He was the grandson of Samson Fox (1838–1903), a British engineer and philanthropist, principal founder of the Royal College of Music and inventor of the corrugated boiler flue.
[6] As well as representing many performers, including Julie Christie, Paul Scofield, Marianne Faithfull, and Maggie Smith,[7] he also acted on behalf of film-makers, of whom one was Joseph Losey.
[9] In 1966, Robin Fox appeared in a cameo role in the film Modesty Blaise, as a man who rings a doorbell.
[11] Fox married Angela Worthington, an actress and the illegitimate daughter of the English playwright Frederick Lonsdale.
[13] Fox has been called "a notorious philanderer", and his conquests are reported to have included Princess Marina of Greece and Denmark, the widow of Prince George, Duke of Kent.