"Coastal Command" was made under the supervision of Ian Dalrymple, with the full cooperation of the Royal Air Force and the Royal Navy in the Second world War. The participants in the film were active RAF officers, NCOs and aircrew, and RN officers. The film featured Wing Commander Johnny Hyde (RAF officer) DFC in the lead role, pilot Roger Hunter, and Flight Sergeant Charles Norman Lewis. Johnny Hyde (RAF officer) was killed in action over Norway on 29 April 1942. On 25 August 1942, Lewis was killed on a flight that Prince George, Duke of Kent was undertaking as a morale-boosting mission to Iceland.