Gérard de Villiers (8 December 1929 – 31 October 2013) was a French writer, journalist and publisher whose SAS series of spy novels have been major bestsellers. Born in Paris in 1929, Villiers was the son of playwright Jacques Adam de Villiers (known by his stage name of Jacques Deval) and his wife. His father was both prolific and a spendthrift. The younger Villiers attended high school and graduated from Sciences Po university in Paris. He also obtained a degree from the École supérieure de journalisme de Paris.