I heard the following story from a cinema expert guy: it was a play with Jack Lemmon and Walter Matthau, Walter representing a beggar and Lemmon play a stylish elegant character.
At the end of the play some people from the audience were interviewed, Jack was highly praised for his performance and was called a very good actor, while Walther Matthau was called a beggar, people thought he was a real beggar.
Harry was a actor like Walter Matthau, he dont play the character, he really was the character.
Harry was one of the great.
RIP