Vice-Admiral Sir Peter Gretton, KCB, DSO, OBE, DSC, was an officer in the Royal Navy. He was active during the World War II Battle of the Atlantic and was a successful convoy escort commander. He eventually rose to become Fifth Sea Lord and retired as a vice admiral before entering university life as a bursar and academic.
Trained at Hull University and the Bristol Old Vic Theatre School, James Cameron Stewart is a veteran actor whose performances include roles in theater, film, and television. His credits include Outlander, Jericho, Flying Blind, Golden Years, Emmerdale, London's Burning, Eastenders, Coronation Street, and Holby City.