Official website: https://www.channel4.com/programmes/longford
Jim Broadbent
Lord Longford
Lindsay Duncan
Lady Elizabeth Longford
Samantha Morton
Myra Hindley
Andy Serkis
Ian Brady
Kate Miles
Rachel Pakenham
Alex Blake
Paddy Packenham
Sarah Crowden
Lady Tree
Robert Pugh
Harold Wilson
Anton Rodgers
Willie Whitelaw
Kika Markham
Governor Wing