Grand Duke Nicholas Wladimirovitch Goduno
Marcello Mastroianni
Bridget Rafferty
Rita Tushingham
Butler
Charles Lloyd Pack
Nashka
Anne Blake
David Webb
Casino Patron (uncredited)
Juba Kennerley
Popov's assistant (uncredited)
Ian Trigger
(uncredited)
Norman Mitchell
Anastasia Petrovna
Nora Nicholson
Victoria
Elaine Taylor
Honey
Margaret Blye
Popov
Warren Mitchell
Inspector Dudley
Leonard Rossiter
Bookseller
Bill Fraser
Police Sergeant
Bryan Pringle
Jeanne Silkingers
Francesca Tu
Duke of Windemere
David Horne
Producer
Carlo Ponti
Writer
Ernesto Gastaldi
Music
Norman Kay
Director
Christopher Morahan
Ronald Harwood
Selig J. Seligman
Pierre Rouve
N.F. Simpson
Editor
Peter Tanner
Production Design
Reece Pemberton
Makeup Artist
Toni Delaney
John O'Gorman
Production Manager
Bruce Sharman
Executive Producer
Associate Producer
Leigh Aman
Cinematography
Gerry Turpin
Costume Design
Dinah Greet