Grey's Anatomy alum T.R. Knight is heading back to Broadway, according to The Associated Press.
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Knight, who played Dr. George O'Malley for five seasons on ABC's hit medical drama, will star in David Mamet's A Life in the Theatre as John, a novice actor who's counseled by a veteran performer (Patrick Stewart).
Rehearsals for the play are scheduled for August, and previews are slated to begin in September.