Ernst Udet
Among the stars in "S.O.S. Eisberg" were Leni Riefenstahl, who had just made her directorial debut in "The Blue Light" (1932). Riefenstahl, in her last film as an actress, co-starred with Gustav Diessl and Ernst Udet in the German version "S.O.S. Eisberg", and with Gibson Gowland and Rod La Rocque in the English version, "S.O.S. Iceberg". Ernst Udet, a former German ace in the First World War, in a cameo performance, flew in both versions.