Relatively fast-paced and engrossing most of the way, Nazi Agent was the feature film debut of director Jules Dassin, formerly of MGM's short-subject department. Dassin went on to direct several groundbreaking crime dramas for Universal before finding himself blacklisted during the Hollywood "witch hunts." He continued his career in Europe, helming such genuine classics as Never on Sunday (1959). A lyric soprano, Ann Ayars spent a mostly unrewarding 1941-1943 in MGM potboilers before leaving films in favor of the New York City Opera.
by Hans J. Wollstein review