If you count television episodes, the answer is Patricia Hitchcock, Alfred Hitchcock's daughter. She appeared in three films and ten episodes of Alfred Hitchcock presents.
If you are just counting movies, the answer is Clare Greet. She had speaking roles in eight Hitchcock films:
Number 13 - 1922
The Ring - 1927
The Manxman = 1929
Murder! - 1930
The Man Who Knew Too Much - 1934
Sabotage - 1936
Jamaica Inn - 1939
Lord Camber's Ladies (produced by Hitchcock) - 1932
If you are talking about lead actresses only, Grace Kelly and Ingrid Bergman each starred in three Hitchcock films. Grace Kelly starred in To Catch A Thief, Rear Window, and Dial M For Murder. Ingrid Bergman starred in Spellbound, Notorious, and Under Capricorn.
It's a tie between Grace Kelly and Ingrid Bergman, both making three films for Hitchcock. Kelly starred in To Catch A Thief (1955), Dial M For Murder (1954) and Rear Window (1954). Bergman starred in Spellbound (1945), Notorious (1945), and Under Capricorn (1949). Runner-up goes to Tippi Hedren with two films, The Birds and Marnie.
Alfred Hitchcock made cameo appearances in most of his own Movies.
Alfred Hitchcock, because he has been in almost every movie he has made. Other than him, James (Jimmy) Stewart has appeared in the most Alfred Hitchcock movies.
Clare Greet appeared in seven, though she never had a starring role. Ingrid Bergman and Grace Kelly each had three starring roles in Hitchcock films.
Clare Greet appeared seven, though she never had a starring role. Leo G. Carroll appeared in six, but also never had a starring role. Cary Grant and James Stewart each starred in four.
The master of suspense himself, Alfred Hitchcock, made cameos in most of his movies.
Leo G Carroll appeared in six Hitchcock movies: Rebecca, Suspicion, Spellbound, The Paradine Case, Strangers on a Train and North By Northwest.
James Stewart and Kim Novak.
John Williams
Alfred Hitchcock
Janet leigh
Alanna Uback is most well known for being an American film actress. She has appeared in several movies but is most known for being in Legally Blonde and Meet the Fockers.
Mel Blanc is deceased, but is the actor in the most American movies at 1007! (Unless you count Ron Jeremy). As for living, the highest count I've found is Ned Beatty with 156. Anyone?? Mickey Rooney has 326 acting credits from 1926 through 2011. (some are television roles).
Shahrukh Khan has acted in many movies. He has worked in large number of movies. Kajol is the actress, he is comfortable with.
Alfred Hitchcock
Suspense
Barbara Stanwyck
Janet leigh
It depends on what scares you, but most people can agree on Psycho.
Susan Sarandon
Tanya James is most well known for as an adult movie actress. She has appeared in numerous adult movies having started in the industry in the year 2002.
Alanna Uback is most well known for being an American film actress. She has appeared in several movies but is most known for being in Legally Blonde and Meet the Fockers.
Homage To Alfred Hitchcock. Now being done by Stan Lee, Nice.
The actress Sydnee Steele stars in pornographic movies. She doesn't make an appearance in actual movies. She is most popular in appearing in most adult entertainment films, or porn videos. Most of these films usually appear on websites, properly known as porn sites.
Lyubov Sokolova has had the most film and television roles. She had 368 roles in movies and television shows before she died in 2001.
Sobha from she was acted in tamil movies