Laurence Fox

as Prince Charles

Olivia Poulet

as Camilla Parker-Bowles

Michelle Duncan

as Lady Diana Spencer

Richard Johnson

as Lord Mountbatten

Peter Egan

as Prince Philip

Stella McCusker

as The Queen

Hayley Atwell

as Sabrina Guinness

Andrea Riseborough

as Anna Wallace

Simon Wilson

as Andrew Parker-Bowles

Alexandra Moen

as Princess Anne

Orla O'Rourke

as Sarah Spencer

Doreen Andrew

as Queen Mother

Charlotte Bradley

as Princess Margaret

Dominic Colenso

as Prince Andrew

Freya Berry

as Fiona

Sara James

as Christabel

Lucy Brown

as Georgina

Kieran D. Gough

as Henry

Laura Murphy

as Amanda