Vera Jane Siddons Beadon, formerly Jarvis and Whigham, was a Scottish socialite, heiress, and actress. She was known as the leading witness in the internationally publicized 1963 divorce case between her stepdaughter and stepson-in-law, Margaret Campbell, Duchess of Argyll and Ian Campbell, 11th Duke of Argyll. Beadon, who was accused of having an affair with the Duke of Argyll by her stepdaughter, successfully sued the duchess for libel, slander, and conspiracy to suborn perjury. Beadon testified in court on behalf of the duke, presenting evidence supporting the duke's claim that the duchess had engaged in extramarital affairs. At the time of her death in 1999, she was the last surviving participant in the Argyll divorce case.