Kristen Stewart

Diana

Timothy Spall

Major Alistair Gregorys

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

Sally Hawkins

Maggie

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)

Ben Plunkett-Reynolds

Footman Brian

Ryan Wichert

Staff Sergeant Wood

Michael Epp

Lance Corporal Jacobs

Tom Hudson

Police Constable Thomas

James Gerard

Police Constable Field

Thomas Douglas

John Spencer

Ian Ashpitel

Vicar

Greta Bücker

Diana (Late Teenage Years)

Camille Loup Moltzen

Boy (Roadhouse Cafe)

Niklas Kohrt

Prince Andrew

Peter Lee

Church Organist

Olga Hellsing

Sarah Ferguson (uncredited)

Matthias Wolkowski

Prince Edward (uncredited)

Oriana Gordon

Lady Sarah Chatto (uncredited)

Sami Amber

Boy (Roadhouse Cafe) (uncredited)