Terry-Thomas

Cadogan de Vere Carlton-Browne

Acting

Peter Sellers

Prime Minister Amphibulos

Acting

Luciana Paluzzi

Princess Ilyena

Acting

Ian Bannen

Young King Loris

Acting

Thorley Walters

Colonel Bellingham

Acting

Raymond Huntley

Foreign Secretary Tufton-Slade

Acting

Miles Malleson

Resident Advisor Davidson

Acting

John Le Mesurier

Grand Duke Alexis

Acting

Marie Lohr

Lady Carlton-Browne

Acting

Kynaston Reeves

Sir Arthur Carlton-Browne

Acting

Ronald Adam

Sir John Farthing

Acting

John Van Eyssen

Hewitt

Acting

Nicholas Parsons

Rodgers

Acting

Irene Handl

Mrs. Carter

Acting

Harry Locke

Gaillardian commentator

Acting

Basil Dignam

Security Officer

Acting

Sam Kydd

Signaller

Acting

Robert Bruce

Major Miller

Acting

John Glyn-Jones

Newsreel Interviewer

Acting

Marianne Stone

Woman In Cinema

Acting

Margaret Lacey

Onlooker

Acting

Robert S. Young

Archivist

Acting

Kenneth Griffith

Sir John's Assistant (uncredited)

Acting

Mario Fabrizi

Deputy Minister (uncredited)

Acting

Katherine Keeton

Dancer

Acting

Bruno Barnabe

Maître d'

Acting

Max Brimmell

Waiter

Acting

Nicholas Bruce

King Loris' Equerry

Acting

Andre Charisse

Russian Minister

Acting

Alexis Chesnakov

First Russian Scientist

Acting

Anthony Chinn

Dignitary at Royal Pageant

Acting

Maurice Colbourne

First Official

Acting

Fiona Davie

Acting

John Drake

Acting

James Dyrenforth

Admiral

Acting

Rex Garner

Hotel Porter Removing Flowers

Acting

George Holdcroft

Security Man at Ministry

Acting

Julie Hopkins

Dancer

Acting

Harold Kasket

Acting

Kaplan Kaye

Acting

Dan Lester

US Delegate at UN Conference

Acting

Fred Machon

Delegate at UN Conference

Acting

Marne Maitland

Archipolagos

Acting

Alf Mangan

Delegate

Acting

Mark Mileham

Child

Acting

Patrick Mynhardt

British Soldier

Acting

Michael Partridge

Commandos Captain

Acting

Anthony Pendrell

Official

Acting

Frank Phillips

BBC Newsreader

Acting

Geremy Phillips

Italian Guard

Acting

Bill Rayment

Second Russian Scientist

Acting

Tony Spears

Delegate at UN Conference

Acting

Guy Standeven

Civil Servant

Acting

Austin Trevor

Secretary General

Acting

Jim Tyson

US Delegate at UN Conference

Acting

James Ure

Delegate at UN Conference

Acting

Ian Wilson

Onlooker

Acting

Michael Ward

Hotel Manager

Acting