Gary Cooper as Col. Billy Mitchell

Charles Bickford as Gen. Jimmy Guthrie

Ralph Bellamy as Congressman Frank R. Reid

Rod Steiger as Maj. Allan Guillion

Elizabeth Montgomery as Margaret Lansdowne

Fred Clark as Col. Moreland

James Daly as Lt. Col. Herbert White

Jack Lord as Lt. Cmdr. Zachary 'Zack' Lansdowne

Peter Graves as Capt. Bob Elliott

Darren McGavin as Capt. Russ Peters

Robert F. Simon as Admiral Gage

Charles Dingle as Senator Fullerton

Dayton Lummis as General Douglas MacArthur

Tom McKee as Capt. Eddie Rickenbacker

Stephen Roberts as Major Carl Spaatz

Herbert Heyes as General John J. Pershing

Robert Brubaker as Major H. H. Arnold

Phil Arnold as Fiorello LaGuardia

Ian Wolfe as President Calvin Coolidge

Will Wright as Admiral William S. Sims

Gregory Walcott as Howard Millikan