Jonathan Powell (Labour adviser) to the Iraq Inquiry. Powell has four children: two daughters with his partner, Sarah Helm, and two sons from a previous marriage. Jonathan Powell (Labour adviser) Jonathan Nicholas Powell (born 14 August 1956) is a British diplomat who served as the first Downing Street Chief of Staff, under British prime minister Tony Blair from 1997 to 2007. He was the only senior adviser to last the whole period of Blair's leadership. During this period Powell was also the chief British negotiator on Northern Ireland. In 2007, Powell joined Morgan Stanley as a full-time senior managing director of its investment banking
Jonathan Powell (producer) Jonathan Powell (producer) Jonathan Leslie Powell (born 25 April 1947 in Sittingbourne, Kent) is a British television producer and executive, and later a professor and head of department of Media Arts at Royal Holloway, University of London. Powell was educated at Sherborne School and the University of East Anglia where he studied English Literature. In 1968, he began working in television drama, producing programmes such as "Crown Court". Working for the BBC, he produced several drama series during the 1970s and 1980s, including literary adaptations such as "A Christmas Carol" (1977), "Wuthering Heights" (1978), "Testament of Youth" (1979), "Pride and