Lafayette Escadrille

Tab Hunter Thad Walker

Etchika Choureau Renee Beaulieu

Marcel Dalio Drill Sergeant

David Janssen Duke Sinclair

Paul Fix U.S. General

Veola Vonn The Madam

Will Hutchins Dave Putnam

Clint Eastwood George Moseley

Robert Hover Dave Judd (as Bob Hover)

Tom Laughlin Arthur Blumenthal

Brett Halsey Frank Baylies

Henry Nakamura Jimmy

Maurice Marsac Sgt. Parris

Raymond Bailey Amos J. Walker

William Wellman Jr. Bill Wellman Sr.

Jody McCrea Tom Hitchcock

Denny Devine Lawrence 'Red' Scanion (as Dennis Devine)

Phil Adams Landram Ovington (uncredited)

Louis Mercier Captain Honore (uncredited)

Dick Rich Policeman (uncredited)