The Hereditary Principle
S4 E7 November 15, 2020 0h 51m
★ 7.9
Source:
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Overview
Grappling with mental health issues, Margaret seeks help and discovers an appalling secret about estranged relatives of the royal family.
Guest Stars
Tom Burke
Dazzle Jennings
Harry Treadaway
Roddy Llewellyn
Nancy Carroll
Anne Tennant
Richard Teverson
Colin Tennant
Gemma Jones
Penelope Carter
Kevin Hand
Margaret's Butler
Geoffrey Breton
Mark Phillips
Trudie Emery
Katherine Bowes-Lyon
