At the end of the movie, the "Hollywood" stars (Clift, Douglas etc.), are not credited, however a panoramic coda does credit the principal military service members who portrayed themselves in the film. It shows them standing at attention in front of a C-54, with their names and ranks scrolling across.
Opening credits prologue: This picture was made in occupied Germany. All scenes were photographed in the exact locale associated with the story, including episodes in the American, French, British and Russian sectors of Berlin.
With the exception of Montgomery Clift and Paul Douglas, all military personnel appearing in this film are actual members of the U.S. Armed Forces on duty in Germany.