The eighth season of the British spy series "MI-5," which follows secret agents as they foil evil plots around the globe, begins with the fallout from Harry's kidnapping by the Russians. A mysterious organization known only as "Nightingale" is the ongoing focus of the eight episodes. And Lucas' relationship with CIA agent Sarah Caulfied (Genevieve O'Reilly), reignites concerns over his loyalty. This season also sees the exit of one of the few original cast members, Malcolm Wynn-Jones.
露西·劳莱丝,埃博妮·瓦戈兰斯,Rawiri Jobe,约瑟夫·纳瓦胡,艾瑞克·托马森,Albert Cho,Sia Trokenheim,Annie Duynhoven,Hayley Sproull,Kimberley Hill,Carly Binding
扎恩·迈克拉农,凯欧瓦·高登,杰西卡·马滕,Deanna Allison,珍娜·艾夫曼,布鲁斯·格林伍德,劳尔·特鲁希洛,图南汀·卡梅罗,亚历克斯·梅拉兹,泰瑞·塞尔皮科,Derek Hinkey,菲尔·伯克,克里斯托弗·海尔达尔,A·马丁内斯
莎莉·布雷顿,克里斯·马歇尔,Zahra Ahmadi,迪兰·卢埃林,芭芭拉·弗林,费莉西蒂·蒙塔古,杰德·哈里森,Melina Sinadinou,Eva Feiler,Isaac Vincent-Norgate,阿玛莉亚·维塔莱,彼得·戴维森,凯文·毕晓普,Kem Hassan,亚当·弗格蒂,艾玛·菲尔丁,丹·伦顿·斯金纳,Paul Bradley,彼得·兰迪,Abi Clarke,Emily Lloyd-Saini,丹尼·韦伯,尼古拉斯·伍德森,马尔科姆·斯托里,卡罗琳·皮克尔斯,杰夫·劳勒,舒雅德
刘怡伶,张哲通,陈罗密欧,黄暄婷,黄晶玲,刘子绚,邓伟德,欧萱,陈泓宇,沈琳宸,张奕恺,陈莉萍,翟思铭,郭坤耀,吴俐璇,朱泽亮,郑惠玉,姚懿珊,黄振隆,曾晓晴,郑六月,胡煜诗,萧歆霓,林昭婷,曾诗梅,卓芳娴,黄俊雄,陈丽贞,陈天文,修杰楷,郭亮,陈泰铭,陈慧慧,王玉清,苏智诚,田铭耀,周崇庆,赖宏恩,谢芷萱,蔡承峻,洪爱玲
肖恩·宾,詹姆斯·尼尔森-乔伊斯,汉娜·昂斯洛,杰克·麦克马伦,朱莉·格雷厄姆,劳拉·艾克曼,凯文·哈维,希尔莎-莫妮卡·杰克逊,迈克·诺布尔,鲍比·斯科菲尔德,达茜·肖,斯蒂芬·沃尔特斯