Who played Mary Poppins in the 1964 film?

Who played Rick Blaine in 'Casablanca'? Who played Ilsa Lund in 'Casablanca'? Who played Holly Golightly in 'Breakfast at Tiffany's'? Who played Norman Bates in 'Psycho' (1960)? In which film does a character say "Here's looking at you, kid"? In which film does a character say "Frankly, my dear, I don't give a damn"? In which film does a character say "I'm gonna make him an offer he can't refuse"? In which film does a character say "You talkin' to me?"