Once again , a stellar cast has been assembled , headed by glorious german soprano dagmar schellenberger , the current reigning marschallin at the vienna state opera , and featuring a show - stopping guest appearance by hong kong ' s own operatic star warren mok 港乐再次请来巨星阵容，玛莎琳一角由现时于维也纳国家歌剧院担演同一角色的德国女高音舒仑贝格担任，并邀得香港本地著名歌剧男高音莫华伦客串演出。
