Meryl Streep character Margaret Thatcher
Anthony Stewart Head character Geoffrey Howe
Harry Lloyd character Young Denis Thatcher
Jim Broadbent character Denis Thatcher
Susan Brown character June
Alice da Cunha character Cleaner
Phoebe Waller-Bridge character Susie
Iain Glen character Alfred Roberts
Alexandra Roach character Young Margaret Thatcher
Victoria Bewick character Muriel Roberts
Olivia Colman character Carol Thatcher
Eloise Webb character Young Carol
Sylvestra Le Touzel character Hostess 1949
Michael Culkin character Host 1949
Michael Cochrane character William
Nicholas Farrell character Airey Neave
John Sessions character Edward Heath
David Westhead character Shadow Minister
Julian Wadham character Francis Pym
Richard E. Grant character Michael Heseltine
Roger Allam character Gordon Reece
Stephen Boxer character Cabinet Ministers
Simon Chandler character Cabinet Ministers
Michael Pennington character Michael Foot
Andrew Havill character Cabinet Ministers
Matthew Marsh character Alexander Haig
Nicholas Jones character Admiral Leach
David Rintoul character Admiral Fieldhouse
Pip Torrens character Ian Gilmour
Michael Maloney character Doctor
Robert Portal character Grey Suited Guest 1949
Angela Curran character Crawfie
David Cann character TV Interviewer
Rupert Vansittart character Cabinet Minister
Stephanie Jacob character Female Guest 1949