George B. Seitz Director Robert Montgomery John O'Hara Actor Virginia Bruce Frances Blake Actor Lewis Stone Maj. Walter Reed Actor Andy Devine Charlie Spill Actor Henry Hull Dr. Jesse Lazear Actor Charles Coburn Dr. Finlay Actor Buddy Ebsen "Jellybeans" Actor Henry O'Neill Major Gorgas Actor Janet Beecher Miss MacDade Actor William Henry Breen Actor Alan Curtis Brinkerhof Actor Sam Levene Busch Actor Stanley Ridges Dr. James Carroll Actor Phillip Terry Louis Ferguson Actor Jonathan Hale Maj. Gen. Leonard Wood Actor C. Henry Gordon Col. Wiggins, Medical Corp (uncredited) Actor Frank O'Connor Officer (uncredited) Actor William Arnold Officer (uncredited) Actor Larry Steers Officer (uncredited) Actor Harry Strang Aide (uncredited) Actor Roger Converse Lieutenant (uncredited) Actor Harold Schlickenmayer Corporal (uncredited) Actor Francisco Maran Interpreter (uncredited) Actor Brick Sullivan Sergeant (uncredited) Actor Hudson Shotwell Cavalryman (uncredited) Actor Brent Sargent Cavalryman (uncredited) Actor Richard Wessel Cavalryman (uncredited) Actor Ted Oliver Cavalryman (uncredited) Actor John Patterson Cavalryman (uncredited) Actor Edward Chodorov Screenwriter Jack Cummings Producer Lester White Cinematographer Blanche Sewell Film Editing William Axt Original Music Cedric Gibbons Art Director