Chief of Staff. Bérénice Marlohe  as Sévérine. [24] [25]  Marlohe described her character as being "glamorous and enigmatic", [23]  and that she drew inspiration from GoldenEye  villain  Xenia Onatopp  (played by  Famke Janssen ) in playing Sévérine. [26] Helen McCrory  as Clair Dowar, a British politician. [27] [28]  McCrory joined the