In November 1962, Blyden tried his hand at stage directing in the Broadway production of Harold, starring Anthony Perkins and Don Adams. The production closed after twenty performances. In February 1967, Blyden replaced Martin Balsam in the Broadway production of You Know I Can't Hear You When the Water's Running. Blyden's second stage directing effort was the play The Mother Lover, in which he also starred. The production also featured Eileen Heckart and Valerie French and premiered at the Booth Theatre on February 1, 1969. In March 1972, he portrayed the role of "Hysterirum" in the revival of A Funny Thing Happened on the Way to the Forum, starring Phil Silvers, which Blyden also produced. He won the Tony Award for Best Featured Actor in a Musical for his work in the play.