John Hurt stars as Stephen Ward, a key figure in the Profumo Affair who becomes embroiled in the political scandal.
Joanne Whalley portrays Christine Keeler, a young model at the heart of the Profumo Affair, whose relationships with powerful men spark a national scandal.
Bridget Fonda plays Mandy Rice-Davies, another central figure in the Profumo Affair whose involvement adds layers of intrigue to the scandal.
Ian McKellen takes on the role of John Profumo, the British Secretary of State for War whose affair with Christine Keeler leads to a political scandal.
Leslie Phillips portrays Lord Astor, a key figure in the Profumo Affair whose connection to Christine Keeler adds to the controversy.
Britt Ekland plays Mariella Novotny, a friend of Christine Keeler who gets caught up in the scandal surrounding the affair.
Daniel Massey plays Mervyn Griffith-Jones, the prosecuting counsel in the trial related to the Profumo Affair.
Roland Gift portrays Johnnie Edgecombe, an acquaintance of Christine Keeler whose involvement in a violent incident adds to the scandal.
Alex Norton appears as Detective Inspector in charge of investigating the events surrounding the Profumo Affair.
Ronald Fraser plays Justice Marshall, a legal figure involved in aspects of the scandal's aftermath and fallout.
Paul Brooke appears as Detective Sergeant, part of the law enforcement team looking into the Profumo Affair.
Jeroen Krabbé takes on the role of Eugene Ivanov, a Soviet naval attache and rumored spy whose connection to the scandal adds an espionage angle.
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