"Prince Leo, last in the line of rulers of a long-deposed monarchy on continental Europe and jaded with the frenetic search for kicks with the European jet-set, returns to his father's London town house for rest."
Marcello Mastroianni
as Prince Leo
Billie Whitelaw
as Margaret
Calvin Lockhart
as Pimp Roscoe
Vladek Sheybal
as Laszlo
Graham Crowden
as Lawyer Max
Gwen Ffrangcon Davies
as Hilda
Glenna Forster-Jones
as Salambo
David de Keyser
as David
Keefe West
as Jasper
Kenneth J. Warren
as Kowalski
Patsy Smart
as Mrs Kowalksi
Ram John Holder
as Black Preacher
Thomas Bucson
as Mr Madi
Tina Solomon
as Mrs Madi
Brinsley Forde
as Bip
Robert Redman
as Madi Child
Malcolm Redman
Robert Kennedy
Phyllis MacMahon
as Blonde Whore
Princess Patience
as Black Whore
Bernard Boston
as Jasper's Bodyguard
Roy Stewart
Lucita Lijertwood
as Wailing Lady
Ishaq Bux
as Supermarket Manager
Doris Clark
as Singing Lady
Alba
as Pastor at Leo and Margaret's Weddin Rehearsal (uncredited)
Ros Drinkwater
as Woman (uncredited)
Gertan Klauber
as Man in Secret Meeting (uncredited)
Rosemary Macvie
as Patient in Pool (uncredited)
Liz Smith
as Raving Tenant (uncredited)
John Boorman
Director
George Tabori
Original Story
Tom Priestley
Editor
Zelda Barron
Production Manager
Robert Chartoff
Producer
Irwin Winkler
Tony Woollard
Production Design
Peter Young
Set Decoration
Joanne Woollard
Costume Design
Alex Garfath
Makeup Artist
Jim Atkinson
Sound Editor
Peter Suschitzky
Director of Photography
Writer
Bill Stair
Fred Myrow
Original Music Composer
Songs
Additional Writing