Colin Firth as King George VI

Geoffrey Rush as Lionel Logue

Helena Bonham Carter as Queen Elizabeth

Guy Pearce as King Edward VIII

Timothy Spall as Winston Churchill

Michael Gambon as King George V

Jennifer Ehle as Myrtle Logue

Derek Jacobi as Archbishop Cosmo Lang

Freya Wilson as Princess Elizabeth

Ramona Marquez as Princess Margaret

Richard Dixon as Private Secretary

Robert Portal as Equerry

Eve Best as Wallis Simpson

Paul Trussell as Chauffeur

Adrian Scarborough as BBC Radio Announcer

Andrew Havill as Robert Wood

Charles Armstrong as BBC Technician

Roger Hammond as Dr. Blandine Bentham

Calum Gittins as Laurie Logue

Dominic Applewhite as Valentine Logue

Ben Wimsett as Anthony Logue

David Bamber as Theatre Director

Jake Hathaway as Willie

Patrick Ryecart as Lord Wigram

Teresa Gallagher as Nurse

Simon Chandler as Lord Dawson

Claire Bloom as Queen Mary

Orlando Wells as Duke of Kent

Tim Downie as Duke of Gloucester

Dick Ward as Butler

John Albasiny as Footman

Danny Emes as Boy in Regent's Park

Anthony Andrews as Stanley Baldwin

John Warnaby as Steward

Roger Parrott as Neville Chamberlain

Dean Ambridge as Royal Marine (uncredited)

Julianne Buescher as Mrs. Cooper - Vocalist

James Currie as Binky (uncredited)

Graham Curry as Infantry (uncredited)

Tony Earnshaw as Policeman (uncredited)

Sean Talo as BBC Technician / Soldier (uncredited)