Mark Dexter is a British actor, classically trained at the Royal Academy of Dramatic Art in London. Dexter's early successes were on stage, in particular with two high-profile productions of Tennessee Williams plays, beginning with Sam Mendes' 1995 Olivier Award winning production of The Glass Menagerie at the Donmar Warehouse, in which he played The Gentleman Caller. Since then, Dexter has moved primarily into film and television. Among an extensive list of British TV credits, he is probably best known in his home country for playing Timothy Gray in the 1950s set ITV crime drama The Bletchley Circle opposite screen wife Anna Maxwell Martin, and for the devious Sun Hill CPS lawyer Matt Hinckley in ITV's The Bill, a role he played from 2006-07. Between October 2008 and January 2009, Dexter made regular appearances in America on NBC, playing the role of Samuel Tuffley in eight episodes of Crusoe, a major 12-part mini-series. In December 2012 in the UK Dexter appeared as the principal villain 'Sir Arthur Donaldson' in the opening episode of the BBC's Victorian crime drama 'Ripper Street'.