The producers considered replacing seventy-year-old Robert Mitchum with fifty-nine-year-old James Coburn, due to concerns that Mitchum was too old and ill to reprise the role of Victor "Pug" Henry.
The series performed disappointingly in terms of viewing figures compared to The Winds of War (1983).
Ralph Bellamy was eighty-three when he played President Franklin D. Roosevelt, who died at the age of sixty-three.
Most Captains in the U.S. Navy were in their thirties or forties during World War II. Robert Mitchum turned seventy during the filming of this mini-series.
The one thousand four hundred ninety-two page script included two thousand seventy scenes, three hundred fifty-eight speaking parts, seven hundred fifty-seven locations around the world, and employed more than forty-four thousand actors, actresses, and extras.