Jim ButzActor Jim Butz, who won audiences and Kevin Kline awards for his performances in Shakespeare Festival St. Louis productions of “Julius Caesar” and “Hamlet,” will star in this year’s double festival production in Forest Park.Butz will play Prince Hal in “Henry IV” — a production that combines “Henry IV, Part 1” and “Henry IV, Part 2” — and the same character after he is crowned in the festival’s second production, “Henry V.”