James Mason
Field Marshal Erwin Rommel
Cedric Hardwicke
Dr. Karl Strolin
Jessica Tandy
Frau Lucie Marie Rommel
Luther Adler
Adolf Hitler
Everett Sloane
Gen. Wilhelm Burgdorf
Leo G. Carroll
Field Marshal Gerd von Rundstedt
George Macready
Gen. Fritz Bayerlein
Richard Boone
Capt. Hermann Aldinger
Eduard Franz
Col. Klaus von Stauffenberg
Desmond Young
Lt. Colonel Desmond Young
Paul Cavanagh
Lt. Col. Caesar von Hofaker
Dan O'Herlihy
Commando Captain
Michael Rennie
Narrator (voice)
Peter van Eyck
German Officer
John Hoyt
Field Marshal Wilhelm Keitel (uncredited)