Holby City cast as Greg Douglas in series twelve. "Holby City" and "Casualty" are both set in Holby City Hospital, in the fictional county of Wyvern, in the southwest of England close to the Welsh border. The city exterior is represented by Bristol, though "Holby City" is filmed at BBC Elstree Centre in Borehamwood, Hertfordshire. The "Casualty" set in Bristol was not large enough to encompass the surgical ward and operating theatre required for "Holby City", and as a result, some crossover scenes in the first episode had to be shot twice, first on the "Casualty" set and then again at Elstree,
Northern General Hospital Clock Tower Building contains the finance department, dining facilities, the volunteers’ office, medical secretaries, security, human resources and the hospital's museum. An out of hours GP centre for patients with minor illnesses alleviates pressure on the accident and emergency department. The hospital is served directly by First South Yorkshire and Stagecoach Yorkshire buses mainly. There is also a specific service that travels between the two main trust sites, the H1. Northern General Hospital The Northern General Hospital is a large teaching hospital and Major Trauma Centre in Sheffield, England. Its departments include Accident and Emergency for adults, with children being