Before training at Central School of Speech and Drama, Saul practiced law, for five years, in South Africa and London. He has appeared in West End and many other major U.K. theatres.
Saul is Artistic Director of Lone Star Theatre Company and lives in London.
In 2005 Saul played the British Conservative Party leader, Michael Howard, in the Really Useful Group production, Who's the Daddy? winner of the 2005 Best New Comedy Award at the King's Head Theatre.
At the Royal National Theatre Saul played the leading role of Valentine in Love for Love, and narrated The Threepenny Opera. In 2001 he was nominated Best Actor for his performance as Josef Mashkan in Old Wicked Songs (a Pieter Toerien production). He has also won Best Director Award for his own production of The Purification by Tennessee Williams.
For Oscar - winning director, Anthony Minghella (The English Patient) Saul created the role of Robert, Earl of Oxford in the world premiere of Minghella's Two Planks and a Passion.
Saul played the leading role in The Prisoner File, Ch4, based on the classic drama series; Bram Fischer, Defence Counsel in Mandela, with Danny Glover, TVS/HBO; psychiatrists in BBC's Miss Marple and Sam Saturday; a Mossad agent in Lockerbie (US version); a Sheikh in Inspector Morse, Racehorse owner in ITV's Poirot; Howard Levy in BBC's Headhunters, directed by Simon Langton; David Guntzman in BBC's Wall of Silence, dir. Philip Saville; and an advertising executive in BBC TV's cult series, This Life.
Saul may be seen playing a Russian liaison officer in a feature film Point Men, (HBO) with Bond Director, John Glen, now on release.