Samantha Bond

as Queen Elizabeth II

David Walliams

as Jack Barker

Oliver Chris

as Prince Charles

Amanda Abbington

as Princess Anne

Johnny Vegas

as Spiggy

Lorraine Ashbourne

as Violet

Julia McKenzie

as The Queen Mother

Frances Barber

as Princess Margaret

Emily Aston

as Bev Threadgold

Emmanuel Ighodaro

as Tony Threadgold

Ellen Thomas

as Philomena Troussaint

Bronwyn James

as WPC Ludlow

Kathryn Drysdale

as Trish

Ricky Grover

as Oswald

Javone Prince

as Carlton

Karl Theobald

as Prison Governor

Matthew Steer

as Ian Livingstone-Chalk

Vincent Ebrahim

as Judge

Noah Bailey

as Prince Harry

Woody Melbourne

as Prince William

Matt Jamie

as Eccentric Pollster