Robert F. Simon Studio, through which he became an understudy to Lee J. Cobb for the lead in Arthur Miller's "Death of a Salesman". Simon had two daughters, Barbara Ann Simon Callet (born 1941) and Susan Simon Thompson, and two sons, Robert Louis Simon (born 1950) and James A. Simon (born 1951). Simon's webpage does not include the name of his spouse(s). Simon appeared on Broadway in Clifford Odets's play, "Clash by Night". In 1949, he succeeded Lee J. Cobb as Willy Loman in "Death of a Salesman". His first film appearances were as Inspector Foley in "Where the Sidewalk Ends" (1950) and
Arthur Miller by Elia Kazan, and starring Lee J. Cobb as Willy Loman, Mildred Dunnock as Linda, Arthur Kennedy as Biff, and Cameron Mitchell as Happy. The play was commercially successful and critically acclaimed, winning a Tony Award for Best Author, the New York Drama Circle Critics' Award, and the Pulitzer Prize for Drama. It was the first play to win all three of these major awards. The play was performed 742 times. In 1949, Miller exchanged letters with Eugene O'Neill regarding Miller's production of "All My Sons". O'Neill had sent Miller a congratulatory telegram; in response, he wrote a letter that