Phyllida Lloyd Director Meryl Streep Margaret Thatcher Actor Jim Broadbent Denis Thatcher Actor Alexandra Roach Young Margaret Thatcher Actor Harry Lloyd Young Denis Thatcher Actor Olivia Colman Carol Thatcher Actor Iain Glen Alfred Roberts Actor Victoria Bewick Muriel Roberts Actor Nicholas Farrell Airey Neave Actor John Sessions Edward Heath Actor Anthony Head Geoffrey Howe Actor David Westhead Shadow Minister Actor Julian Wadham Francis Pym Actor Richard E. Grant Michael Heseltine Actor Angus Wright John Nott Actor Roger Allam Gordon Reece Actor Michael Pennington Michael Foot Actor Susan Brown June Actor Phoebe Waller-Bridge Susie Actor Abi Morgan Screenwriter Damian Jones Producer François Ivernel Executive Producer Cameron McCracken Executive Producer Tessa Ross Executive Producer Adam Kulick Executive Producer Elliot Davis Cinematographer Justine Wright Film Editing Thomas Newman Original Music Simon Elliott Production Design Bill Crutcher Supervising Art Direction Nick Dent Art Director Annie Gilhooly Set Decoration Consolata Boyle Costume Design Nina Gold Casting