Who is the only person to win an acting Oscar by starring in an Alfred Hitchcock film?

Joan Fontaine was awarded the Oscar for "Best Actress" in director Alfred Hitchcock's 1941 thriller "Suspicion." Fontaine is the only performer to win an acting Oscar in a Hitchcock film.

Fontaine, who died in 2013 at 96, appeared in more than 45 feature films in a career that spanned five decades, but this was her only Oscar win. She was nominated for best actress in Hitchcock's 1940 film "Rebecca". She received a third "Best Actress" nomination for her role in the romantic drama "The Constant Nymph" (1943).

Fontaine, who is the younger sister of actress Olivia de Havilland, made her last film in 1966 and then concentrated on radio, television and stage roles. She was married four times and had two children, one which was adopted.

Hitchcock, who was known throughout Hollywood as the "Master of Suspense", had 16 films nominated for assorted Oscars. Four of his films, "Foreign Correspondent", "Suspicion", "Spellbound" and "Rebecca" were nominated for the "Best Picture" Oscar, with "Rebecca" being the only winner. Hitchcock, who died in 1980 at 80, was nominated five times for the "Best Director" Oscar, but did not win.

Hitchcock directed 53 feature films and was known to make cameo appearances in his own movies, usually as someone in the background that the camera picks up. In the 1969 film "Topaz" Hitchcock is seen being pushed in a wheelchair. The chair stops, he gets up and greets a man and they walk off to the right of the camera.