MacArthur
The film portrays MacArthur's life from 1942, before the Battle of Bataan, to 1952, the time after he had been removed from his Korean War command by President Truman for insubordination, and is recounted in flashback as he visits West Point.
Gregory Peck
Douglas MacArthur
Ivan Bonar
Lt. Gen. Richard K. Sutherland
Ward Costello
Gen. George C. Marshall
Nicolas Coster
Colonel Sidney Huff
Marj Dusay
Jean MacArthur
Ed Flanders
President Harry S. Truman
Warde Donovan
General Shepherd
Branscombe Richmond
Korean Soldier
Jerry Holland
Aide
Art Fleming
The Secretary
Russell Johnson
Admiral King
Sandy Kenyon
General Wainwright
Robert Mandan
Representative Martin
Allan Miller
Colonel Diller
Dan O'Herlihy
President Roosevelt
Dick O'Neill
Colonel Whitney
Addison Powell
Admiral Nimitz
Tom Rosqui
General Sampson
G. D. Spradlin
General Eichelberger
Kenneth Tobey
Admiral Halsey
Garry Walberg
General Walker
Lane Allan
General Marquat
Barry Coe
Television Reporter
Everett Cooper
General Krueger
Charles Cyphers
General Harding
Manuel DePina
Prettyman
Jesse Dizon
Castro
Philip Kenneally
Admiral Doyle
John McKee
Admiral Leahy
Walter O. Miles
General Kenney
Gerald Peters
General Blamey
Eugene Peterson
General Collins
Beulah Quo
Ah Cheu
Alex Rodine
General Derevyanko
Yuki Shimoda
Prime Minister Shidehara
Fred Stuthman
General Bradley
Harvey Vernon
Admiral Sherman
William Wellman Jr.
Lieutenant Bulkeley
John Fujioka
Emperor Hirohito
Robert V. Barron
POW (uncredited)
Klair Bybee
Burial Detail Soldier (uncredited)
Howard Fujimoto
Korean Soldier (uncredited)
John Fujioka
Emperor Hirohito (uncredited)
Arthur Godfrey
Self (archive sound) (uncredited)
Bob Harks
Reporter (uncredited)
David Custer Kelly
Photographer on USS Missouri (uncredited)
Evan C. Kim
Major Akio Sakud (uncredited)
Lloyd Kino
Japanese Administrative Assistant (uncredited)
Branscombe Richmond
Korean Soldier (uncredited)
Shane Sinutko
Douglas (uncredited)
Ramon Sison
Lieutenant Colonel (Hospital Commander, Corregidor) (uncredited)
Greg van Wey
Sailor (uncredited)
John Stuart West
Lieutenant Aames (uncredited)
Marion Yuh
Mashito (uncredited)