Lew Ayres

as Professor Cabel

as Doc

as Bill Atherton

as Com. Joseph Beckerman

as Vaslovik

as Mandemus

as Prof. Dylan MacAuley

as Mr. Ames

as President Charles Carter Durant

as Mac McAllister

as The Vice President

as Dr. Patrick J. Cory

as John Howard Tracy

as Lin Vanner / Lindley Brown

as Robert Richardson

as Larry Hannaford

as Scott Elliott

as Oliver Duffy

as James Kildare

as James Kildare

as Philip S. Griswold III

as Eddie Burgess

as Dr. James Kildare

as Ned Seton

as Bill Dexter

as Pat Gilbert

as Michael Rand

as Kid Mason

as Louie Ricarno

as Paul Bäumer

as Pierre