969, he began work in radio and TV, both in South Australia and elsewhere. He is also a songwriter and lyricist.
He has published a number of thrillers through small South Australian press Peacock Publications.