Julie Christie character Diana Scott
Dirk Bogarde character Robert Gold
Laurence Harvey character Miles Brand
José Luis de Villalonga character Prince Cesare della Romita
Roland Curram character Malcolm
Basil Henson character Alec Prosser-Jones
Dante Posani character Gino
Umberto Raho character Signor Palucci
Alex Scott character Sean Martin
Brian Wilde character Basil Willett
Peter Bayliss character Lord Alex Grant
T.R. Bowen character Tony Bridges (as Trevor Bowen)
Georgina Cookson character Carlotta Hale
James Cossins character Mr. Basildon
Helen Lindsay character Felicity Prosser-Jones
Carlo Palmucci character Curzio della Romita
Ernest Walder character Kurt
Pauline Yates character Estelle Gold
Richard Bidlake character Rupert Crabtree
Annette Carell character Billie Castiglione
Jean Claudio character Raoul Maxim
Jane Downs character Julie (as Jane Downes)
Marika Rivera character Paris Party Host
Lucille Soong character Allie (uncredited)
Lydia Sherwood character Lady Brentwood (uncredited)
Ann Firbank character Sybil Martin (uncredited)
Tyler Butterworth character William Prosser-Jones (uncredited)
Vernon Dobtcheff character Art Critic at Ralph Riggs Exposure (uncredited)
John Schlesinger character Theatre Director (uncredited)
Silvia Dionisio character Prince Cesare della Romita's Daughter (uncredited)
Victor Harrington character Functionary at Charity Event (uncredited)
Derek Aylward character Party Guest (uncredited)
Zakes Mokae character Black Man at French Party (uncredited)
David Harrison character Charles Glass (uncredited)
Sidonie Bond character Gillian (uncredited)
Margaret Gordon character Helen Dawlish (uncredited)
Angus MacKay character Ivor Dawlish (uncredited)
Jane Pearl character Jane (uncredited)
Irene Richmond character Mrs. Glass (uncredited)
Hugo Dyson character Walter Southgate (uncredited)
Christopher Greatorex character Art Critic at Ralph Riggs Exposure (uncredited)
Hyma Beckley character Guest at Art Gallery Viewing (uncredited)
Nicholas Wright character Young Man in Opening Scene (uncredited)
John Woodvine character Customs Officer (uncredited)
Helen Stirling character Governess to Cesare Family (uncredited)
Ernest Blyth character Man at Airport (uncredited)
John Tatum character Man at Tube Station (uncredited)
Roy Lansford character Party Guest (uncredited)
Noel Davis character Shop Assistant (uncredited)
Lewis Alexander character Fortnum and Masons Customer (uncredited)
Peter Avella character Reporter (uncredited)
Jimmy Charters character Man on Tube Station Escalator (uncredited)
Mike Edmonds character Man in Street (uncredited)
Peter Evans character Man at Charity Raffle (uncredited)
Eden Fox character Waiter (uncredited)
Otto Friese character Man in Street (uncredited)
Sheila Gish character Cameo (uncredited)
Lew Hooper character Model Agency Staff (uncredited)
Gerry Judge character Waiter (uncredited)
Anthony Lang character Man at Airport (uncredited)
Pat Lewis character Woman at Airport (uncredited)
Leonard Llewellyn character Model Agency Staff / Airline Passenger (uncredited)
Ray Lovelock character Undetermined Role (uncredited)
Jack Mandeville character Tube Passenger (uncredited)
Mary Maxfield character Lady at Charity Raffle (uncredited)
Brian Moorehead character Leslie Page (uncredited)
Bob Raymond character Waiter / Porter (uncredited)
Arnold Schulkes character Mourner (uncredited)
Frank Shelley character Father Norton (uncredited)
Esme Smythe character Art Gallery Guest (uncredited)
Philip Stewart character Guest at Art Gallery Viewing (uncredited)
Graham Tonbridge character Art Gallery Guest (uncredited)
George Oliver character Tube Passenger (uncredited)
Ian Selby character Model Agency Staff (uncredited)