Jonathan Hadary is an American actor.
Born in Chicago, Illinois and raised in Bethesda, Maryland, Hadary arrived at Tufts University already an accomplished actor. He was cast in many shows at Tufts, both student and faculty directed. During his sophomore year, he became an understudy for the Boston company of You're a Good Man Charlie Brown. This being the Vietnam era, the actor playing Charlie Brown was drafted. The actor playing Schroeder was moved to the Charlie Brown role, and Hadary took the part of Schroeder. He finished the Boston run of the show and the toured with it for some time.
Hadary made his New York City stage debut in the 1976 Playwrights Horizons staging of Albert Innaurato's Gemini. Critical acclaim for the off-Broadway production resulted in it transferring to PAF Playhouse and then to Circle Repertory Company, and finally to Broadway, where it ran for 1819 performances. Hadary worked off-Broadway again on the 1979 Howard Ashman and Alan Menken musical adaptation of Kurt Vonnegut's God Bless You, Mr. Rosewater, Ted Tally's 1980 play Coming Attractions, and the 1981 Tom Lehrer revue Tom Foolery.