Kristen Stewart

Diana

Timothy Spall

Major Alistar Gregory

Sally Hawkins

Maggie

Jack Nielen

William

Freddie Spry

Harry

Jack Farthing

Charles

Sean Harris

Darren

Stella Gonet

The Queen

Richard Sammel

Prince Philip

Elizabeth Berrington

Princess Anne

Lore Stefanek

Queen Mother

Amy Manson

Anne Boleyn

James Harkness

Footman Paul

Laura Benson

Angela (Dresser)

Wendy Patterson

Maria (Older Maid)

Libby Rodliffe

Pamela (Maid)

John Keogh

Michael (Charles' Valet)

Marianne Graffam

Barbara (Nanny)