Gregory Peck as Douglas MacArthur

Ivan Bonar as Lt. Gen. Richard K. Sutherland

Ward Costello as Gen. George C. Marshall

Nicolas Coster as Colonel Sidney Huff

Marj Dusay as Jean MacArthur

Ed Flanders as President Harry S. Truman

Warde Donovan as General Shepherd

Branscombe Richmond as Korean Soldier

Jerry Holland as Aide

Art Fleming as The Secretary

Russell Johnson as Admiral King

Sandy Kenyon as General Wainwright

Robert Mandan as Representative Martin

Allan Miller as Colonel Diller

Dan O'Herlihy as President Roosevelt

Dick O'Neill as Colonel Whitney

Addison Powell as Admiral Nimitz

Tom Rosqui as General Sampson

G. D. Spradlin as General Eichelberger

Kenneth Tobey as Admiral Halsey

Garry Walberg as General Walker

Lane Allan as General Marquat

Barry Coe as Television Reporter

Everett Cooper as General Krueger

Charles Cyphers as General Harding

Manuel DePina as Prettyman

Jesse Dizon as Castro

Philip Kenneally as Admiral Doyle

John McKee as Admiral Leahy

Walter O. Miles as General Kenney

Gerald Peters as General Blamey

Eugene Peterson as General Collins

Beulah Quo as Ah Cheu

Alex Rodine as General Derevyanko

Yuki Shimoda as Prime Minister Shidehara

Fred Stuthman as General Bradley

Harvey Vernon as Admiral Sherman

William Wellman Jr. as Lieutenant Bulkeley

John Fujioka as Emperor Hirohito

Robert V. Barron as POW (uncredited)

Klair Bybee as Burial Detail Soldier (uncredited)

Howard Fujimoto as Korean Soldier (uncredited)

John Fujioka as Emperor Hirohito (uncredited)

Arthur Godfrey as Self (archive sound) (uncredited)

Bob Harks as Reporter (uncredited)

David Custer Kelly as Photographer on USS Missouri (uncredited)

Evan C. Kim as Major Akio Sakud (uncredited)

Lloyd Kino as Japanese Administrative Assistant (uncredited)

Branscombe Richmond as Korean Soldier (uncredited)

Shane Sinutko as Douglas (uncredited)

Ramon Sison as Lieutenant Colonel (Hospital Commander, Corregidor) (uncredited)

Greg van Wey as Sailor (uncredited)

John Stuart West as Lieutenant Aames (uncredited)

Marion Yuh as Mashito (uncredited)