It was announced Thursday that Knight, who played Dr. George O'Malley on ABC's medical drama, will star opposite Patrick Stewart in David Mamet's "A Life in the Theatre." Rehearsals are set to begin in August.
Knight will play the role of John, a relative newcomer to acting who's counseled by a veteran performer. Stewart, starring as the older actor, last appeared on Broadway in 2008 in "Macbeth" and received a Tony Award nomination.
"A Life in the Theatre" premiered in 1977 in Chicago and opened off-Broadway that year. Previews for the new production with Knight and Stewart are scheduled to begin in September.
