- Writer:
- Ian Curteis
- Music composed by:
- Wilfred Josephs
- Conducted by:
- Marcus Dods
- Film Research:
- Shirley Seaton
- Military Adviser:
- Brigadier Peter Young, D.S.O., M.C.
- Costume Designer:
- Andrew MacKenzie
- Make-up Artist:
- Eileen Mair
- Designer:
- Chris Pemsel
- Producer:
- Alan Shallcross
- Director:
- Alan Gibson
- Excutive Producer for Le Vien International Production Ltd.:
- Jack Le Vien
- Winston Churchill:
- Timothy West
- General Sir Claude Auchinleck:
- Patrick Allen
- King George VI:
- Lyndon Brook
- General Dwight D. Eisenhower:
- Richard Dysart
- Secretary of War Henry Stimson:
- Alexander Knox
- General Sir Archibald Wavell:
- Patrick Magee
- General Sir Alan Brooke:
- Eric Porter
- General B.L. Montgomery:
- Ian Richardson
- President Franklin D. Roosevelt:
- Arthur Hill
- General George C. Marshall:
- Joseph Cotten
- Neville Chamberlain:
- Edward Jewesbury
- Edward, Lord Halifax:
- Bernard Archard
- General Sir Hastings Ismay:
- Paul Hardwick
- General Sir John Dill:
- Peter Copley
- General Sir Edmund Ironside:
- Noel Coleman
- Clement Attlee:
- Barry Jackson
- Paul Reynaud:
- Jacques Duby
- General Maurice Gamelin:
- Andre Maranne
- Brigadier-General Charles de Gaulle:
- Jacques Boudet
- Harry Hopkins:
- Robert Arden
- Queen Elizabeth:
- Amanda Walker
- Anthony Eden:
- Richard Easton
- Sir Charles Wilson:
- Geoffrey Keen
- General Sir Harold Alexander:
- Terence Alexander
- General Maitland Wilson:
- Robert Raglan
- Admiral Sir Bertram Ramsay:
- Noel Johnson
- [Actor]:
- Desmond Cullum-Jones
- [Actor]:
- Derek Ensor
- [Actor]:
- Julian Fox
- [Actor]:
- Alan Halley
- [Actor]:
- Adam Norton
- [Actor]:
- Doyle Richmond
- [Actress]:
- Doreen Ubels