Peter Sellers as Fred Kite / Sir John Kennaway

Ian Carmichael as Stanley Windrush

Terry-Thomas as Major Hitchcock

Richard Attenborough as Sidney De Vere Cox

Dennis Price as Bertram Tracepurcel

Margaret Rutherford as Aunt Dolly

Irene Handl as Mrs. Kite

Liz Fraser as Cynthia Kite

Miles Malleson as Windrush Sr., Stanley's father

Marne Maitland as Mr. Mohammed

John Le Mesurier as Waters

Raymond Huntley as Magistrate

Victor Maddern as Knowles

Kenneth Griffith as Dai

Fred Griffiths as Charlie

Donal Donnelly as Perce Carter

Sam Kydd as Shop Steward

John Comer as Shop Steward

Tony Comer as Shop Steward

Cardew Robinson as Shop Steward

Bruce Wightman as Shop Steward

Bill Rayment as Shop Steward

Marianne Stone as TV Receptionist

Terry Scott as Crawley

Ronnie Stevens as Hooper

Martin Boddey as Num Yum's Executive

Brian Oulton as Appts. Board Examiner

Malcolm Muggeridge as Himself, TV Panel Chairman

John Glyn-Jones as Detto Executive

Pauline Winter as Miss Forsydke

Maurice Colbourne as Missiles Director

Jeremy White as Young Chemist

Robin Ray as Young Chemist

Michael Bates as Bootle

John Van Eyssen as Reporter

Robert Bruce as Reporter

Michael Ward as Reporter

Stringer Davis as Reporter

Arthur Skinner as Photographer

William Dexter as Photographer

Eynon Evans as Truscott

Esma Cannon as Spencer

Robert S. Young as Owens

Roy Purcell as Police Inspector

Marion Shaw as Tea Girl

Wally Patch as Workman

Alun Owen as TV Producer

Muriel Young as Herself, TV Announcer

Frank Phillips as TV Announcer

Ian Wilson as Evangelist

Margaret Lacey as Empire Loyalist

George Selway as Union Jack Workman

David Lodge as Card Player

Keith Smith as Card Player

Kenneth J. Warren as Card Player

Basil Dignam as Minister of Labour

Harry Locke as Trade Union Official

John Adams as Constable (uncredited)

Chris Adcock as Actor (uncredited)

Jack Armstrong as Man in Court (uncredited)

Jack Berg as Factory Worker (uncredited)

Nigel Bernard as Studio Floor Manager (uncredited)

Jim Brady as Missiles Worker (uncredited)

Fay Bura as Audience Member (uncredited)

Alf Casha as Man in Court (uncredited)

Jimmy Charters as Missiles Worker (uncredited)

E. V. H. Emmett as Narrator (voice) (uncredited)

Mabel Etherington as Empire Loyalist (uncredited)

Chick Fowles as Solicitor (uncredited)

Tex Fuller as Factory Worker (uncredited)

Bob Grant as Card Player (uncredited)

Hilda Green as Nudist (uncredited)

Dave Griffiths as Factory Worker (uncredited)

Victor Harrington as Reporter (uncredited)

George Hilsdon as Reporter (uncredited)

Lindsay Hooper as Downing Street Butler (uncredited)

Billy John as Factoy Worker (uncredited)

Gertrude Kaye as Empire Loyalist (uncredited)

Frederick Kelsey as Clerk of Court (uncredited)

Juba Kennerley as Empire Loyalist (uncredited)

Julie La Rousse as Tennis Player (uncredited)

John Leyton as Recruit to Detto (uncredited)

Dickey Luck as Factory Worker/Lorry Driver (uncredited)

Jack Mandeville as Solicitor (uncredited)

Vicky Marshall as Tea Girl (uncredited)

Colin McKenzie as Reporter (uncredited)

Jimmy Millar as Missiles Worker (uncredited)

Cecil Paul as Reporter (uncredited)

Geremy Phillips as Youth (uncredited)

Harry Phipps as Missiles Worker (uncredited)

Bob Raymond as Factory Worker (uncredited)

Ernie Rice as Missiles Worker (uncredited)

Johnny Rossi as Actor (uncredited)

Pat Ryan as Reporter (uncredited)

Jack Sharp as Official (uncredited)

Sheila Sim as Visitor (uncredited)

Stan Simmonds as Factory Worker (uncredited)

Tony Spears as Reporter (uncredited)

George Spence as Missiles Worker (uncredited)

Philip Stewart as Solicitor (uncredited)

Fred Stroud as Reporter (uncredited)

Joseph Tregonino as Empire Loyalist (uncredited)

Robert Vossler as Policeman (uncredited)

Billy Wilmot as Missiles Worker (uncredited)

Bob Wright as Reporter (uncredited)

Paula Wright as Nudist (uncredited)