Helen McCrory

as Kathryn Villiers

Richard Gere

as Max Finch

Billy Howle

as Caden Finch

Sinéad Cusack

as Maggie Barns

Paul Ready

as Nick Caplan

Pippa Bennett-Warner

as Lauren Elgood

Sarah Lancashire

as Angela Howard MP

Danny Sapani

as Prime Minister Jahan Zakari

Joseph Mawle

as Scott Ruskin

Elena Anaya

as Sofia