Norman Wisdom as Norman

Lana Morris as Penny

Belinda Lee as Sonia

Jerry Desmonde as Jackson

Karl Stepanek as Lom

Garry Marsh as British Delegate

Inia Te Wiata as King of Tawaki

Evelyn Roberts as Sir Horace

Violet Farebrother as Queen of Tawaki

Martin Miller as Swiss Tailor

Eugene Deckers as Day Liftman

Hugh Morton as Mitchell

Cyril Chamberlain as British Delegate

Lisa Gastoni as Chambermaid

Harold Kasket as Enrico

Beverley Brooks as Air Hostess

Michael Ward as Photographer

Derek Sydney as Lesnevitch

Peter Taylor as Gritter

Josef Behrmann as Rietz

Chris Adcock as Russian Delegate (uncredited)

Jack Armstrong as Delegate (uncredited)

Julia Arnall as Waitress (uncredited)

Susan Beaumont as (uncredited)

Brian Bedford as Clapper Boy (uncredited)

Christopher Beeny as Lennie Grove (uncredited)

Paul Beradi as Conference Official (uncredited)

Nigel Bernard as Airline Passenger (uncredited)

Ernest Blyth as Guest (uncredited)

Peter Bryant as Jack Grove (uncredited)

Aza Caralova as Russian Official (uncredited)

Dennis Carnell as Actor in Play / Boat Passenger (uncredited)

Jacques Cey as Tailor's Assistant (uncredited)

Pauline Chamberlain as Stage Performer (uncredited)

Alexis Chesnakov as Russian General (uncredited)

Anthony Chinn as Tawaki Delegate (uncredited)

Peggy Ann Clifford as Chambermaid (uncredited)

Maurice Colbourne as British General (uncredited)

Mike Conner as Assistant Director (uncredited)

Austin Cooper as Hotel Staff (uncredited)

Ivan Craig as Miguel (uncredited)

Dan Cressey as Guest (uncredited)

George Curtis as Actor in Greek Play (uncredited)

Dan Darnelli as Embassy Guest (uncredited)

Fred Davis as Hotel Porter (uncredited)

Doreen Dawn as (uncredited)

Reggie de Beer as Embassy Guest (uncredited)

Alf Dean as Bodyguard (uncredited)

Margaret Downs as Daphne Grove (uncredited)

Richard Duke as Police Constable (uncredited)

Ruth Dunning as Gladys Grove (uncredited)

Peter Elliott as Liftman (uncredited)

Mabel Etherington as Guest (uncredited)

Edward Evans as Bob Grove (uncredited)

Roy Everson as Conference Official (uncredited)

Felix Felton as Ministry Official (uncredited)

Chick Fowles as Guest (uncredited)

Philip Gilbert as Pilot (uncredited)

Alex Graham as Embassy Guest / Fashion Show Assistant (uncredited)

Muriel Greenslade as Airline Passenger (uncredited)

Pat Hagan as American Delegate (uncredited)

Victor Hagan as American Delegate (uncredited)

Philip Harben as Self (uncredited)

Charles Hawtrey as Play Director (uncredited)

Renee Heimer as Guest (uncredited)

Robert Henderson as American General (uncredited)

Laurence Hepworth as Delegate (uncredited)

George Hilsdon as Swedish Delegate (uncredited)

Andy Ho as Chinese Delegate (uncredited)

MacDonald Hobley as Self (uncredited)

George Holdcroft as Embassy Guest / Café Patron (uncredited)

John Howard as Swiss Customs Official (uncredited)

George Howell as Pageboy (uncredited)

Gordon Humphries as Hotel Guest (uncredited)

Joan Ingram as Airline Passenger (uncredited)

Barry Johns as Soundman / Actor in Greek Play (uncredited)

Philip Johns as Film Technician (uncredited)

Gertrude Kaye as Woman at Swiss Airport (uncredited)

Frederick Kelsey as Minister (uncredited)

Aileen Lewis as Secretary (uncredited)

Leonard Llewellyn as Hotel Clerk (uncredited)

Dickey Luck as Stagehand (uncredited)

Fred Machon as Airline Passenger (uncredited)

Jack Mandeville as Minister (uncredited)

Louis Matto as Café Waiter (uncredited)

Mary Maxfield as Boat Passenger / Guest (uncredited)

Manny Michael as Police Sergeant (uncredited)

Andre Mikhelson as Russian Delegate (uncredited)

John More as Delegate / Sir Humphrey Griffiths (uncredited)

Lola Morice as Fashion Show Patron (uncredited)

Jim Morris as Russian Officer (uncredited)

Ronan O'Casey as American Delegate (uncredited)

Cecil Paul as Embassy Guest (uncredited)

Howard Pays as TV Director (uncredited)

Joe Phelps as Hotel Porter (uncredited)

Paul Phillips as French Delegate (uncredited)

Lionel Pope as Airline Passenger / American Delegate (uncredited)

Ernie Priest as Russian Officer (uncredited)

Bob Raymond as Brodnian Delegate (uncredited)

Bernard Rebel as Bearded Delegate (uncredited)

Nancy Roberts as Granny Grove (uncredited)

Arthur Sandifer as Russian Delegate (uncredited)

Stuart Saunders as Police Constable Outside Ministry (uncredited)

Gerik Schjelderup as Conference Chairman (uncredited)

Bruce Seton as Fabian of the Yard (uncredited)

Jack Silk as American Delegate (uncredited)

Jeff Silk as Photographer (uncredited)

Esme Smythe as Hotel Guest (uncredited)

Tony Spears as British Delegate (uncredited)

Guy Standeven as Onlooker (uncredited)

Charles Stevenson as Man in Crowd (uncredited)

Philip Stewart as Downing Street Policeman

Marianne Stone as Florrie (uncredited)

Sheila Sweet as Pat Grove (uncredited)

Graham Tonbridge as Conference Official (uncredited)

Joe Wadham as Airline Passenger (uncredited)

Ronnie Waldman as Self (uncredited)

Pearl Walters as Embassy Guest (uncredited)

Christopher Warbey as Pageboy (uncredited)

John Wilder as Delegate (uncredited)

Billy Wilmot as Delegate (uncredited)

Ian Wilson as Extra (uncredited)

Paula Wright as Woman in Crowd (uncredited)