The couple got involved in the summer production with their children, Sammy Kurtz, 5, and Katie Kurtz, 4, who will be extras in the show.Jill Kurtz said the commitment is a challenge well worth it.One day, we are going to look back and say it is the best summer we ever had, she said.Elliett, who admitted to being nervous and excited, flexed her musical muscles as the optimistic orphan.