Benedict Cumberbatch Lieutenant Jimmy Langley Actor Phil Cornwell Harry Noakes Actor Clive Brunt Private Alf Tombs Actor Simon Russell Beale Winston Churchill Actor Ricci Harnett Guardsman Desmond Thorogood Actor Nicholas Jones Major Angus McCorquodale Actor Michael Legge Signalman Wilf Saunders Actor Kevin R. McNally Major-General Harold Alexander Actor Roland Manookian Frankie Osborne Actor Adrian Rawlins Captain Bill Tennant Actor Alex Holmes Director Rob Warr Producer