Julie Christie as Diana Scott

Dirk Bogarde as Robert Gold

Laurence Harvey as Miles Brand

José Luis de Vilallonga as Prince Cesare della Romita

Roland Curram as Malcolm

Basil Henson as Alec Prosser-Jones

Dante Posani as Gino

Umberto Raho as Signor Palucci

Alex Scott as Sean Martin

Brian Wilde as Basil Willett

Peter Bayliss as Lord Alex Grant

T.R. Bowen as Tony Bridges (as Trevor Bowen)

Georgina Cookson as Carlotta Hale

James Cossins as Mr. Basildon

Helen Lindsay as Felicity Prosser-Jones

Carlo Palmucci as Curzio della Romita

Ernest Walder as Kurt

Pauline Yates as Estelle Gold

Richard Bidlake as Rupert Crabtree

Annette Carell as Billie Castiglione

Jean Claudio as Raoul Maxim

Jane Downs as Julie (as Jane Downes)

Marika Rivera as Paris Party Host

Lucille Soong as Allie (uncredited)

Lydia Sherwood as Lady Brentwood (uncredited)

Ann Firbank as Sybil Martin (uncredited)

Tyler Butterworth as William Prosser-Jones (uncredited)

Vernon Dobtcheff as Art Critic at Ralph Riggs Exposure (uncredited)

John Schlesinger as Theatre Director (uncredited)

Silvia Dionisio as Prince Cesare della Romita's Daughter (uncredited)

Victor Harrington as Functionary at Charity Event (uncredited)

Derek Aylward as Party Guest (uncredited)

Zakes Mokae as Black Man at French Party (uncredited)

David Harrison as Charles Glass (uncredited)

Sidonie Bond as Gillian (uncredited)

Margaret Gordon as Helen Dawlish (uncredited)

Angus MacKay as Ivor Dawlish (uncredited)

Jane Pearl as Jane (uncredited)

Irene Richmond as Mrs. Glass (uncredited)

Hugo Dyson as Walter Southgate (uncredited)

Christopher Greatorex as Art Critic at Ralph Riggs Exposure (uncredited)

Hyma Beckley as Guest at Art Gallery Viewing (uncredited)

Nicholas Wright as Young Man in Opening Scene (uncredited)

John Woodvine as Customs Officer (uncredited)

Helen Stirling as Governess to Cesare Family (uncredited)

Ernest Blyth as Man at Airport (uncredited)

John Tatum as Man at Tube Station (uncredited)

Roy Lansford as Party Guest (uncredited)

Noel Davis as Shop Assistant (uncredited)

Peter Avella as Reporter (uncredited)

Jimmy Charters as Man on Tube Station Escalator (uncredited)

Mike Edmonds as Man in Street (uncredited)

Peter Evans as Man at Charity Raffle (uncredited)

Eden Fox as Waiter (uncredited)

Otto Friese as Man in Street (uncredited)

Sheila Gish as Cameo (uncredited)

Lew Hooper as Model Agency Staff (uncredited)

Gerry Judge as Waiter (uncredited)

Anthony Lang as Man at Airport (uncredited)

Pat Lewis as Woman at Airport (uncredited)

Leonard Llewellyn as Model Agency Staff / Airline Passenger (uncredited)

Ray Lovelock as Undetermined Role (uncredited)

Jack Mandeville as Tube Passenger (uncredited)

Mary Maxfield as Lady at Charity Raffle (uncredited)

Brian Moorehead as Leslie Page (uncredited)

Bob Raymond as Waiter / Porter (uncredited)

Arnold Schulkes as Mourner (uncredited)

Frank Shelley as Father Norton (uncredited)

Esme Smythe as Art Gallery Guest (uncredited)

Philip Stewart as Guest at Art Gallery Viewing (uncredited)

Graham Tonbridge as Art Gallery Guest (uncredited)

George Oliver as Tube Passenger (uncredited)

Ian Selby as Model Agency Staff (uncredited)

Oscar James as Black Man on Stairs (uncredited)