The Unsuspected is a 1947 American mystery film noir directed by Michael Curtiz and starring Claude Rains, Audrey Totter, Ted North, Constance Bennett, Joan Caulfield, and Hurd Hatfield. The film was based on the 1946 novel of the same title by Charlotte Armstrong. The screenplay was co-written by Bess Meredyth, who was married to director Curtiz.

William Claude Rains was a British and American actor whose career spanned almost seven decades. After his American film debut as Dr. Jack Griffin in The Invisible Man (1933), he appeared in The Adventures of Robin Hood (1938), Mr. Smith Goes to Washington (1939), The Wolf Man (1941), Casablanca (1942), Kings Row (1942), Notorious (1946), Lawrence of Arabia (1962), and The Greatest Story Ever Told (1965).