John Rubinstein: John Rubinstein. Actor: Family. John Rubinstein is an actor, director, composer, singer, and teacher. He was born in Los Angeles, California in 1946, the same year his father, the renowned Polish-born concert pianist Artur Rubinstein, became an American citizen. He is the youngest of four children. His sister, Eva, danced and acted on Broadway, originating the role of "Margot" in the original production of "The Diary of Anne Frank"; she...