George Segal

Character: Robby Ross

Jacqueline Bisset

Character: Natasha O'Brien

Robert Morley

Character: Maximilian Van Devere

Jean-Pierre Cassel

Character: Louis Kohner

Philippe Noiret

Character: Jean-Claude Moulineau

Jean Rochefort

Character: August Grandvilliers

Gigi Proietti

Character: Ravello

Stefano Satta Flores

Character: Fausto Zoppi

Madge Ryan

Character: Beecham

Frank Windsor

Character: Blodgett

Peter Sallis

Character: St. Claire

Tim Barlow

Character: Doyle

John Le Mesurier

Character: Dr. Deere

Joss Ackland

Character: Cantrell

Jean Gaven

Character: Salpetre

Daniel Emilfork

Character: Saint-Juste

Jacques Marin

Character: Massenet

Jacques Balutin

Character: Chappemain

Jean Parédès

Character: Brissac

Michael Chow

Character: Soong

Anita Graham

Character: Blonde

Nicholas Ball

Character: Skeffington

David Cook

Character: Bussingbill

Nigel Havers

Character: Counterman

John Carlisle

Character: Actor

Sheila Ruskin

Character: Actress

Kenneth Fortescue

Character: Director

Struan Rodger

Character: Asst. Director

Derek Smith

Character: Man In Corridor

Marjorie Smith

Character: TV Receptionist

Aimée Delamain

Character: Old Woman

Lyall Jones

Character: Robby's Driver

Eddie Tagoe

Character: Mumbala

Caroline Langrishe

Character: Loretta

Jill Goldston

Character: Restaurant Patron (uncredited)

Sylvia Kay

Character: Reporter (uncredited)

Ronald Leigh-Hunt

Character: Priest marrying Bobby and Natasha (uncredited)

Steven Meek

Character: Hotel Guest (uncredited)