Actors Keegan-Michael Key and Charlayne Woodard discuss their starring roles in a new production of Shakespeare’s “Hamlet” at the Public Theater. Key plays Hamlet’s friend Horatio, and Woodard plays Hamlet’s mother Queen Gertrude in the classic story of a murdered king, a tormented prince and an uncle who assumes the throne. “Hamlet” runs through Sept. 3 at the Public Theater (425 Lafayette St.).  Phoebe Robinson guest hosted this segment of "The Leonard Lopate Show."