My fiance' and I were both discussing if we are supposed to invite his 2 friends who will be ushers to the rehearsal/dinner? We are fine either way- just wasn't sure what the etiquette was. They won't be doing anything in the actual ceremony, as our grandparents and parents will seat themselves with their spouses', etc. They will just seat our other guests.
So what about you guys? Would you invite ushers and their date/family/guest to the rehearsal dinner as well? I don't want to have additional meals for my FIL's to pay for, if its not necessary.