Who played Rhett Butler in 'Gone with the Wind'?

Who played Raymond Babbitt in 'Rain Man'? In which film is Raymond Babbitt a character? In which film is Benjamin Braddock a character? Who played Mrs. Robinson in 'The Graduate'? Who played Dorothy Gale in 'The Wizard of Oz'? In which film is Rick Blaine a character? In which film is Ilsa Lund a character? Who played Norma Desmond in 'Sunset Boulevard'?