The drama, written by Sherwood boss James Graham, sees Walter play former Prime Minister Margaret Thatcher alongside Steve Coogan 's Brian Walden – the late Labour MP-turned-notorious political interviewer. First-look images show Walter transformed as Thatcher, decked out in her signature skirt suit and trademark hairstyle.

Channel 4 has released a first look at Succession star Harriet Walter as Margaret Thatcher in the British broadcaster’s upcoming James Graham drama Brian and Margaret. Deadline first revealed the two-part series in June and it will chronicle Thatcher's last TV interview,

Next up in the world of political dramas – and reenactments of real political events – is Channel 4’s Brian and Margaret, based on former Prime Minister Margaret Thatcher’s final television interview.

The first sneak peek of an upcoming Channel 4 drama, Brian and Margaret, has been revealed. The two-part drama will air next year on Channel 4 and tell the tale of the final ever television interview of former Prime Minister Margaret Thatcher and journalist Brian Walden back in 1989.

Stephen Frears-directed drama tells the story of Brian Walden's final interview with PM Margaret Thatcher, which set off a train of events leading to her eventual resignation.

Channel 4 has released a selection of images from its upcoming two-part drama Brian and Margaret, starring Steve Coogan and Harriet Walter. The Alan Partridge and Succession stars will feature together in the series, playing journalist Brian Walden and Margaret Thatcher respectively.

Dame Harriet Walter embodies Margaret Thatcher for new Channel 4 drama - Steve Coogan plays journalist Brian Walden in the two-part series about his 1989 interview with the then-prime minister.