[1][2] Le Prevost's TV and radio credits include Coronation Street, The Imitation Game, It Takes a Worried Man, The Jewel in the Crown, HR, Brideshead Revisited, The Camomile Lawn, Harnessing Peacocks, Babblewick Hall, The Ghosts of Motley Hall, Up the Garden Path, The War of the Worlds, Inspector Morse, Midsomer Murders, Foyle's War, Agatha Christie's Poirot, The Vicar of Dibley and A Man for All Seasons.
[6][7] Since 2003, Le Prevost has been portraying Georges Simenon's fictional detective Jules Maigret for BBC Radio, replacing the late Maurice Denham in the role.
[10] In July 2010, he appeared in a double bill of Tom Stoppard's The Real Inspector Hound and Richard Brinsley Sheridan's The Critic at the Minerva Theatre, Chichester.
[13] Le Prevost is a director of The Wrestling School, a London theatre company specialising in the work of Howard Barker.
[14] In 2016, he had a cameo role as an investment banker for a fictitious London-based firm called Waterston and Price in the Danish thriller Follow the Money, which was shown on BBC 4 in spring of that year.