Complex sentence: In 1976 he slapped an actor during the curtain call for the Broadway musical "Rex", and in 1991 he hit his co-star (Evan Handler) on the backside with a sword during a Broadway performance of "I Hate Hamlet".
Split into simpler sentences: In 1976 he slapped an actor during the curtain call for the Broadway musical, "Rex". In 1991 he hit co-star Evan Handler on the backside with a sword during a Broadway performance of "I Hate Hamlet".