He starred as the lead in "Above Their Station", a sitcom for the BBC written by Rhys Thomas about Community Support Officers; it was made as a pilot but never commissioned, being shown only as a one-off special. Lawson appeared alongside actress Helena Bonham Carter in the BBC Four movie based on the life of Enid Blyton, playing Kenneth Darrell Waters, a London surgeon who becomes Blyton's second husband. In July 2009 Lawson appeared as Alexander Fleming in a BBC Four drama called "Breaking the Mould: The Story of Penicillin" alongside Dominic West. Lawson played the part of Alice's grandfather in ITV1's supernatural crime thriller "Marchlands" which was shown in February 2011.