Nathaniel Parker (born 18 May 1962) is an English stage and screen actor best known for playing the lead in the BBC crime drama series The Inspector Lynley Mysteries, and Agravaine de Bois in the fourth series of Merlin.

Early life
Nathaniel Parker was born in London, the youngest son of the businessman and one-time British Rail chairman Sir Peter Parker and Jillian, a GP and gardener, who wrote The Purest of Pleasures: Creation of a Romantic Garden. He has two older brothers, Alan, chairman of Brunswick Group, and Oliver Parker, a film director, and a sister, Lucy. Parker joined the National Youth Theatre, and after training at the London Academy of Music and Dramatic Art, became a member of the Royal Shakespeare Company in 1986.