NEW ORLEANS — In New Orleans these days, even a magician can run out of tricks. Harry Anderson, the illusionist, comic and former star of sitcoms like “Night Court” and “Dave’s World,” has lived in New Orleans since 2000, when he left Hollywood with his wife, the former Elizabeth Morgan. They rode out Hurricane Katrina in the French Quarter, in the building that houses Oswald’s Speakeasy, Mr. Anderson’s nightclub. Their home, whose ground floor was given over to Sideshow, their magic and curiosity shop, was in another building in the Quarter. In the weeks after the storm, even before the...