A dynamic, pixie-like singer and dancer, Joel Grey is perhaps best known for his performance as the unctuous Emcee in "Cabaret" on Broadway (1966) and on the big screen (1972). The son of Yiddish revue performer Mickey Katz, he spent part of his early years performing with his father. Although Grey made his stage debut at age nine in "On Borrowed Time" at the Cleveland Playhouse, his "break" came seven years later when Eddie Cantor saw him performing in a Mickey Katz revue and within a year booked the young performer on TV's "Colgate Comedy Hour" (NBC). He went on to make his feature film