William A. Wellman Director, Producer Gary Cooper Michael "Beau" Geste Actor Ray Milland John Geste Actor Robert Preston Digby Geste Actor Brian Donlevy Sgt. Markoff Actor Susan Hayward Isobel Rivers Actor J. Carrol Naish Rasinoff Actor Albert Dekker Legionnaire Schwartz Actor Broderick Crawford Hank Miller Actor Charles Barton Buddy McMonigal Actor James Stephenson Maj. Henri de Beaujolais Actor Heather Thatcher Lady Patricia Brandon Actor G.P. Huntley Augustus Brandon Actor James Burke Lt. Dufour Actor Henry Brandon Legionnaire Renouf Actor Arthur Aylesworth Legionnaire Renault Actor Harry Woods Legionnaire Renoir Actor Harold Huber Legionnaire Voisin Actor Stanley Andrews Legionnaire Maris Actor Donald O'Connor Beau Actor Billy Cook John Actor Martin Spellman Digby Actor David Holt Augustus Actor Ann Gillis Isobel Actor Harvey Stephens Lt. Martin Actor George Chandler Legionnaire Cordier Actor Robert Carson Screenwriter William LeBaron Executive Producer Theodor Sparkuhl Cinematographer Archie Stout Cinematographer Thomas Scott Film Editing Alfred Newman Original Music Hans Dreier Art Director Robert Odell Art Director A.E. Freudeman Set Decoration Edith Head Costume Design