Robert Danvers

Peter Sellers

Marion

Goldie Hawn

Andrew

Tony Britton

Jimmy

Nicky Henson

John, the porter

John Comer

John's Wife

Diana Dors

Lady Heather

Judy Campbell

Julia Halforde-Smythe

Gabrielle Drake

Caroline

Geraldine Sherman

Claire the Bride

Nicola Pagett

Manager of Carlton Hotel

Thorley Walters

Nigel

Christopher Cazenove

Gilly Hunter

Ruth Trouncer

Paola

Françoise Pascal

Reporter

Robin Parkinson

Bryan

Tom Marshall

Reporter

Roy Skelton

Nigel's Girl Friend

Carolyn Seymour

Monsieur Le Guestier

Raf De La Torre

Reporter

Marianne Stone

Michel Le Guestier

Constantin de Goguel

Floor Waiter

Georges Lambert

Concierge

Andre Charisse

English Tourist in Lift

Avril Angers

Elevator Operator

John Serret

Autograph Hunter at Wedding

Margaret Lacey

Wedding Guest (uncredited)

Jack Armstrong

Guests at Wedding Reception

Lance Percival

Wedding Guest (uncredited)

Eric Barker

Guests at Wedding Reception

Mark Dignam

Wedding Guest (uncredited)

Ernest Blyth

Photographer (uncredited)

Hugh Elton

Wedding Guest (uncredited)

Mabel Etherington

Wedding Guest (uncredited)

Muriel Greenslade

Wedding Guest (uncredited)

Pearl Hackney

Wedding Guest (uncredited)

Victor Harrington

Wedding Guest (uncredited)

George Holdcroft

Wedding Guest (uncredited)

Juba Kennerley

Waiter (uncredited)

Roy Lansford

Sightseer at Wedding (uncredited)

Fred Machon

Reporter (uncredited)

James Payne

Reporter (uncredited)

Terry Sartain

Wine Taster (uncredited)

Ian Selby

Wedding Guest (uncredited)

John Tatham

Photographer (uncredited)

Cy Town

Cigar-Smoking Wedding Guest (uncredited)

Colin Vancao