Robert Carlyle
Role: Prime Minister Robert Sutherland
A charismatic leader, driven by a desire to do what’s right for his country and his family. But these two things will come into conflict when his decision to conceal a misdemeanour by his daughter becomes public, forcing him to fight fires not only on the streets of the UK, but also within the corridors of Whitehall as a new crisis, one that threatens to upend his position, rears its head.
What have I seen him in before: What haven't you seen him in? Robert Carlyle is one of Britain's consistently great actors and a leading TV role is long overdue. You likely first saw Carlyle in his most iconic role as the loose cannon Begbie in 'Trainspotting'. He's also led the cast in 'The Fully Monty' and '28 Weeks Later' and most recently starred in 'Once Upon a Time' and 'The War of the Worlds'.

Victoria Hamilton
Role: Chief of Staff Anna Marshall
The PM’s brilliantly intelligent and sharp Chief of Staff. Her long marriage to husband Sam is beginning to stagnate when a former flame, Edin, from her time as a journalist in Bosnia returns to London and wants to rekindle their relationship. It soon becomes clear that Edin has accumulated some unwanted baggage during their estrangement and Anna must be careful that their relationship doesn’t jeopardise her career as well as her family.
What have I seen her in before: Hamilton played The Queen Mother in Netflix's 'The Crown for the first two seasons. She's also had roles in 'Doctor Foster', 'Victoria and Albert', 'Toast' and 'Lark Rise to Candleford'.

Richard Dormer
Role: Fraser Walker
One of the best crisis contingency planners the country has ever known. While his ability to overcome and tackle problems in his professional life comes as second nature, he’s not so adept in his personal life – leaving him with a destroyed marriage and increasingly distant kids. When his own father dies suddenly during the crisis the pressures, both personally and professionally, threaten to engulf him completely.
What have I seen him in before: Dormer played Beric Dondarrion on 'Game of Thrones' throughout its run. He also had roles in 'Fortitude', 'Rellik' and 2013 flick 'Good Vibrations'.

David Haig
Role: Home Secretary Archie Glover-Morgan
Ambitious, argumentative and not afraid to shout an unpopular view from the rooftops, Archie holds the third great office of the United Kingdom and has fought tooth and nail to get there. While his relationship with the Prime Minister is built on mutual respect, Archie will seize any opportunity for more power if such a chance presents itself.
What have I seen him in before: Another seasoned British actor, Haig has had roles in everything from 'The Thin Blue Line' to 'Downton Abbey' and most recently, 'Killing Eve'. He's also starred in 'Penny Dreadful', 'Yes, Prime Minister' and 'The Wright Way'.

Lucy Cohu
Role: Rachel Sutherland
A brilliant lawyer, Rachel’s legal expertise could be the factor that undoes her husband’s career. Every mother’s instinct is to do everything they can to protect their child and when Rachel coaches daughter Ellie when she is questioned about a friends overdose, she truly is doing just that. But no one is above the law and when slippery press secretary Peter Mott implicates her in perverting the course of justice, Rachel will find herself in a very different position to what she’s used to in court.
What have I seen her in before: Cohu is known for playing Princess Margaret in 'The Queen's Sister', Evelyn Brogan in 'Cape Wrath' and Alice Carter in 'Torchwood: Children of Earth'. She's also led the cast in the 'Maigret' TV movies and had roles in 'Ripper Street' and 'Broadchurch'.
