
Marcello Mastroianni
Grand Duke Nicholas Wladimirovitch Goduno
Acting

Rita Tushingham
Bridget Rafferty
Acting

Elaine Taylor
Victoria
Acting

Warren Mitchell
Popov
Acting

Leonard Rossiter
Inspector Dudley
Acting

Bill Fraser
Bookseller
Acting

Bryan Pringle
Police Sergeant
Acting

Francesca Tu
Jeanne Silkingers
Acting

David Horne
Duke of Windemere
Acting

Charles Lloyd Pack
Butler
Acting
![Juba Kennerley]()
Juba Kennerley
Casino Patron (uncredited)
Acting
![Ian Trigger]()
Ian Trigger
Popov's assistant (uncredited)
Acting

Norman Mitchell
(uncredited)
Acting

Nora Nicholson
Anastasia Petrovna
Acting

Rosalind Knight
Museum Visitor in Pink Dress (uncredited)
Acting