Henry Porter has written eight internationally bestselling thrillers, including Brandenburg Gate, which won the CWA Ian Fleming Steel Dagger, and The Bell Ringers, which was also nominated for the award.
Matt Addis made his West End debut in Boeing-Boeing and toured internationally with Stones in His Pockets and When Harry Met Sally. His television credits include W1A, Queen Victoria's Men, Rose, Pobol y Cwm, and The British.