More cast changes for San Francisco Opera's upcoming season have been announced, both for the opening weekend performances. Bass-baritone Daniel Sumegi (pictured left) is singing the role of Count Walter in Luisa Miller, replacing Rafał Siwek. Instead of John Easterlin, tenor David Curry will make his Company debut in the role of Adolfo Pirelli in Sweeney Todd: The Demon Barber of Fleet Street. Both Siwek and Easterlin have withdrawn from the productions for "personal reasons." For those of you counting, these are the third and fourth cast changes announced for the season so far.